United States v. Roger Bergman ( 2017 )


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  •          Case: 14-14990   Date Filed: 03/24/2017   Page: 1 of 61
    [PUBLISH]
    IN THE UNITED STATES COURT OF APPEALS
    FOR THE ELEVENTH CIRCUIT
    ________________________
    No. 14-14990
    ________________________
    D.C. Docket No. 1:14-cr-20052-JEM-2
    UNITED STATES OF AMERICA,
    Plaintiff - Appellee,
    versus
    ROGER BERGMAN,
    RODOLFO SANTAYA,
    Defendants - Appellants.
    ________________________
    Appeals from the United States District Court
    for the Southern District of Florida
    ________________________
    (March 24, 2017)
    Case: 14-14990       Date Filed: 03/24/2017       Page: 2 of 61
    Before HULL, MARTIN and EBEL, * Circuit Judges.
    HULL, Circuit Judge:
    Defendant Roger Bergman was a licensed physician’s assistant employed by
    American Therapeutic Corporation (“ATC”). In late 2003, Bergman joined ATC
    and worked in ATC’s Miami and Homestead clinics until late August 2008.
    Defendant Rodolfo Santaya also worked for ATC from February 2006 until the
    government closed ATC in October 2010. Santaya served as a patient recruiter.
    Following a trial, a jury convicted defendant Bergman of (1) conspiracy to
    commit health care and wire fraud and (2) conspiracy to make false statements
    relating to health care matters. The jury convicted defendant Santaya of
    (1) conspiracy to commit health care and wire fraud, (2) conspiracy to pay and
    receive bribes and kickbacks in connection with a federal health care benefit
    program, and (3) receipt of bribes and kickbacks in connection with a federal
    health care benefit program. Both defendants appeal their convictions and
    sentences. After thorough review of the briefs and the entire record, and with the
    benefit of oral argument, we affirm.
    *
    Honorable David M. Ebel, United States Circuit Judge for the Tenth Circuit, sitting by
    designation.
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    I.     FACTUAL BACKGROUND
    Because the defendants challenge the sufficiency of the evidence supporting
    their convictions, we outline the trial evidence in the light most favorable to the
    government.
    A.    Partial Hospitalization Programs
    Marianella Valera, a therapist, opened ATC on June 1, 2000. In December
    2002, Valera started a Partial Hospitalization Program (“PHP”) through ATC. A
    PHP serves as a bridge between inpatient and outpatient care for patients with a
    psychiatric condition severe enough to possibly require hospitalization. A patient
    can be sent to a PHP either (1) from outpatient treatment because their provider has
    concerns about the patient but wants to keep them out of an inpatient stay, or
    (2) from inpatient treatment when the patient is improving but is not yet well
    enough to receive only routine outpatient care. PHPs treat patients suffering from
    a wide variety of mental illnesses, most commonly major depressive disorder,
    schizophrenia, and bipolar disorder. PHP treatment is inappropriate for those with
    impairments that would restrict their ability to participate in the program, such as
    those with memory and cognition impairment caused by Alzheimer’s disease or
    those with substance abuse problems.
    Community mental health centers (“CMHCs”), such as ATC, administer
    PHPs, which offer intensive outpatient psychiatric care including individual or
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    group psychotherapy, counseling, psychiatric diagnostic testing, and other mental
    health services. Patients generally stay in a PHP for two to three weeks and
    receive at least twenty hours of treatment per week. Staff at a PHP includes
    psychiatrists as well various other professionals, including nurses, nurse
    practitioners, physician’s assistants, occupational therapists, physical therapists,
    and social workers.
    B.    ATC’s Operations
    Valera founded and owned ATC, which developed into an extensive
    Medicare scam. Valera gave her boyfriend, Larry Duran, the task of overseeing
    the business and operations end of ATC’s PHPs. From 2003, when ATC received
    its first provider number, to 2010, when the government shut down the operation,
    ATC billed Medicare for approximately $200 million in claims, and Medicare paid
    over $85 million back to ATC.
    In order to bill Medicare, ATC needed patients. ATC admitted patients to its
    PHP who had Alzheimer’s, dementia, and substance abuse problems. ATC also
    admitted patients who were essentially healthy but wanted to leave their assisted
    living facilities, and ATC paid them to do so. The ATC patients with issues such
    as Alzheimer’s and dementia often were not oriented to time or place, did not
    know where they were, and would confuse staff with their relatives.
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    ATC did have some patients who needed psychiatric help and qualified for
    the services ATC purported to provide. ATC, however, did not provide the
    individualized treatment required by Medicare. The doctors at ATC did not do
    much of anything and rarely came in. When they did come, they signed notes and
    saw patients but did not treat them. Mainly, the doctors just signed the
    documentation that other staff prepared for them in order to legitimize the
    treatment billed to Medicare. Some days there was no doctor at the facility, even
    though admissions occurred every day and a doctor ought to have been present to
    admit a patient.
    Typically, ATC treated patients for four to eight weeks, depending on the
    maximum benefits that Medicare would pay. Valera, and not the doctors, decided
    how long each patient would receive treatment, and she told her medical directors
    to discharge patients at six weeks to avoid scrutiny from Medicare. ATC also
    recycled patients after a discharge, by readmitting them when Medicare would pay
    their benefits again. ATC believed patients needed to stay out of the PHP for
    ninety days without any bills to Medicare before Medicare would pay for further
    PHP services. After ninety days, either the referral source would call ATC and
    bring the patient back, or ATC would call the referral source in order to have the
    patient brought back. These returns were not based on the medical needs of the
    patients but on the ability to bill Medicare for additional treatment. If a patient did
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    not want to stay at ATC, either ATC would persuade the patient to stay or ATC
    would ask the referral source to persuade the patient to stay.
    C.    ATC’s Billing of Medicare
    ATC began paying for patient referrals and asked for only Medicare patients
    because Medicare did not require preauthorization and would pay claims within
    two weeks. Because of the sheer volume of claims Medicare receives, Medicare is
    unable to review every claim submitted. Indeed, Medicare reviews less than one or
    two percent of the submitted claims before paying them. As a result, Medicare
    relies on providers to submit only legitimate and properly documented claims.
    ATC targeted Medicare patients and submitted false, exaggerated medical records
    to substantiate the claims it billed to Medicare. Oftentimes, all the necessary
    documents were not even completed when the claims were submitted, and the
    documents were completed later in case Medicare audited ATC.
    Generally, Medicare’s standards allow reimbursement only for PHP
    treatment that is (1) provided to a legitimately enrolled Medicare beneficiary,
    (2) furnished by a licensed provider properly enrolled in the Medicare program,
    (3) actually furnished, (4) medically necessary, and (5) appropriately documented
    by the medical records. Medicare provides to CMHCs a Local Coverage
    Determination (“LCD”) document, which contains guidelines to follow in order to
    bill properly for PHP services.
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    During the time relevant to this case, the LCD applicable to Florida provided
    that Medicare would not pay for, among other things: (1) treatments for patients
    who are psychiatrically stable, (2) group therapy that is not individualized, and
    (3) treatments to patients who cannot understand and participate in the treatment.
    Medicare would not pay PHP claims for patients who did not suffer from a mental
    disorder, nor for the patients whose disorders were not acute or severe enough to
    interfere with daily life activities. Medicare would not pay PHP claims for patients
    who suffered from either advanced Alzheimer’s disease or dementia. Medicare
    also would not pay PHP claims for patients who were active substance abusers.
    Medicare requires four types of documents to substantiate claims: an initial
    certification, a recertification (for services beyond 18 days), a treatment plan, and
    progress notes. The initial certification must be completed by the patient’s
    attending physician and cannot be completed by a physician’s assistant. A
    treatment plan also must be signed by the attending physician; a physician’s
    assistant cannot complete the treatment plan. The physician must also be involved
    in establishing the treatment plan and actively treating the patient. In order to
    submit proper progress notes, a medical professional must see the patient, provide
    the treatment, and write the progress note. Medicare requires that the information
    contained in these documents be true and be completed before the submission of a
    PHP claim.
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    ATC generally did not comply with the LCD’s guidelines. At its peak, ATC
    had seven locations, all offering PHPs, staffed by therapists, nurses, doctors,
    physician’s assistants, and administrators who all assisted with the fraud by
    providing falsified documentation to make it appear to Medicare that ATC
    provided adequate and medically necessary treatment. ATC employees, including
    doctors and physician’s assistants, falsified doctor’s notes, initial psychiatric
    evaluations, discharges, intakes from therapists, treatment plans, and daily progress
    notes. ATC employees falsified, for example, patient history, onset of qualified
    mental illness, the seriousness of a condition, the fact the patient was recently
    under the treatment of a psychiatrist, prescribed medication, and patient quotes.
    D.    Bergman’s Role
    ATC hired Bergman as a physician’s assistant for Dr. Roberto Ayala, a
    licensed psychiatrist and medical director for ATC’s Homestead office. Dr. Ayala
    did not actually see the patients and instead allowed Bergman to see the patients
    and sign the documentation. Because Dr. Ayala was not around, Valera would
    introduce Bergman to the patients as the doctor. In his role, Bergman created, or
    dictated, initial psychiatric evaluations, weekly physician’s notes, and discharge
    summaries, even though he was not a doctor. At the beginning, Dr. Ayala would
    sign these notes that Bergman created, but later on both Dr. Ayala and Bergman
    signed the notes.
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    Bergman falsified notes for patients who were not impaired by an acute
    psychiatric condition and for patients with mental impairments such as dementia
    that would prevent them from understanding and benefiting from a PHP. Bergman
    often wrote notes for patients he never saw and for days he was not even at the
    office. Instead, Bergman would sit in the medical records room, get the patient’s
    chart, and dictate notes from the chart as if he had seen the patient. ATC submitted
    Bergman’s notes to Medicare for payment.
    At any given time, the Homestead office had between 60 and 110 patients
    who needed to be seen each week. Bergman, however, came into the office
    infrequently, maybe once a week, and would only see a handful of patients for just
    a few minutes before leaving. By 2008, Bergman was spending very little time
    with the patients, only two or three hours, when he did come to the office. Some
    weeks Bergman did not come to the office at all. For the patients he did not see,
    Bergman would dictate the charts as if he had seen the patient. He did this from
    2003 through 2008.
    On some occasions, Bergman would dictate patient notes to bill for patients
    who were not at ATC because they were already discharged. Some patients
    actually needed treatment but never received it. Bergman’s notes were “cookie
    cutter” and often very similar to one another.
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    ATC also hired Dana Gonzalez to fabricate notes and other paperwork for
    Bergman, who he was behind on the paperwork needed to bill Medicare. When
    Gonzalez started, she had a meeting with Valera and Bergman at which Valera
    stated that Gonzalez would be helping Bergman catch up on the patient notes and
    whatever else was not completed in the chart. Valera trained Gonzalez to take
    Bergman’s “cookie cutter” notes and to individualize the notes by adding made-up
    quotes from the patients to match the diagnosis. Valera also trained Gonzalez on
    how to fill out the charts. For two years, Gonzalez wrote approximately 200 notes
    per week for Bergman using information she made up and not based on any
    treatment provided to the patients. Gonzalez wrote the notes from her apartment.
    Gonzalez never discussed with Bergman or Dr. Ayala what she was writing
    in the notes. Instead, Gonzalez would give Bergman a stack of 200 completed
    notes for the week, which Bergman would sign without reading. For the notes that
    Bergman dictated, Gonzalez would go through them and individualize them by
    adding statements from the patients, symptoms, examples, medication changes,
    and their progress. Bergman signed these notes as well. Unlike other ATC
    employees, Bergman’s pay was tied to the number of notes he dictated.
    Based on Bergman’s paperwork, ATC billed Medicare for approximately
    $38 million for which Medicare paid ATC a little over $18 million.
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    E.    Bergman’s Testimony
    Neither Bergman nor Santaya called any witnesses or introduced any
    evidence at trial, except that Bergman testified in his own defense. Bergman’s
    version of his work for ATC is quite different from what the government’s
    witnesses recounted.
    According to Bergman, Dr. Leonardo Alonzo invited him to work at ATC.
    Bergman worked at ATC as a physician’s assistant from 2003 to late August 2008.
    At some point, possibly 2003, Dr. Alonzo quit, and Dr. Ayala came to work at
    ATC. Around the same time, Bergman started working at ATC’s Homestead
    office. During this time, ATC expanded both its Miami and Homestead offices.
    Bergman testified that the Homestead office had at most 30 or 40 patients in
    a week at its busiest. At both clinics together, ATC had at most around 100
    patients. Bergman said there were only one or two weeks during the five years he
    worked at ATC when he did not see patients. Bergman also said that the patients
    can go two weeks without being seen.
    Bergman further testified that he performed the initial psychiatric evaluation
    of all his patients. Bergman said that a lot of these patients were his patients from
    the hospital because he got referrals from physicians he worked with outside of
    ATC. Bergman claimed that on many occasions he would have seen a patient at
    the hospital the day before the patient was admitted to ATC’s PHP. Bergman did
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    his dictations in his own office at ATC’s Miami location, but at the Homestead
    location he did not have his own office. Bergman would either do his dictations in
    the space available at ATC’s Homestead office or do them at home using his notes
    from the day. Bergman then called the dictation company and recorded the notes,
    recording when the patient was seen, the patient’s chief complaint, the patient’s
    mental status, and the medication management. Bergman explained that the
    dictations and resulting notes for different patients were often similar, with the
    same statements being pasted in, because the patients were on the same treatment
    plan, namely PHP services five days a week.
    On rare occasions following Bergman’s initial psychiatric evaluation,
    Bergman would call Dr. Ayala to see a patient when he was unsure what to do with
    the patient. After Dr. Ayala visited, the patient would be admitted to the program.
    The next time Bergman saw a patient, he would do a progress note.
    Between Bergman’s initial evaluation and first progress note, however, the
    patient would be involved in the PHP treatment. According to Bergman, the
    patient would see a social worker and go to therapy groups. Some of these groups
    were for substance abusers, including separate groups for those who were also
    depressed, psychotic, or elderly. There were also groups dedicated to medication
    management, cognitive therapeutics, and Gestalt therapy. Bergman would refer
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    patients to a group and would change a patient’s group if the patient was not
    improving, but he was not involved in the actual group therapy.
    Bergman stated that he saw patients with depression, psychotic patients,
    substance abusers with psychoses, substance abusers with depression, and patients
    with signs of Alzheimer’s, among others. According to Bergman, patients with
    early stages of dementia can become either agitated or depressed, which is
    sometimes caused by their medication. Bergman claimed that ATC did not have
    patients who had such severe memory loss that they did not know what they were
    doing. Bergman testified that he never admitted anyone whom he thought had
    advanced dementia or Alzheimer’s. Indeed, Bergman said he brought up the issue
    of whether dementia patients could benefit from a PHP with ATC’s physicians and
    was told that the patients could benefit at the beginning while they still understood
    what was happening to them.
    Before he left ATC, Bergman was doing fewer and fewer evaluations, and
    ATC had hired another medical professional to do evaluations at its Homestead
    office. ATC paid Bergman $30 for evaluations and $15 for follow-ups. In 2007,
    ATC paid Bergman a total of $91,697. According to Bergman, $90,000 was low
    for physician’s assistants, who normally make between $130,000 and $150,000
    each year. While working for ATC, Bergman billed ATC, not Medicare, by giving
    ATC a list of the patients he saw and for whom he dictated notes.
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    Bergman testified that people at ATC called him “Dr. Roger,” but never Dr.
    Bergman, and that he never held himself out as a physician or as Dr. Ayala.
    Bergman said he always worked under Dr. Ayala’s supervision and when Dr.
    Ayala vacationed outside of the country, Dr. Ayala arranged for another physician
    to cover.
    Bergman further testified that he had never seen Dana Gonzalez in his life
    and had no awareness of her prior to trial. Bergman claimed that to his knowledge
    he signed only the notes he did himself and there were no other notes. Bergman
    stated that, at some point, Valera asked him to complete notes for old files for
    patients who had left. Bergman refused Valera’s request because he had never
    seen the patients.
    F.    Bergman’s Departure from ATC
    Bergman and Valera also tell contradictory stories about why Bergman no
    longer worked at ATC by September 2008.
    Valera testified that she and Duran (her boyfriend) “got tired” of how behind
    Bergman was in his work and “we let him go.” According to Valera, Bergman was
    “super behind” in his dictations and notes, and she and other employees had to
    spend “hours and hours and hours” fixing his documentation, downloading, and
    making corrections. Valera testified as follows:
    Q. And it was customary at your company to give employees that you
    wanted to terminate an opportunity to resign before they were fired?
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    A. Correct
    ....
    Q. And although isn’t it true that you wanted him out, you gave him
    an opportunity to resign and he did resign?
    A. I didn’t want to cause any damage to anybody. It’s better when
    you resign.
    Valera thus gave Bergman an opportunity to resign, instead of being fired, and he
    did so.
    Bergman’s story is quite different. He contends that he voluntarily left ATC
    because it had inappropriate patients. Just prior to leaving ATC, Bergman
    remembers going to the Miami office to see patients, going to visit a group he had
    never seen before, and finding a group of patients just staring into space. Bergman
    was told not to worry about it because they were not his patients. Indeed, there
    were other doctors working at ATC who had their own groups of patients.
    Bergman subsequently told Valera and Duran that he would not be coming
    back. Bergman claimed that he had seen patients inappropriate for a PHP on only
    one prior occasion when a group of them came to the Homestead location.
    Bergman also claimed that he made a big fuss about it until another ATC employee
    told him those patients would not be brought back.
    Bergman testified that he told Duran, while Valera was in the room, that he
    would not be coming back to ATC. Duran asked him why, and Bergman
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    responded, “you know why.” Bergman stated that he then sent in a resignation
    letter. While the letter itself is not in the record, Bergman testified that he wrote
    and signed the resignation letter and his wife mailed it.
    Valera disputed Bergman’s testimony about his departure. Valera said that
    Bergman never raised any concerns that he was leaving because of fraud at ATC.
    Valera testified that Bergman falsified billing for five years, and never said he
    would stop. Instead of firing him, Valera merely gave Bergman the opportunity to
    resign first, which he did in August 2008. ATC last paid Bergman via a September
    5, 2008 check.
    G.    ATC’s Patient Recruitment
    In contrast to Bergman’s role in creating notes for billing, Santaya’s role was
    to recruit patients, which he did in exchange for kickbacks. Legitimate PHPs
    typically attract patients through referrals from outpatient providers, usually
    psychiatrists, who know the patients fairly well and know the warning signs for
    when a patient’s condition is worsening. None of ATC’s referrals came from a
    psychiatrist. Rather, ATC paid hundreds of other people for those referrals,
    including Santaya.
    ATC paid outside patient recruiters, also called patient brokers, for each
    patient sent to an ATC center. When ATC began paying for patients, they asked
    the recruiters to provide only Medicare patients. Some of the recruiters were
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    owners of assisted living facilities or halfway houses who sent their residents to
    ATC. Other patient recruiters, like Santaya, went into the community and
    recruited patients from low-income housing, retirement homes, or apartments with
    large numbers of disabled or elderly people. These patient recruiters came from
    outside ATC, and ATC did not consider them employees. Rather, ATC had a rule
    that its own employees could not recruit patients.
    ATC paid its patient recruiters in cash and checks to avoid creating a paper
    trail. Patient recruiters in turn paid cash to some patients to get them to go to ATC.
    ATC paid its recruiters at rates between $30 and $50 per patient per day. ATC also
    paid a one-time $100 bonus to the patient recruiter for each new patient.
    From 2005 to 2010, ATC tasked Margarita Acevedo with ensuring that
    ATC’s centers remained full of patients. Acevedo did this by marketing ATC to
    patients and negotiating deals with patient brokers, like Santaya, to pay them
    money to send patients to ATC. Acevedo handled all aspects of this kickback
    scheme, including negotiating the deals, tracking the amounts owed, delivering the
    payments, and finding people to assist her.
    Acevedo brought Sandra Jimenez into the company to handle the patient
    recruiting duties for the Homestead office, including marketing and paying
    recruiters. Acevedo previously knew Jimenez through a mutual friend, and both
    are from Colombia. Acevedo convinced Duran to meet with Jimenez at lunch to
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    see if he would hire her. Both Acevedo and Jimenez had an intimate relationship
    with Duran while they all worked at ATC and while Duran was dating Valera.
    Each of ATC’s offices maintained a “Master Patient Log” (“MPL”) in a
    spreadsheet to keep track of the admission of the patients, their stays, and the
    amounts owed to the patient recruiters. 1 The operations coordinator at each
    location did the intake and recorded the relevant patient information in the
    spreadsheet, including the patient’s admission date, discharge date, first name, last
    name, and record number, as well as the name of the person who referred them.
    Acevedo and Jimenez used the MPL, along with the Medicare billing, to calculate
    the amount owed to each recruiter based on that recruiter’s patients, the number of
    days the patients attended, and the negotiated rate with the recruiter.
    ATC paid its patient recruiters hundreds of thousands of dollars each month
    in cash, which it did to avoid any red flags or paper trail. Duran, Acevedo, and
    Jimenez obtained the large amounts of cash by cashing checks made out to fake
    employees or shell companies. Some combination of Valera, Duran, and Acevedo
    then would count the money and stuff it into envelopes. Acevedo and Jimenez
    delivered the envelopes of cash to the patient recruiters.
    1
    There were thus multiple Master Patient Logs. The government also repeatedly refers to
    “kickback logs,” which were in fact derivatives of the Master Patient Logs. For simplicity, we
    refer to all of these documents as the “MPL.”
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    H.    Jimenez’s Recruitment of Patients
    Although ATC did not allow its own employees to recruit patients, Jimenez
    testified that she recruited some patients herself under the table through three
    patient brokers. Jimenez had deals with these patient recruiters where they would
    give her the money for patients she recruited after ATC paid them. Alternatively,
    Jimenez would take extra money out of the envelopes after falsely increasing the
    number of days a patient stayed at ATC.
    To carry out this scheme, Jimenez would falsely tell the ATC office
    coordinator that a patient she had brought to ATC was brought by one of the three
    patient recruiters with whom she had arrangements. The office coordinator would
    then put that patient recruiter’s name into the MPL. Thus, the MPL contained
    inaccurate information about the actual source of the patient.
    I.    Santaya’s Role
    Defendant Santaya was one of ATC’s paid patient brokers from February
    2006 to October 2010. Acevedo testified that she paid cash kickbacks to Santaya
    and identified him sitting in the courtroom. Jimenez also identified Santaya and
    testified that she paid him money to bring patients to ATC. The MPL identified
    Santaya as a referral source.
    Acevedo testified that Santaya paid his patients to attend ATC and would
    discuss those payments with Acevedo either when Santaya fronted money to
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    patients before ATC had paid him, or when a patient would tell Santaya that the
    patient was short on days attended at ATC. Acevedo also testified that she
    coached Santaya about what symptoms, such as depression or not eating, his
    patients needed to complain in order to get admitted into ATC’s PHP, and Santaya
    trained his patients to say the right things. Santaya knew of ATC’s policy of
    recycling patients and would contact Acevedo and Jimenez to check if any of his
    patients were due to return so he could bring them back to ATC.
    Defendant Santaya’s kickback started at $30 per patient per day but
    eventually increased to $45. ATC paid Santaya an additional $100 for each new
    patient. Santaya generally received between $5,000 and $13,000 from ATC each
    month. In total, ATC billed Medicare $2.9 million for Santaya’s patients, for
    which Medicare paid out $1.2 million.
    J.    Procedural History
    On January 28, 2014, the government filed an indictment against Bergman,
    Santaya, and a third defendant. On June 24, 2014, a grand jury returned a
    superseding indictment against those three defendants. The superseding
    indictment charged Bergman with (1) conspiracy to commit health care fraud and
    wire fraud, in violation of 
    18 U.S.C. §§ 1343
    , 1347, and 1349 (Count 1) and
    (2) conspiracy to make false statements relating to health care matters, in violation
    of 
    18 U.S.C. §§ 371
     and 1035 (Count 2). The superseding indictment charged
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    Santaya with (1) conspiracy to commit health care fraud and wire fraud, in
    violation of 
    18 U.S.C. §§ 1343
    , 1347, and 1349 (Count 1), (2) conspiracy to pay
    and receive bribes and kickbacks in connection with a federal health care benefit
    program, in violation of 
    18 U.S.C. § 371
     and 42 U.S.C. § 1320a-7b (Count 3), and
    (3) receipt of bribes and kickbacks in connection with a federal health care benefit
    program, in violation of 42 U.S.C. § 1320a-7b(b)(1)(A) (Counts 4-5).
    On July 28, 2014, following a trial, the jury found Bergman and Santaya
    guilty on all counts. Having already denied motions for acquittal from Bergman
    and Santaya during the trial, the district court later denied Bergman’s post-trial
    motions for judgment of acquittal and for new trial, as well as Santaya’s post-trial
    motion for new trial.
    The district court sentenced Bergman to 180 months in prison on Count 1
    and 60 months on Count 2, running concurrently. The district court sentenced
    Santaya to 150 months in prison on Count 1 and 60 months on each of Counts 3, 4,
    and 5, all running concurrently.
    II.    SUFFICIENCY OF THE EVIDENCE
    Both Bergman and Santaya appeal the district court’s denial of their motions
    for acquittal. “We review de novo the denial of a motion for judgment of
    acquittal.” United States v. Hernandez, 
    433 F.3d 1328
    , 1332 (11th Cir. 2005). In
    doing so, “our evaluation is comparable to the standard used in reviewing the
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    sufficiency of the evidence to sustain a conviction.” United States v. Ellington,
    
    348 F.3d 984
    , 989 (11th Cir. 2003). Under that standard, we review the evidence
    presented at trial in the light most favorable to the government, and we draw all
    reasonable factual inferences in favor of the jury’s verdict. United States v.
    Westry, 
    524 F.3d 1198
    , 1210 (11th Cir. 2008).
    A.    Test for Withdrawal from Conspiracy
    One of Bergman’s defenses was that he withdrew from the conspiracy in
    either August or September 2008, which meant that the January 2014 indictment
    was barred by the five-year statute of limitations. At Bergman’s request, the
    district court fully instructed the jury on his affirmative defense of withdrawal,
    including the following:
    To prove this defense, the defendant Bergman must establish
    each and every one of the following things by the preponderance of
    the evidence:
    One, that the defendant Bergman completely withdrew from the
    conspiracy. A partial or temporary withdrawal is not sufficient.
    Two, that defendant Bergman took some affirmative step to
    renounce or defeat the purpose of the conspiracy.
    An affirmative step would include an act that was inconsistent
    with the purpose of the conspiracy and is communicated in a way that
    is reasonably likely to reach the other members. But some affirmative
    step is required. Just doing nothing or just avoiding contact with other
    members would not be enough.
    Three, that defendant Bergman withdrew before the date of
    January 28, 2009.
    22
    Case: 14-14990     Date Filed: 03/24/2017    Page: 23 of 61
    Defendant Bergman must prove each of the elements as set
    forth above by a preponderance of the evidence. A preponderance of
    the evidence simply means an amount of evidence that is enough to
    persuade that you [sic] the defendant’s claim is more likely true than
    not true. If you determine that the defendant Bergman withdrew from
    a conspiracy, then you must find him not guilty of that conspiracy.
    Bergman does not challenge the jury instruction itself, the existence of the
    conspiracy, or that he joined it. Indeed, ample evidence established the
    conspiracy’s existence and Bergman’s extensive participation.
    Rather, Bergman argues that he established his withdrawal defense as a
    matter of law and that the district court should have granted his motion for
    judgment of acquittal and not submitted the withdrawal issue to the jury. We
    review the legal test for withdrawal and then the relevant evidence.
    “It is well settled that an accused conspirator’s participation in a criminal
    conspiracy is presumed to continue until all the objects of the conspiracy have been
    accomplished or until the last overt act is committed by any of the conspirators.”
    United States v. Finestone, 
    816 F.2d 583
    , 589 (11th Cir. 1987). “Upon joining a
    criminal conspiracy, a defendant’s membership in the ongoing unlawful scheme
    continues until he withdraws. A defendant who withdraws outside the relevant
    statute-of-limitations period has a complete defense to prosecution.” Smith v.
    United States, 568 U.S. __, __, 
    133 S. Ct. 714
    , 717 (2013). A conspirator who
    effectively withdraws is no longer a member of the conspiracy and is not bound by
    the subsequent acts of the conspirators. Morton’s Mkt., Inc. v. Gustafson’s Dairy,
    23
    Case: 14-14990        Date Filed: 03/24/2017        Page: 24 of 61
    Inc., 
    198 F.3d 823
    , 837 (11th Cir. 1999), amended in part, 
    211 F.3d 1224
     (11th
    Cir. 2000).
    Withdrawal, however, is an affirmative defense, which the defendant has the
    burden of proving by a preponderance of the evidence in order to overcome the
    presumption of his continued participation in the conspiracy. Smith, 568 U.S. at
    __, 
    133 S. Ct. at 719, 721
    ; Finestone, 
    816 F.2d at 589
    . “The defendant’s burden in
    this regard is substantial.” Finestone, 
    816 F.2d at 589
    .
    This Circuit has a well-established, two-prong test for withdrawal: “the
    defendant must prove that he undertook affirmative steps, inconsistent with the
    objects of the conspiracy, to disavow or to defeat the conspiratorial objectives, and
    either communicated those acts in a manner reasonably calculated to reach his co-
    conspirators or disclosed the illegal scheme to law enforcement authorities.” 2 
    Id.
    (first emphasis added); see also United States v. Hogan, 
    986 F.2d 1364
    , 1375 (11th
    Cir. 1993) (same); United States v. Pippin, 
    903 F.2d 1478
    , 1481 (11th Cir. 1990)
    (same).
    Merely ending one’s activity in a conspiracy does not constitute withdrawal.
    Pippin, 
    903 F.2d at 1481
    ; see also Finestone, 
    816 F.2d at 589
     (“A mere cessation
    2
    To satisfy the second prong of communication of withdrawal, the accused conspirator
    “is not required to notify ‘each other member’ that he will no longer participate, but the acts of
    withdrawal must be ‘communicated in a manner reasonably calculated to reach co-
    conspirators.’” United States v. Arias, 
    431 F.3d 1327
    , 1341 (11th Cir. 2005) (quoting United
    States v. U.S. Gypsum Co., 
    438 U.S. 422
    , 464–65, 
    98 S. Ct. 2864
    , 2887 (1978)).
    24
    Case: 14-14990     Date Filed: 03/24/2017    Page: 25 of 61
    of activity in the conspiracy is not sufficient to establish withdrawal.”); United
    States v. Badolato, 
    701 F.2d 915
    , 921 n.4 (11th Cir. 1983) (same). “Withdrawal
    from a conspiracy is only a defense if the actor affirmatively withdrew; it is not
    enough that he merely ceased to participate.” Hogan, 986 F.2d at 1375. Thus in
    this Circuit, it has long been necessary that the conspirator prove that he undertook
    affirmatives steps “to disavow or to defeat” the objects of the conspiracy. The
    defense of withdrawal is not available to one who merely ends his participation in
    the conspiracy.
    In several cases, this Court has affirmed criminal convictions, finding that
    the evidence was insufficient to warrant a jury instruction on the withdrawal
    defense or to make the withdrawal defense available at all. See Hogan, 986 F.2d at
    1375 (drug conspiracy); Pippin, 
    903 F.2d at 1481-82
     (bid-rigging conspiracy);
    Finestone, 
    816 F.2d at 588-89
     (drug conspiracy).
    In United States v. Arias, however, this Court vacated a Medicare fraud
    conviction because the district court refused to give a jury instruction on the
    withdrawal defense. 
    431 F.3d 1327
    , 1341-42 (11th Cir. 2005). In Arias, the
    defendant, Dr. Sarduy, worked at First Option Medical Center and knowingly
    certified false diagnoses, facilitating First Option’s billing Medicare for
    unnecessary medication and medical equipment. 
    Id. at 1339
    . Blue Cross/Blue
    Shield served as the administrator of Medicare Part B that paid First Option. On
    25
    Case: 14-14990       Date Filed: 03/24/2017       Page: 26 of 61
    August 28, 1995, Dr. Sarduy sent a letter to Blue Cross/Blue Shield “wherein he
    advised them that he was no longer seeing patients at First Option, and requested
    his cancellation as [a] provider at First Option.” 
    Id. at 1341
    . After he sent the
    August 28 letter, Dr. Sarduy’s name was crossed off the list of individual provider
    numbers on First Option’s billing enrollment form, and checks paying Dr. Sarduy
    ceased in September 1995. 
    Id.
     There was also evidence that, subsequently in
    October 1995, First Option “was attempting to engage Sarduy’s continued
    participation.” 
    Id.
     On December 4, 1995, Dr. Sarduy sent a second letter to Blue
    Cross/Blue Shield that “again request[ed] Sarduy’s cancellation as a provider for
    First Option, and advise[ed] Blue Cross/Blue Shield that he had not seen any
    patients since sending the previous cancellation letter in August.” 
    Id.
    In vacating Dr. Sarduy’s Medicare fraud conviction, this Court concluded
    that: (1) Dr. Sarduy “provided a sufficient foundation in the evidence from which a
    jury could conclude that he took affirmative steps to withdraw from the conspiracy
    and to communicate that withdrawal to his co-conspirators”; 3 (2) Dr. Sarduy “was
    entitled to the jury instruction he requested” on his withdrawal defense; and
    (3) “[t]he district court’s erroneous refusal to charge the jury as requested
    mandates that we vacate Sarduy’s conviction.” 
    Id. at 1341-42
    . Because Dr.
    3
    In Arias, an expert witness testified that a physician could “reasonably assume” that, by
    notifying Medicare in this fashion, “Medicare would notify any other participating providers.”
    Arias, 431 F.3d at 1341.
    26
    Case: 14-14990     Date Filed: 03/24/2017    Page: 27 of 61
    Sarduy voluntarily stopped seeing First Option patients, twice advised Blue
    Cross/Blue Shield of that fact, and requested his provider number be cancelled, this
    Court concluded that Dr. Sarduy had presented sufficient evidence such that the
    jury should have considered his withdrawal defense. Arias supports the district
    court’s decision here to charge the jury on Bergman’s withdrawal defense.
    We recognize that Bergman argues that he was entitled to more than a jury
    charge and that the district court should have granted his motion for acquittal as a
    matter of law. Bergman relies on Morton’s Market, so we discuss why that
    decision does not compel Bergman’s acquittal as a matter of law.
    Morton’s Market is a civil antitrust case, where the plaintiff companies,
    retailers of milk, sued the defendant dairies that produced and sold the milk to
    them. 198 F.3d at 826-27. The plaintiff retailers alleged that the defendant dairies
    engaged in unlawful price-fixing of wholesale milk prices to them as retailers. Id.
    at 826. Defendant Pet, Inc., one of the dairies, had sold its dairy entirely back in
    1985 and thus claimed that it had withdrawn from the milk price-fixing conspiracy
    in 1985. Id. at 837. This meant that the plaintiffs’ 1993 civil lawsuit was barred
    by the four-year statute of limitations. Id. at 837. The district court granted
    defendant Pet, Inc.’s motion for summary judgment. Id. at 839.
    Affirming, this Court concluded that defendant Pet, Inc. had withdrawn from
    the conspiracy upon the sale of its dairy, stating:
    27
    Case: 14-14990     Date Filed: 03/24/2017    Page: 28 of 61
    [Pet, Inc.] did nothing more to assist or participate in the price-fixing
    activities of the other dairies. This retirement was communicated to
    the other dairies by the media. They knew that from that time on, Pet
    would not lend its services to the conspiracy. Thus, the purposes of
    the conspiracy were defeated at least as to Pet. We conclude,
    therefore, that Pet did effectively withdraw from the price-fixing
    conspiracy upon the sale of its dairy.
    Id. We described Pet’s “break with the other conspirators” as “both clean and
    permanent.” See id. We added too: “[T]he law has given effect to a conspirator’s
    abandonment of the conspiracy only where the conspirator can demonstrate that he
    retired from the business, severed all ties to the business, and deprived the
    remaining conspirator group of the services which he provided to the conspiracy.”
    Id. We said: “Resignation from the conspiring business has frequently been held
    to constitute effective withdrawal.” Id.
    Against this background of Eleventh Circuit decisions, we consider
    Bergman’s evidence.
    B.    Bergman’s Evidence as to Withdrawal
    The criminal charges against Bergman are subject to a five-year statute of
    limitations. See United States v. McNair, 
    605 F.3d 1152
    , 1213 (11th Cir. 2010).
    Bergman ceased working at ATC in August 2008, and ATC sent his last check on
    September 5, 2008. This was more than five years before the January 28, 2014
    indictment of Bergman. Thus, the question is whether Bergman took affirmative
    steps “to disavow or defeat” the conspiratorial objectives by ceasing his work at
    28
    Case: 14-14990         Date Filed: 03/24/2017   Page: 29 of 61
    ATC. The problem for Bergman is the conflicting testimony over why he ceased
    working at ATC.
    Bergman’s testimony, if believed, showed that he found patients staring into
    space who did not qualify for PHP treatment at ATC’s Miami office, that he was
    upset about it, and that he thereafter voluntarily resigned because of the fraud.
    Bergman testified that he had a meeting with Valera and Duran where he informed
    them he was leaving ATC. Bergman also testified that his wife subsequently
    mailed in his resignation letter.
    Bergman’s testimony, claiming how he left ATC, is diametrically opposed
    to Valera’s testimony that ATC let Bergman go because of his unsatisfactory work.
    Valera’s testimony, if believed, is that she let employees whom she was firing, like
    Bergman, resign. The jury could have believed Valera’s version of events and
    found that Bergman was forced out of ATC because of his sloppy and untimely
    dictations and that Valera merely allowed him to resign to avoid being fired and to
    save face. The jury could have reasonably found that Valera took the affirmative
    step of getting rid of Bergman and that Bergman did not take affirmative steps “to
    disavow or defeat” the objectives of the conspiracy.
    In sum, Bergman’s withdrawal defense depended on who the jury believed.
    Therefore, the district court did not err in submitting the withdrawal issue to the
    jury and in denying Bergman’s motion for acquittal as a matter of law.
    29
    Case: 14-14990     Date Filed: 03/24/2017   Page: 30 of 61
    The dissent argues (1) that “Mr. Bergman chose to resign,” rather than wait
    and be fired by Valera and (2) that thus his resigning constitutes withdrawal as a
    matter of law. Dissenting Op. at 4. The dissent’s argument isolates the resignation
    letter from the factual context and circumstances of Bergman’s departure from
    ATC. In contrast, the district court properly let the jury consider all the evidence
    about Bergman’s cessation of work at ATC and decide whether Valera took the
    affirmative step of getting rid of Bergman or whether Bergman took an affirmative
    step to disavow or defeat the conspiracy.
    The dissent also argues that our prior “holding” in Morton’s Market
    “requires” our panel to hold that Bergman’s resignation constitutes withdrawal
    from the conspiracy as a matter of law. Dissenting Op. at 1, 6. As we quoted
    earlier, there is language in Morton’s Market stating that resignation from a
    conspiring business has been held to constitute effective withdrawal. Morton’s
    Market, however, involved an owner-company’s sale of its entire dairy business
    and did not involve an employee departure or employee “resignation” under threat
    of firing.
    Therefore, the holding in Morton’s Market is that the owner-company’s sale
    of its entire business and exit from the dairy business constituted withdrawal from
    the milk-pricing conspiracy. 198 F.3d at 839. Our Circuit’s well-established
    “prior panel precedent rule obligates us to follow the holdings of an earlier
    30
    Case: 14-14990     Date Filed: 03/24/2017    Page: 31 of 61
    decision [Morton’s Market], but the holdings of a prior decision [Morton’s Market]
    can reach only as far as the facts and circumstances presented to the court in the
    case which produced that decision.” Anders v. Hometown Mortg. Servs., Inc., 
    346 F.3d 1024
    , 1031 (11th Cir. 2003); see also Edwards v. Prime, Inc., 
    602 F.3d 1276
    ,
    1298 (11th Cir. 2010) (Under our prior panel precedent rule, we “have pointed out
    many times that regardless of what a court says in its opinion, the decision can
    hold nothing beyond the facts of that case”).
    Because there was no employee resignation from a company in Morton’s
    Market, much less a “resignation” under threat of firing, Morton’s Market does not
    contain the holding that the dissent posits. Even Morton’s Market does not state
    that all resignations constitute effective withdrawal no matter the circumstances.
    In any event, nothing herein should be read as holding that an employee’s
    resignation cannot be an effective withdrawal. All we say here is that under the
    particular factual context and circumstances in this case the district court did not
    err in letting the jury decide whether to believe Valera or Bergman’s version of
    Bergman’s departure from ATC.
    If anything, our precedent in Morton’s Market actually supports affirmance
    here. Morton’s Market involved the owner’s sale of its entire business. In
    contrast, if Valera is believed, Valera took the relevant step here. Bergman ceased
    participation because Valera gave him no choice. Here the jury could reasonably
    31
    Case: 14-14990     Date Filed: 03/24/2017   Page: 32 of 61
    find that Bergman only resigned under threat of firing and that his departure in
    those particular circumstances was not an affirmative step on his part “to disavow
    or defeat” the objectives of the conspiracy.
    Furthermore, this case is more like Arias, where the evidence created a jury
    issue as to withdrawal, just as it does here. In Arias, defendant Dr. Sarduy acted
    “to disavow or defeat” the conspiracy by twice advising the Medicare
    administrator that he was no longer seeing First Option patients and twice
    requesting the cancellation of his Medicare provider number. Viewing the
    evidence in the light most favorable to the government, we cannot say the district
    court erred in letting the jury decide the withdrawal issue and in denying
    Bergman’s motion for a judgment of acquittal.
    C.    Santaya’s Receipt of Kickbacks
    Santaya challenges the denial of his motion for acquittal based on the
    sufficiency of the evidence in support of his conviction for conspiracy to commit
    health care fraud under 
    18 U.S.C. §§ 1347
     and 1349.
    Section 1349 “makes it unlawful to attempt or conspire to commit a § 1347
    crime of health care fraud.” United States v. Moran, 
    778 F.3d 942
    , 960 (11th Cir.
    2015), cert. denied sub nom. Huarte v. United States, 
    136 S. Ct. 268
     (2015).
    Section 1347 makes it unlawful to “knowingly and willfully” engage in a scheme
    (1) “to defraud any health care benefit program” or (2) to use false pretenses to
    32
    Case: 14-14990      Date Filed: 03/24/2017   Page: 33 of 61
    obtain money from “any health care benefit program,” “in connection with the
    delivery of or payment for health care benefits, items, or services.” 
    18 U.S.C. § 1347
    .
    “To sustain the conspiracy conviction under 
    18 U.S.C. § 1349
    , the
    government must prove that (1) a conspiracy existed; (2) the defendant knew of it;
    and (3) the defendant knowingly and voluntarily joined it.” Moran, 778 F.3d at
    960. The government may prove these elements through circumstantial evidence.
    Id. The first element is not at issue in this appeal.
    As for the second element, the government need not prove that the defendant
    knew every aspect of the conspiracy but merely that the defendant knew of the
    “essential nature” of the conspiracy. Id.; United States v. Vernon, 
    723 F.3d 1234
    ,
    1273 (11th Cir. 2013). As for the third element, voluntarily joining, the
    government can meet this burden “‘through proof of surrounding circumstances
    such as acts committed by the defendant which furthered the purpose of the
    conspiracy.’” Moran, 778 F.3d at 961 (quoting Vernon, 723 F.3d at 1274).
    As detailed above, the government introduced ample evidence to uphold
    Santaya’s conviction on Count 1 for conspiracy to commit health care fraud. First,
    the evidence showed that, in exchange for kickbacks, Santaya recruited patients for
    ATC regardless of their medical needs for PHP services. Second, at ATC’s
    instruction, Santaya targeted only patients who were Medicare beneficiaries.
    33
    Case: 14-14990        Date Filed: 03/24/2017   Page: 34 of 61
    Third, also at ATC’s instruction, Santaya coached his Medicare recruits to lie that
    they suffered from symptoms, such as depression and not eating, and to remain
    silent about their bribes while at ATC. Fourth, ATC fraudulently billed Medicare
    for Santaya’s recruits. From this evidence, a reasonable jury could conclude
    (1) that Santaya knew that ATC was fraudulently billing Medicare because he was
    paid to provide, and he in fact provided, ATC with many Medicare beneficiary
    patients who lied about their symptoms in order to qualify for PHP treatment and
    (2) that Santaya knowingly and willfully joined and furthered the conspiracy by
    recruiting patients. While it was not Santaya’s job to fill out the Medicare
    paperwork, it was his job to recruit the Medicare patients for that fraudulent
    Medicare-billing scheme.
    We therefore affirm Santaya’s conviction for conspiracy to commit health
    care fraud under §§ 1347 and 1349.
    III.     JURY SELECTION
    Santaya challenges the decision by the district court and the magistrate
    judge, who conducted voir dire, to deny his motion to strike the entire jury panel.
    As background to this issue, Juror Number 12 had been the victim of credit card
    fraud four times. Defense counsel discussed with Juror Number 12 whether she
    would be able to set aside her own prejudices despite being a victim of fraud.
    34
    Case: 14-14990     Date Filed: 03/24/2017   Page: 35 of 61
    Juror Number 12 indicated that she could not “say for sure” but that she would
    “have to hear and listen to the case.”
    The magistrate judge then asked Juror Number 12 this series of questions:
    BY THE COURT:
    Q. . . . Juror Number 12. So I understand that you’ve been a victim of
    credit card fraud, I think it was four times, and your identity was
    compromised and somebody was making unauthorized charges on
    your credit card.
    Can we agree that those situations, those four credit card situations, as
    far as you know, have absolutely nothing to do with the Medicare
    fraud charges that this trial is going to be about?
    A. (By [Juror Number 12]) Correct.
    Q. All right. So are you telling us that simply because you were
    involved as a victim of credit card fraud, that you’re going to perhaps
    convict a defendant on less evidence than the law requires simply
    because you’ve been a victim of credit card fraud and, my gosh, you
    just have it in for somebody, and therefore, you’re going to unfairly
    convict one of these two defendants?
    A. No, that’s not what I said. I just --
    Q. I know what you said. I’m just following up.
    A. Okay.
    Q. So can you tell us that you would listen to all the evidence in the
    case that would come forth in this trial before making a decision?
    A. Of course.
    Q. Do you think that your experience in being a victim of credit card
    fraud four times would mean that you couldn’t follow the instructions
    that the judge would give you?
    35
    Case: 14-14990     Date Filed: 03/24/2017    Page: 36 of 61
    A. No.
    Q. So if the judge were to say to you, in order to convict these
    defendants, the Government has to prove its case beyond a reasonable
    doubt, would you be able to follow that instruction?
    A. Yes.
    Q. And if the Government didn’t meet that instruction, would you be
    finding that defendant guilty anyway simply because some time in
    your history you were a victim four times of credit card fraud?
    A. No.
    Q. So now that you think about it, would you be able to be a fair juror
    and follow the judge’s instructions even though you’re upset about
    being a victim of credit card fraud, in particular four times, and in
    general upset with the whole subject matter of fraud?
    A. Yes.
    Santaya argues that, in this exchange, the magistrate judge berated the juror and
    precluded the rest of the jury panel from being truthful about their ability to be
    unbiased.
    “We review the district court’s determination whether to strike an entire jury
    panel for manifest abuse of discretion.” United States v. Trujillo, 
    146 F.3d 838
    ,
    842 (11th Cir. 1998). “The party challenging the refusal to strike a panel must
    demonstrate that the juror in question exhibited actual bias: That is, either an
    express admission of bias, or proof of specific facts showing such a close
    connection to the circumstances of the case that bias must be presumed.” 
    Id. at 842-43
     (quotation marks omitted).
    36
    Case: 14-14990     Date Filed: 03/24/2017    Page: 37 of 61
    Here, the district court and magistrate judge did not abuse their discretion by
    not striking the entire jury panel. Simply put, Santaya has not demonstrated any
    bias on behalf of Juror Number 12 or any other member of the jury. See Trujillo,
    
    146 F.3d at 842-43
    . The magistrate judge’s questioning properly inquired into
    how Juror Number 12’s past experiences would affect her decision-making in
    specific ways. The questioning revealed that the juror could serve fairly. The
    transcript also does not indicate that the magistrate judge’s questioning prevented
    any other jurors from speaking about their biases. Indeed, defense counsel had
    already extensively questioned several jurors about their potential biases from
    having been victims of fraud. Even if the magistrate judge’s questioning had some
    imperfections, it was not an abuse of discretion for the district court or the
    magistrate judge to deny Santaya’s request to strike the entire panel.
    IV.    ADMISSION OF EVIDENCE
    A.    Intimate Relationships at ATC
    Bergman next claims that the district court erred in restricting his cross-
    examination of Valera about intimate relationships between ATC’s employees.
    Similarly, Santaya contends that the district court improperly limited his cross-
    examination of Acevedo and Special Agent Ellen Thomas about those intimate
    relationships.
    37
    Case: 14-14990       Date Filed: 03/24/2017       Page: 38 of 61
    We review a district court’s evidentiary rulings for abuse of discretion.
    United States v. Lankford, 
    955 F.2d 1545
    , 1548 (11th Cir. 1992). 4 While the trial
    court has broad discretion to determine the scope of cross-examination, that
    discretion is limited by the Sixth Amendment, which guarantees the right of
    confrontation, including the right of cross-examination. 
    Id.
     The district court’s
    limitation of cross-examination does not infringe on the defendant’s Sixth
    Amendment rights when (1) the jury heard sufficient facts for it to draw inferences
    relating to the credibility of the witness and (2) the cross-examination elicited
    sufficient evidence to allow the defense counsel to argue why the witness might
    have been biased. 
    Id. at 1556
    .
    Here, we find no Sixth Amendment violation. The district court allowed
    both Bergman and Santaya to conduct ample cross-examination to argue their
    defenses. For example, the jury heard that Valera dated Duran and that Duran had
    an affair with Acevedo and Jimenez. Bergman’s counsel questioned Valera
    repeatedly about how she could now trust Jimenez and Acevedo since she knew
    that they cheated with her boyfriend. The jury also heard that Acevedo and
    Jimenez knew each other through mutual friends before Jimenez came to work at
    ATC and that Acevedo, Jimenez, and Duran had a separate lunch meeting prior to
    4
    The government maintains that we should review Santaya’s argument for plain error
    because Santaya did not assert this argument at trial. We need not decide this issue because there
    was no abuse of discretion in any event.
    38
    Case: 14-14990     Date Filed: 03/24/2017   Page: 39 of 61
    hiring Jimenez. Santaya elicited admissions that Jimenez recruited patients on her
    own, in violation of ATC’s rules, and paid herself kickbacks for doing so. Santaya
    also elicited admissions that Jimenez supplied false information about the source of
    those patients she recruited, creating inaccuracies in the MPL. Jimenez also
    admitted to lying to federal agents.
    The jury heard enough evidence to draw inferences about the witnesses’
    credibility and for defense counsel to create a record of the witnesses’ possible
    biases. This evidence allowed Bergman’s defense counsel to argue that Bergman
    was an outsider from this core group of conspirators. The evidence also allowed
    Santaya’s defense counsel to argue that Acevedo and Jimenez had a special
    relationship, which explained why they would lie for each other. The jury also had
    sufficient evidence to question the truth of the witnesses’ testimony as well as the
    accuracy of the MPL. Thus, both Bergman and Santaya had a full opportunity to
    confront the witnesses against them, and no Sixth Amendment violation occurred.
    See Lankford, 
    955 F.2d at 1556
    . Because we conclude the defendants had
    adequate opportunity to cross-examine the witnesses, we need not decide what
    testimony was technically admissible or inadmissible.
    B.    Medicare Coverage Rules
    Bergman argues that the district court improperly admitted lay opinion
    testimony by Stephen Quindoza about Medicare’s coverage rules. Quindoza has
    39
    Case: 14-14990      Date Filed: 03/24/2017    Page: 40 of 61
    worked for thirty years as a health care fraud investigator and Medicare claims
    administrator. Quindoza testified extensively about Medicare’s coverage of PHP
    services, which patients qualify for PHP treatment, and under what circumstances
    Medicare would and would not pay for PHP treatment.
    Generally, “[t]he district court’s evidentiary rulings, including the admission of
    [lay] witness testimony under Federal Rule of Evidence 701, are reviewed for
    abuse of discretion.” Moran, 778 F.3d at 958–59. When, as here, the defendant
    did not object to the testimony at trial, we review the admission of the testimony
    for plain error. United States v. Hall, 
    314 F.3d 565
    , 566 (11th Cir. 2002). Plain
    error is a more exacting standard. Moran, 778 F.3d at 967.
    Plain error occurs where “there is: (1) error, (2) that is plain, and (3) that
    affects substantial rights.” United States v. Shelton, 
    400 F.3d 1325
    , 1329 (11th
    Cir. 2005) (quoting United States v. Rodriguez, 
    398 F.3d 1291
    , 1297 (11th Cir.
    2005)). If these three conditions are met, an appellate court then has “discretion to
    notice a forfeited error” if “the error seriously affects the fairness, integrity, or
    public reputation of judicial proceedings.” 
    Id.
     (quoting Rodriguez, 398 F.3d at
    1297). The third prong means “in most cases . . . that the error must have been
    prejudicial.” United States v. Olano, 
    507 U.S. 725
    , 734, 
    113 S. Ct. 1770
    , 1778
    (1993). The defendant, rather than the government, “bears the burden of
    persuasion with respect to prejudice.” 
    Id.
     Thus, “the defendant’s burden with
    40
    Case: 14-14990     Date Filed: 03/24/2017    Page: 41 of 61
    respect to prejudice is to show that the error ‘actually did make a difference’” in
    the outcome of the proceedings. Shelton, 
    400 F.3d at 1332
     (quoting Rodriguez,
    398 F.3d at 1300); see also Olano, 
    507 U.S. at 734
    , 
    113 S. Ct. at 1778
    .
    This Court previously addressed the admission of similar testimony by
    Quindoza, who testified as a lay witness in another trial involving ATC’s scheme.
    United States v. Willner, 
    795 F.3d 1297
    , 1316 (11th Cir. 2015). There we
    reviewed the admission of Quindoza’s testimony for abuse of discretion because
    the defendants objected at trial. 
    Id.
     In Willner, we found that the district court
    abused its discretion in permitting Quindoza’s testimony because (1) Quindoza
    was not disclosed as an expert witness, and (2) Quindoza offered expert testimony
    based on specialized knowledge when he “testified in the form of opinions on a
    number of issues involving how Medicare functions and what Medicare would do
    in a number of hypothetical circumstances.” 
    Id. at 1318
    . We concluded, however,
    that the district court committed only a harmless error in admitting that testimony
    because the remaining evidence “overwhelmingly” demonstrated that the
    defendants conspired to commit health care fraud. 
    Id. at 1322
    .
    For two reasons this case is not like Willner. First, we review the admission
    of Quindoza’s testimony not for abuse of discretion but for plain error. Second,
    the government provided notice that they would call an expert witness to testify
    about Medicare’s coverage rules about admissions, disclosures, patients, treatment,
    41
    Case: 14-14990       Date Filed: 03/24/2017      Page: 42 of 61
    proper billing, the LCD in effect for ATC, and analysis of ATC’s claims data.
    Although that notice did not specifically name Quindoza, the notice indicated that
    (1) the government maintained its position that such witness testimony “constitutes
    lay witness testimony” but, if not, (2) the government was giving notice out of an
    abundance of caution that a portion of the testimony may later be deemed expert
    witness testimony within the scope of Federal Rule of Evidence 702, which is the
    expert witness rule. Because the government disclosed the witness as both a lay
    witness, or alternatively as an expert witness, we cannot say that the district court
    plainly erred by allowing Quindoza to testify. 5
    V.     PROSECUTORIAL MISCONDUCT
    Santaya alone claims that the government improperly prejudiced the jury in
    three distinct ways: (1) shifting the burden of proof onto both defendants by asking
    Bergman on cross-examination why he had not produced his yellow notepads or
    testimony from Dr. Ayala to support his story; 6 (2) stating during the closing
    argument that the defendants had “the gall, the audacity and temerity” to tell the
    5
    Notably too, much of Quindoza’s testimony summarized the LCD, which was admitted
    into evidence. Other witnesses besides Quindoza, including the government’s expert witness on
    PHPs, testified about which patients were suitable for PHP treatment. Other witnesses also
    testified about how ATC drafted notes and documentation in order to make it appear to Medicare
    that ATC was complying with Medicare’s coverage requirements.
    6
    Santaya further argues that because the government spoke generally about “the
    defendants” at times during closing argument, any burden-shifting comments about Bergman
    were also prejudicial to himself.
    42
    Case: 14-14990     Date Filed: 03/24/2017    Page: 43 of 61
    jury “that they weren’t part of it and it just didn’t happen”; and (3) arguing facts
    not in evidence during closing by saying that Santaya bought the patients’ silence.
    Because Santaya failed to object to any of these statements, we review for
    plain error. United States v. Rivera, 
    780 F.3d 1084
    , 1090 (11th Cir. 2015). “To
    find prosecutorial misconduct, a two-element test must be met: (1) the remarks
    must be improper, and (2) the remarks must prejudicially affect the substantial
    rights of the defendant.” United States v. Reeves, 
    742 F.3d 487
    , 505 (11th Cir.
    2014) (quotation marks omitted).
    Here, none of the alleged conduct constituted plain error that prejudicially
    affected Santaya’s substantial rights. First, the few above questions to Bergman
    were isolated and far from permeating the entire trial. See United States v. Simon,
    
    964 F.2d 1082
    , 1086 (11th Cir. 1992) (explaining that prosecutorial misconduct
    must permeate the entire atmosphere of the trial); see also United States v. Paul,
    
    175 F.3d 906
    , 912 (11th Cir. 1999) (finding no prejudice to substantial rights when
    the government only pointed out that the defendant had an opportunity to present
    evidence, the lawyers and the court reminded the jury that the government had the
    burden of proof, and the district court gave an instruction on the burden of proof).
    The government’s cross-examination questions had nothing to do with the weight
    of the evidence against Santaya. The district court gave jury instructions
    explaining that the government has the burden of proof and that a criminal
    43
    Case: 14-14990     Date Filed: 03/24/2017    Page: 44 of 61
    defendant does not have to testify, produce any evidence, or prove his innocence.
    Such an instruction was curative here. See United States v. Hernandez, 
    145 F.3d 1433
    , 1439 (11th Cir. 1998); Simon, 
    964 F.2d at 1087
    .
    Second, the government’s single statement about Santaya defending his
    innocence did not unfairly prejudice Santaya for exercising his constitutional right
    to a trial. It is improper for a prosecutor to attempt to inflame the jury by
    appealing to such passions or prejudices instead of to reason and to the law.
    Cunningham v. Zant, 
    928 F.2d 1006
    , 1020 (11th Cir. 1991). In Cunningham, this
    Court deemed comments by a prosecutor indicating that he was “offended” by the
    defendant exercising his Sixth Amendment right to trial by cross-examining
    witnesses to be not only improper but “outrageous.” 
    Id. at 1019
    .
    The government’s comment here, although improper, was only one sentence
    and did not specifically mention a right to a jury trial or the defendant’s cross-
    examination of witnesses. Given the abundant evidence supporting the defendants’
    guilt, this lone comment is not enough to reverse the jury’s verdict.
    Third, read in context, the prosecutor’s challenged comment about silence
    clearly referred to Santaya paying his recruits for their silence while at ATC, not
    for their silence at trial. The government presented evidence that Santaya bribed
    patients and coached them to remain silent about their bribes while at ATC. This
    44
    Case: 14-14990      Date Filed: 03/24/2017    Page: 45 of 61
    comment was consistent with the evidence and did not affect the outcome of
    Santaya’s trial.
    VI.   SENTENCES
    “This Court reviews de novo the district court’s interpretation of the
    guidelines and its application of guidelines to the facts. Findings of fact by the trial
    court at sentencing, however, are reviewed for only clear error.” Moran, 778 F.3d
    at 959.
    A.    Bergman’s Sentence
    Bergman appeals his 180-month prison sentence, arguing it exceeds the
    length necessary to comply with the purposes of 
    18 U.S.C. § 3553
    (a). Bergman’s
    advisory guidelines range was life imprisonment. U.S.S.G. § 5A n.2. Because his
    statutory maximum was a 300-month prison term, that became his recommended
    guidelines sentence. See 
    18 U.S.C. §§ 371
    , 1343, 1349; U.S.S.G. § 5G1.2(d). The
    government recommended a 200-month term of imprisonment. Bergman
    requested 72 months, or a maximum of ten years. The district court sentenced
    Bergman to 180 months in prison.
    We first review whether the district court committed significant procedural
    error and then determine whether the imposed sentence was substantively
    reasonable in light of the totality of the circumstances. United States v. Croteau,
    
    819 F.3d 1293
    , 1309 (11th Cir. 2016), cert. denied, 
    137 S. Ct. 254
     (2016). The
    45
    Case: 14-14990       Date Filed: 03/24/2017       Page: 46 of 61
    party challenging the sentence bears the burden of showing that the district court
    imposed an unreasonable sentence in light of the record and the § 3553(a) factors.
    Id.
    Here, Bergman challenges only the substantive reasonableness of his
    sentence. “[T]he district court must impose a sentence sufficient, but not greater
    than necessary, to comply with the purposes listed in 
    18 U.S.C. § 3553
    (a)(2).” 7 
    Id.
    The district court has discretion to weigh the various factors and to apply a
    variance. 
    Id.
    The district court’s below-guidelines 180-month sentence was not
    substantively unreasonable. For five years, Bergman played a key role in
    perpetuating an illegal scheme that fraudulently billed Medicare for nearly $200
    million. His efforts enabled his co-conspirators to submit falsified medical
    documentation substantiating their claims to Medicare.
    Bergman notes that Dr. Ayala, his boss at ATC, received only a 120-month
    sentence. Dr. Ayala’s conviction, however, had a statutory maximum prison
    7
    The relevant factors include “the need to reflect the seriousness of the offense, promote
    respect for the law, provide just punishment for the offense, deter criminal conduct, and protect
    the public.” Croteau, 819 F.3d at 1309. “The district court must also consider the nature and
    circumstances of the offense, the history and characteristics of the defendant, the kinds of
    sentences available, the applicable guidelines range, the pertinent policy statements of the
    Sentencing Commission, the need to avoid unwarranted sentencing disparities, and the need to
    provide restitution to victims.” Id.
    46
    Case: 14-14990       Date Filed: 03/24/2017      Page: 47 of 61
    sentence of 120 months, and he received the maximum. 8 Bergman’s statutory
    maximum prison sentence was 300 months. See 
    18 U.S.C. §§ 371
    , 1343, 1349;
    U.S.S.G. § 5G1.2(d). Bergman received a significant downward variance from his
    300-month advisory guidelines sentence. Bergman personally saw more patients
    than Dr. Ayala and testified that he was physically present at ATC more frequently
    than Dr. Ayala. Bergman thus could be considered more culpable than Dr. Ayala.
    Bergman has not demonstrated that he received a disparate sentence from a
    similarly situated co-conspirator.
    The district court properly exercised its discretion by sentencing Bergman to
    a 180-month prison term, which is well below his guidelines sentence of 300
    months. Doing so did not exceed the purposes of the § 3553(a) factors. We
    therefore affirm Bergman’s sentence.
    B.     Santaya’s Sentence
    Santaya’s offense level of 38 and criminal history category of I yielded an
    advisory guidelines range of 235 to 293 months in prison. His total offense level
    of 38 consisted of: (1) a base offense level of 31, (2) a two-level increase because
    he knew or should have known that the victim was a vulnerable victim under
    U.S.S.G. § 3A1.1(b)(1), (3) a two-level increase for a large number of vulnerable
    8
    Dr. Ayala was convicted of only conspiracy to commit health care fraud, which carries a
    lower statutory maximum sentence than Bergman’s conviction for conspiracy to commit health
    care fraud and wire fraud. See 
    18 U.S.C. §§ 1343
    , 1347, 1349.
    47
    Case: 14-14990     Date Filed: 03/24/2017    Page: 48 of 61
    victims under U.S.S.G. § 3A1.1(b)(2), and (4) a three-level increase because he
    was a manager or supervisor of at least one other participant and the criminal
    activity involved five or more participants or was otherwise extensive under
    U.S.S.G. § 3B1.1(b). The government recommended a 150-month prison sentence,
    and the district court sentenced Santaya to 150 months.
    Santaya argues the district court erred in its offense level calculations by
    applying both the vulnerable victim increases and the manager or supervisor
    increase. Santaya contends that the patients cannot be both victims and co-
    conspirators whom he managed.
    “The district court’s application of the vulnerable victim enhancement
    presents a mixed question of law and fact, which this Court reviews de novo.”
    Moran, 778 F.3d at 959. We review the district court’s determination of Santaya’s
    role for clear error. United States v. Jennings, 
    599 F.3d 1241
    , 1253 (11th Cir.
    2010).
    In Moran, this Court explained that “[a] ‘vulnerable victim’ is a person ‘who
    is a victim of the offense of conviction,’ and ‘who is unusually vulnerable due to
    age, physical or mental condition, or who is otherwise particularly susceptible to
    the criminal conduct.’” Moran, 778 F.3d at 978 (quoting U.S.S.G. § 3A1.1, cmt.
    n.2). Some of the patients at ATC did not participate in the illegal scheme and
    were vulnerable victims. Specifically, Valera testified that ATC had patients who
    48
    Case: 14-14990     Date Filed: 03/24/2017    Page: 49 of 61
    actually needed help but did not receive it. Some patients had memory problems
    such as dementia. Others were substance abusers. These patients were vulnerable
    victims. See Moran, 778 F.3d at 978–79. Even if Santaya himself did not recruit
    all of these patients who were vulnerable victims, the district court properly
    applied the increase because he “knew or should have known that the victims of
    [ATC’s] scheme were vulnerable” and because he was part of the illegal scheme.
    United States v. Birge, 
    830 F.3d 1229
    , 1233 (11th Cir. 2016).
    On the other hand, some ATC patients did participate in the illegal scheme.
    Generally, patient recruiters in a Medicare fraud scheme, like Santaya, play more
    than a minor role because their conduct is central to the scheme and to the
    scheme’s ability to bill Medicare. Moran, 778 F.3d at 980. In this case, Santaya
    supplied the Medicare beneficiary patients who were crucial to ATC’s scheme.
    Santaya also exercised control over the patients by coaching them on lying about
    their symptoms and how to behave at ATC. These patients were often participants
    in the illegal scheme because they received kickbacks and feigned acute
    psychiatric illnesses. The district court thus had the discretion to apply this three-
    level increase because Santaya supervised these patients he recruited.
    The manager or supervisor and the vulnerable victim increases are not
    mutually exclusive. There is nothing contradictory about finding that Santaya
    managed some patients participating in the illegal scheme, while taking advantage
    49
    Case: 14-14990       Date Filed: 03/24/2017       Page: 50 of 61
    of other vulnerable victims. Valera testified that both willing and vulnerable
    victims attended ATC. We therefore affirm Santaya’s sentence.
    VII. OTHER CLAIMS ON APPEAL
    Bergman argues the district court erred by permitting the government to
    cross-examine him about a separate Medicare fraud conspiracy in South Florida at
    Hollywood Pavilion. Bergman testified that he did not know anything about
    Hollywood Pavilion because it was located in Fort Lauderdale, not Miami. The
    government then stopped questioning him.
    The district court did not abuse its discretion by allowing this testimony and
    refusing to grant a mistrial. The testimony the government sought to elicit was
    relevant and was not substantially outweighed by any of the risks outlined in
    Federal Rule of Evidence 403. See Fed. R. Evid. 403. Moreover, the testimony
    did not prejudice Bergman because he testified he was unaware of what happened
    at Hollywood Pavilion, and the government did not ask him if he was involved in
    their conspiracy. 9
    We also reject Santaya’s argument that the district court strayed from the
    required neutrality by improperly giving a curative instruction and impinging on
    his Sixth Amendment right to trial by an impartial jury. The district court’s
    9
    Bergman also contends that the district court abused its discretion by assisting a witness,
    Dana Gonzalez, with identifying Bergman by asking an arguably suggestive question. Because
    Bergman did not object at trial, we review for plain error, which Bergman has not shown.
    50
    Case: 14-14990     Date Filed: 03/24/2017    Page: 51 of 61
    curative instruction—to disregard the remark that Santaya’s liberty was on the
    line—caused no prejudice to Santaya because it is a correct statement of law. The
    jury’s role is to determine guilt or innocence and it should reach its verdict without
    regard to the potential sentence imposed. Shannon v. United States, 
    512 U.S. 573
    ,
    579, 
    114 S. Ct. 2419
    , 2424 (1994). None of Santaya’s remaining arguments with
    respect to statements by the district court merit further discussion, and there is no
    reversible error on these grounds.
    We further reject Santaya’s argument that the district court erred by not
    excluding the MPL as inadmissible hearsay. The MPL documented key aspects of
    ATC’s business, including the patient referral source, and was therefore admissible
    against any defendant who was a co-conspirator. ATC’s intake coordinators
    created the MPL based on information given to them by other ATC employees,
    and the district court did not abuse its discretion in determining that the intake
    coordinators and other ATC’s employees were Santaya’s co-conspirators.
    Alternatively, the MPL constitutes a business record that falls within an
    exception to the rule against hearsay. Fed. R. Evid. 803(6). Here, Valera testified
    about the procedures used to create the MPL and explained how the MPL was a
    critical part of ATC’s operations. The trial testimony also showed that the intake
    coordinators obtained the information recorded in the MPL about patient referral
    sources from persons with personal knowledge of those sources, such as Jimenez.
    51
    Case: 14-14990    Date Filed: 03/24/2017   Page: 52 of 61
    The MPL was thus admissible as ATC’s business records. The fact that Acevedo
    admitted that she gave false information for the ATC intake coordinators to enter
    into the MPL goes to the weight the jury should give the MPL, not its
    admissibility. Santaya’s remaining arguments about the district court’s evidentiary
    rulings lack merit.
    VIII. CONCLUSION
    Based on the foregoing reasons, we affirm the convictions and sentences of
    Bergman and Santaya.
    AFFIRMED.
    52
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    MARTIN, Circuit Judge, concurring in part and dissenting in part:
    I agree with almost all of the Majority’s opinion. On the issue of Mr.
    Bergman’s conspiracy convictions, however, I read this circuit’s precedent to
    require a holding that Mr. Bergman withdrew from the conspiracy more than five
    years before he was charged with that crime. Since this is beyond the period of
    limitations, I understand that Mr. Bergman’s conspiracy convictions are due to be
    vacated, as a matter of law.
    Mr. Bergman resigned from ATC in 2008. He was not indicted until 2014.
    Our precedent says that resignation is sufficient to constitute withdrawal from a
    conspiracy. And because Mr. Bergman withdrew outside of the five-year statute of
    limitations, withdrawal is a complete defense as a matter of law. The Majority
    misreads our precedent and now imposes a new requirement. The Majority
    opinion requires undisputed evidence of voluntary conduct in order to effectively
    withdraw from a conspiracy in this circuit. Because this new requirement is not
    faithful to our precedent, I cannot fully join the Majority’s opinion.
    I.
    Withdrawal is an affirmative defense for which Mr. Bergman bears the
    burden of proof, and which he must carry by a preponderance of the evidence.
    Smith v. United States, 568 U.S. ___, 
    133 S. Ct. 714
    , 719–20 & n.5 (2013). It is a
    “complete defense when the withdrawal occurs beyond the applicable statute-of-
    53
    Case: 14-14990    Date Filed: 03/24/2017    Page: 54 of 61
    limitations period.” 
    Id. at 719
    . The statute of limitations here is five years. See 
    18 U.S.C. § 3282
    (a). Mr. Bergman resigned in 2008 and was not charged until 2014.
    So if he effectively withdrew in 2008, then his participation in the conspiracy was
    beyond the reach of the limitations period and his convictions must be vacated.
    Our circuit precedent requires Mr. Bergman to show: “(1) that he has taken
    affirmative steps, inconsistent with the objectives of the conspiracy, to disavow or
    to defeat the objectives of the conspiracy; and (2) that he made a reasonable effort
    to communicate those acts to his co-conspirators or that he disclosed the scheme to
    law enforcement authorities.” United States v. Starrett, 
    55 F.3d 1525
    , 1550 (11th
    Cir. 1995). There is no dispute that Mr. Bergman communicated his resignation to
    his co-conspirators in this case. He told them and mailed them a written
    resignation letter.
    The only question, then, is whether the first prong of our circuit’s
    withdrawal test was met as a matter of law. In order to satisfy the first prong of the
    withdrawal test, the defendant must show “repudiation” by some affirmative step.
    See United States v. Dabbs, 
    134 F.3d 1071
    , 1083 (11th Cir. 1998). “A mere
    cessation of activity in the conspiracy is not sufficient to establish withdrawal.”
    United States v. Finestone, 
    816 F.2d 583
    , 589 (11th Cir. 1987). The Majority
    characterizes Mr. Bergman’s actions as a mere cessation of participation. Maj. Op.
    at 31–32, 34. But this Court has said that “[r]esignation from the conspiring
    54
    Case: 14-14990     Date Filed: 03/24/2017     Page: 55 of 61
    business has frequently been held to constitute effective withdrawal.” Morton’s
    Mkt., Inc. v. Gustafson’s Dairy, Inc., 
    198 F.3d 823
    , 839 (11th Cir. 1999), amended
    in part 
    211 F.3d 1224
     (11th Cir. 2000). Indeed, in Morton’s Market, this Court
    opined that “[a] conspirator unquestionably disavows the conspiracy . . . when he
    resigns his employment” or “permanently sever[s] his employment relationship.”
    
    Id.
     (quotation omitted and alteration adopted). So long as “[t]he conspirator’s
    break with the other conspirators [was] both clean and permanent,” and the co-
    conspirators are notified of it, withdrawal is effective in this circuit. 
    Id.
    II.
    The Majority holds that the manner in which Mr. Bergman left ATC created
    a factual dispute for the jury to decide. But this does not comport with our
    precedent. Our caselaw says that choosing to resign is enough to withdraw from a
    conspiracy as a matter of law. Although there was indeed conflicting testimony
    about the circumstances of Mr. Bergman’s departure, everyone agrees, at a
    minimum, that Mr. Bergman chose to resign. Neither the contrary arguments of
    the government nor those relied upon by the Majority are persuasive.
    The government argues because Mr. Bergman was asked to resign, the jury
    could have inferred “ATC did not know in 2008 that Bergman would no longer
    lend his services to perpetuate the fraud.” Although credibility determinations are
    indeed left to the jury, see United States v. Flores, 
    572 F.3d 1254
    , 1263 (11th Cir.
    55
    Case: 14-14990     Date Filed: 03/24/2017   Page: 56 of 61
    2009), there is nothing in the record that the jury could have relied on to support
    the government’s assertion. No one from ATC, or anywhere else, testified that
    they thought Mr. Bergman might return to the conspiracy.
    The Majority has articulated a new theory upon which to affirm Mr.
    Bergman’s conviction. It points to Ms. Valera’s testimony that ATC gave Mr.
    Bergman the opportunity to resign, saying this creates a jury question. Because
    Ms. Valera’s statement conflicted with Mr. Bergman’s testimony about whether he
    chose to resign on his own or chose to resign after being asked to, so goes the
    Majority’s logic, the jury was free to choose between these alternatives. Maj. Op.
    at 31–32.
    But the result is the same either way. Mr. Bergman chose to resign. The
    Majority itself recognizes that Ms. Valera testified “it was customary at [ATC] to
    give employees that you wanted to terminate an opportunity to resign before they
    were fired.” Maj. Op. at 16 (emphasis added). So even under Ms. Valera’s
    version of events, Mr. Bergman had a choice before him. He could resign or be
    fired. He made his choice voluntarily, resulting in the affirmative step that Mr.
    Bergman took to withdraw. The Majority says that “Bergman ceased participation
    because Valera gave him no choice.” Maj. Op. at 34. But the Majority’s own
    statement of the facts, which is taken in the light most favorable to the government,
    recognizes the very choice, or “opportunity,” that Ms. Valera gave to Mr.
    56
    Case: 14-14990     Date Filed: 03/24/2017   Page: 57 of 61
    Bergman. Id. at 16. In this way, the Majority ignores the reality it highlights.
    Applying our circuit’s precedent, it seems clear as a matter of law that Mr.
    Bergman took an affirmative step, inconsistent with the conspiracy, to defeat it—
    he resigned. See Starrett, 
    55 F.3d at 1550
    ; Morton’s Market, 
    198 F.3d at 839
    . He
    also communicated this affirmative step to his co-conspirators by telling them he
    resigned and then mailing them a written resignation letter. See 
    id.
     The Majority’s
    version of events acknowledges the truth of this.
    *******
    The Majority points to two cases to support its decision to affirm Mr.
    Bergman’s sentence. In Morton’s Market, this Court evaluated whether a dairy
    company had withdrawn from a milk price-fixing conspiracy by selling its dairy.
    
    198 F.3d at
    826–27. The issue, we said, was “whether [the company’s] sale of its
    dairy, without more, effectively withdrew it from the milk price-fixing conspiracy,
    or whether some further affirmative step was required to end its liability.” 
    Id. at 839
    . We recognized “the law has given effect to a conspirator’s abandonment of
    the conspiracy only where the conspirator can demonstrate that he retired from the
    business, severed all ties to the business, and deprived the remaining conspirator
    group of the services which he provided to the conspiracy.” 
    Id.
    The Morton’s Market panel said “[r]esignation from the conspiring business
    has frequently been held to constitute effective withdrawal,” and then analyzed
    57
    Case: 14-14990     Date Filed: 03/24/2017   Page: 58 of 61
    whether the dairy company’s actions reached that level. See 
    id.
     It reasoned that
    after selling the dairy, the company “did nothing more to assist or participate in the
    price-fixing activities of the other dairies.” 
    Id.
     And because the media reported
    the sale, it was communicated to the co-conspirators that “from that time on, [the
    company] would not lend its services to the conspiracy.” 
    Id.
     On those facts, our
    Court concluded the dairy company “did effectively withdraw from the price-
    fixing conspiracy upon the sale of its dairy.” 
    Id.
    The Majority is quite right that Morton’s Market controls the outcome of
    this case. But it requires the opposite result. Just like with the dairy company,
    after his resignation Mr. Bergman “did nothing more to assist or participate” in the
    conspiracy. And he did far more than just rely on the media to communicate this
    to his co-conspirators. He resigned and even sent in a written resignation letter.
    The panel in Morton’s Market could not have been more clear that resignation is
    sufficient to constitute withdrawal in this circuit. And nowhere does the decision
    distinguish between “types” of resignation—that is, being asked to resign or
    coming up with the idea on one’s own. In fact, resignation was the panel’s gold
    standard in determining whether the dairy company had effectively withdrawn
    from a business conspiracy.
    Although the Majority cites the holding of Morton’s Market, it does not
    apply it. It says the Morton’s Market holding was that an owner’s “sale of its
    58
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    entire business and exit from the dairy business constituted withdrawal.” Maj. Op.
    at 33. Although the Majority goes deep into the facts of Morton’s Market, it never
    explains why the legal reasoning of the opinion does not control here. Morton’s
    Market held that withdrawal was effective as a matter of law when an owner
    severed ties to the conspiracy and the co-conspirators “knew that from that time
    on” the owner would no longer “lend its services to the conspiracy.” 
    198 F.3d at 839
    . I find nothing convincing in the Majority’s explanation for why the same
    result does not follow in Mr. Bergman’s case. The statement that “[a]ll we say
    here” is that it’s best left to the jury under the circumstances simply does not
    explain the failure to apply our circuit’s precedent. Maj. Op. at 34.
    The Majority also points to United States v. Arias, 
    431 F.3d 1327
     (11th Cir.
    2005), saying that Mr. Bergman’s case “is more like Arias” than Morton’s Market
    anyway. Maj. Op. at 32. But Arias addressed an entirely different issue than the
    one presented here. Arias was about whether there was sufficient evidence to
    require a jury instruction on withdrawal, not whether a defendant withdrew as a
    matter of law. See 
    id.
     at 1339–42. And the inquiry in Arias was more fact
    intensive and therefore appropriate for a jury. The defendant in Arias never
    formally resigned—he simply stopped seeing patients in a Medicare fraud scheme
    and told an insurance company. 
    Id.
     The Majority points out that the defendant in
    Arias deserved a jury instruction about withdrawal and therefore had his conviction
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    vacated. Maj. Op. at 28–29, 32. But then it reasons that because of this, Mr.
    Bergman cannot win on an issue the panel in Arias never even addressed. This
    result is hard to explain, and impossible for me to accept.
    III.
    The Majority’s ruling today is not faithful to our precedent. Instead, the
    Majority seems to have ignored our circuit’s test for withdrawal and abandoned
    our two-prong test. The Majority has imposed a new, third requirement:
    undisputed voluntariness. We all agree that the result in Mr. Bergman’s case is
    controlled by Morton’s Market, the law of this circuit. See United States v. Smith,
    
    122 F.3d 1355
    , 1359 (11th Cir. 1997) (per curiam) (“Under the prior panel
    precedent rule, we are bound by earlier panel holdings, . . . unless and until they
    are overruled en banc or by the Supreme Court.”). The Majority tries to
    distinguish Morton’s Market by pointing out that in that case, a business was sold,
    but here, Mr. Bergman “only resigned under threat of firing.” Maj. Op. at 32–34.
    The Majority argues that therefore it was Ms. Valera who took the affirmative step,
    not Mr. Bergman. Id. at 32.
    Yet I have found no case in this circuit requiring an exploration of the
    defendant’s motive in taking an affirmative step and concluding that such conduct
    was voluntary. Nor have I located precedent that requires the step be taken alone.
    There are certainly no cases that tell us what these new requirements from the
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    Majority mean. Indeed, adding this voluntariness requirement creates fact
    questions in every case with a defendant who withdrew from criminal conduct:
    Was the affirmative step truly voluntary? Was the withdrawal taken under threat,
    coercion, or duress? Did the defendant withdraw alone or did anyone else
    influence his decision to do so? Finally on this point, I can find no cases that
    distinguish being asked to resign from resigning on one’s own accord. Yet the
    Majority requires proof of that distinction here. Maj. Op. at 32. On this record,
    Mr. Bergman has met our circuit’s longstanding test for withdrawing from a
    conspiracy. His convictions for conspiracy are therefore due to be vacated, and I
    dissent to the Majority’s failure to do so.
    IV.
    As a final note, I add that nothing in the Majority’s opinion should be
    construed to in any way overrule or abrogate our precedent in Morton’s Market.
    Indeed I take the Majority’s words at face value: “[N]othing herein should be read
    as holding that an employee’s resignation cannot be an effective withdrawal.”
    Maj. Op. at 34.
    61