United States v. Umawa Oke Imo , 739 F.3d 226 ( 2014 )


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  •      Case: 11-20791    Document: 00512491278     Page: 1   Date Filed: 01/07/2014
    IN THE UNITED STATES COURT OF APPEALS
    FOR THE FIFTH CIRCUIT
    United States Court of Appeals
    Fifth Circuit
    FILED
    No. 11-20791                       January 7, 2014
    Lyle W. Cayce
    UNITED STATES OF AMERICA,                                                  Clerk
    Plaintiff-Appellee,
    v.
    UMAWA OKE IMO; CHRISTINA JOY CLARDY; KENNETH IBEZIM
    ANOKAM,
    Defendants-Appellants.
    Appeals from the United States District Court
    for the Southern District of Texas
    Before STEWART, Chief Judge, and DeMOSS and CLEMENT, Circuit Judges.
    CARL E. STEWART, Chief Judge:
    This appeal arises from the conviction of Defendants-Appellants Umawa
    Oke Imo, Christina Joy Clardy, and Kenneth Ibezim Anokam for their
    involvement in a health care fraud scheme. Defendants-Appellants challenge
    the district court’s refusal to give a requested limiting instruction during trial
    and the final jury charge. Clardy contends that there is insufficient evidence
    to support her conviction for health care fraud, conspiracy to commit health
    care fraud, and mail fraud. Clardy also raises three evidentiary challenges. In
    addition, Clardy and Anokam challenge the district court’s application of a
    sentencing enhancement based on their intended loss, and Anokam argues
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    that the district court erroneously imposed a sentencing enhancement for mass
    marketing. 1 We AFFIRM Defendants-Appellants’ convictions and sentences.
    I.      FACTUAL BACKGROUND AND PROCEDURAL HISTORY 2
    A. Factual Background
    1. City Nursing Services of Texas (“CNS”)
    Imo owned CNS, an alleged physical therapy clinic in Houston, Texas.
    In May 2006, he submitted an application to Medicare on behalf of CNS; both
    Imo and Clardy signed the certification statement on the application as the
    administrator and medical director, respectively. Additionally, they signed the
    Medicare participating physician or supplier agreement, which ensured that
    payments for any filed claims would go to CNS rather than the patient.
    Subsequently, Medicare approved CNS’s application and provided it
    with a billing number.            Medicare also sent CNS a confirmation letter,
    indicating that Clardy was approved and providing an individual number for
    billing. Claims could therefore be billed under Clardy’s number beginning on
    July 19, 2006. In addition, Imo submitted an application to Medicaid for CNS,
    identifying Imo as the owner and Clardy as the doctor. CNS was approved and
    given the information needed to begin filing claims with Medicaid. From
    approximately March 2, 2006 to June 26, 2009, CNS billed Medicare and
    Medicaid for approximately $30 million. However, CNS was never registered
    1  Although Imo and Clardy reserved the right to adopt the arguments raised by the
    other Defendants-Appellants, they have not done so. However, Anokam sought to adopt the
    arguments raised by Imo and Clardy. The only argument raised by another Defendant-
    Appellant but not Anokam is Clardy’s sufficiency of the evidence challenge. Because that
    argument is fact-specific, Anokam may not adopt that argument, and we therefore do not
    consider it. See United States v. Stephens, 
    571 F.3d 401
    , 404 n.2 (5th Cir. 2009).
    (“[S]ufficiency of the evidence challenges are fact-specific, so we will not allow the appellants
    to adopt those arguments.” (internal quotation marks and citation omitted)).
    2 We limit our discussion of the facts in this section to a general overview. Additional
    facts are provided when necessary throughout this opinion.
    2
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    to provide physical therapy services and did not have any licensed physical
    therapists.
    Clardy, an anesthesiologist, worked at CNS along with her twin sister,
    Dr. Catherina Clardy (“Dr. Catherina”). Clardy contracted with CNS to work
    fifteen hours a week in return for a monthly salary of $5,000; 3 this contract
    was also submitted in CNS’s application to Medicare. According to her contract
    with CNS, Clardy’s duties included supervising the physical therapy services
    provided and maintaining the medical records associated with those. In fact,
    Clardy sent CNS a letter stating that physical therapy and occupational
    therapy services could only be billed to Medicare when she directly supervised
    the therapy and the services were pursuant to a treatment plan she
    established. Clardy, however, was not licensed to provide physical therapy
    services. A report by Health Integrity, a government contractor responsible
    for investigating, inter alia, fraud for Medicare and Medicaid, demonstrated
    that claims submitted under Clardy’s billing number were primarily for
    physical therapy services.       Indeed, based on the submitted bills, Clardy
    supposedly supervised more than 380 patients during the course of a single
    day; each patient purportedly received three hours of physical therapy.
    2. Overview of the Scheme
    Beginning in November 2006, Imo brought patients to CNS to be treated
    by Latricia Smith, a physical therapy aide. CNS only accepted patients with
    Medicare or Medicaid. Once CNS began to expand, additional employees were
    hired to recruit patients to CNS. CNS paid these employees for each patient
    they brought to the clinic. CNS also paid patients whenever they visited the
    3 Clardy testified that she signed another contract with Imo in which she agreed to
    work ten hours per week in return for a monthly salary of $10,000.
    3
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    clinic for an initial assessment and any subsequent reassessment. Initially,
    Imo was responsible for paying the patients who came to CNS as well as the
    people who referred them. When he was unable to make the payments, he
    would assign the duties to another employee.
    During a patient’s first visit to CNS, an employee would collect basic
    medical information from the patient. Before patients received treatment,
    CNS had them sign treatment forms, although the forms were intended to
    serve as a record of the treatment each patient received during his or her visit
    to CNS. Indeed, CNS often had patients sign multiple blank treatment forms
    when they visited the clinic. CNS employees, including Imo, would then fill in
    these blank treatment forms as if the patient received certain services,
    regardless of whether the patient actually received any treatment. As more
    patients began to come to CNS, patients would either not undergo any physical
    therapy or receive treatment from employees not licensed to provide such
    services.
    Initially, Imo handled the billing for CNS; however, as time progressed,
    Pam Ise and other employees became responsible for billing. Ise instructed
    employees to bill for certain services regardless of what therapy the patient
    actually received. In fact, CNS billed Medicare and Medicaid for deceased
    patients. At one point, CNS billed Medicare for 382 patients in one day. Some
    patients began to complain to CNS concerning their bills.
    Beginning in 2008, Anokam began working at CNS. Witnesses testified
    that Anokam was in charge of the clinic when Imo was not present, assisted in
    falsifying data on the forms submitted to Medicare and Medicaid, handled
    problems that arose, and paid people who came to the clinic complaining that
    CNS had overcharged them.
    4
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    In August 2008, Clardy notified Medicare that she wished to terminate
    the reassignment of her benefits to CNS.                Because of a mistake in her
    termination application, however, the reassignment was not immediately
    terminated. Clardy waited almost two months before rectifying the problem;
    once Medicare received a correct termination application, CNS could no longer
    bill under Clardy’s number. In the notification, Clardy expressed concern
    about potential legal liability. When Clardy and Dr. Catherina left CNS, they
    were replaced by two other doctors—Dr. Theresa Rice and Dr. Thaddeus
    Hume. In March 2009, CNS and the doctors associated with the clinic were
    placed on prepay review—that is, all claims submitted had to have
    corroborating documentation before the claims would be paid. Notably, none
    of CNS’s claims were paid once the clinic was placed on prepay review.
    b. Procedural History
    Defendants-Appellants were indicted for conspiracy to commit health
    care fraud in violation of 18 U.S.C. § 1349 (count one), health care fraud in
    violation of 18 U.S.C. §§ 1347 and 2 (counts two through forty), 4 and mail fraud
    in violation of 18 U.S.C. § 1341 (counts forty-one through forty-three). Imo was
    indicted for money laundering in violation of 18 U.S.C. § 1957 (counts forty-
    four through forty-eight), and Anokam was indicted for structuring to avoid
    reporting in violation of 31 U.S.C. § 5324(a)(3). 5 A jury found Imo, Clardy, and
    Anokam guilty on multiple counts of health care fraud, conspiracy to commit
    health care fraud, mail fraud, money laundering, and structuring to avoid
    reporting requirements. Subsequently, Imo was sentenced to 327 months’
    4 Clardy was indicted only on counts two through twenty-eight, not twenty-nine
    through forty.
    5 Counts forty-nine through fifty-one applied to another defendant not a party to this
    appeal.
    5
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    imprisonment and ordered to pay $30,216,592.15 in restitution as well as a
    $4,800 special assessment. Imo objected to the loss calculation and the mass
    marketing enhancement applied by the district court, but the court overruled
    the objections. The court also approved a two-level enhancement for willful
    obstruction or the attempt to obstruct justice.
    The court sentenced Clardy to a total of 135 months’ imprisonment with
    three years of supervised release. In addition, Clardy was ordered to pay
    $15,626,084.01 in restitution and a $1,800 special assessment. Clardy raised
    a number of objections, including that she was not the medical director for
    CNS, the 22-level enhancement for intended loss was improper, and the two-
    level enhancement for mass marketing was not applicable. The district court
    overruled each of her objections. Clardy also moved for an acquittal or a new
    trial, which the court denied.
    Anokam was sentenced to a total of 151 months’ imprisonment. He
    challenged the amount of loss he was held accountable for, the two-level
    enhancement for his managerial role in the health care fraud scheme, and the
    enhancement for mass marketing. He was ordered to pay $19,047,546.88 for
    restitution and a $2,900 special assessment. Defendants-Appellants timely
    appealed.
    II.   DISCUSSION
    A. Limiting Instruction
    For the most part, Defendants-Appellants raise similar, if not identical,
    arguments on this issue. They contend that, because there was no limiting
    instruction, there was a risk the jury improperly found violations of Medicare
    and Medicaid regulations as sufficient proof of their criminal guilt. Moreover,
    they argue that the court failed to provide the jury with instructions limiting
    the evidence of Medicare and Medicaid violations to intent, knowledge, and
    6
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    motive. In addition, Clardy argues that Federal Rule of Evidence (“FRE”) 105
    mandated that a limiting instruction be given. 6                 Defendants-Appellants’
    arguments are unavailing.
    1. Standard of Review
    We review a court’s failure to give a limiting instruction for an abuse of
    discretion. See United States v. Davis, 
    609 F.3d 663
    , 689 (5th Cir. 2010).
    Reversal is proper “only if the requested instruction (1) was a substantially
    correct statement of the law, (2) was not substantially covered in the charge as
    a whole, and (3) concerned an important point in the trial such that the failure
    to instruct the jury on the issue seriously impaired the defendant’s ability to
    present a given defense.” United States v. Peterson, 
    244 F.3d 385
    , 394 (5th Cir.
    2001) (citation omitted). District courts are entitled to “substantial latitude in
    formulating a jury charge.” 
    Davis, 609 F.3d at 689
    (internal quotation marks
    and citation omitted).
    2. Applicable Law
    In United States v. Christo, we held that the district court committed
    reversible error when it permitted the government to produce substantial
    evidence concerning violations of a civil statute that was irrelevant to the
    charged crimes.        
    614 F.2d 486
    , 492 (5th Cir. 1980).               Essentially, the
    “conviction[] result[ed] from the government’s attempt to bootstrap . . . a civil
    regulatory violation[] into an equal amount of misapplication felonies . . . .” 
    Id. The trial
    court further compounded the error by “focusing the jury’s attention
    to the” civil violations. 
    Id. We have
    interpreted “Christo as being principally
    6As an initial matter, we note that, contrary to the Government’s argument otherwise,
    each of Defendants-Appellants requested a limiting instruction at trial.
    7
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    concerned with bootstrapping of civil violations into criminal liability.” United
    States v. Brechtel, 
    997 F.2d 1108
    , 1115 (5th Cir. 1993) (per curiam).
    However, we have “permitted use of civil violation evidence in criminal
    prosecutions for more limited purposes.” 
    Id. (collecting cases).
    In United
    States v. Jones, 
    664 F.3d 966
    , 980 (5th Cir. 2011), the prosecution introduced
    testimony regarding the connection between the alleged crimes, Medicare
    regulations, and the corresponding state requirements. The defendant asked
    for a limiting instruction, instructing the jury on keeping any state
    requirement distinct from the federal crimes at issue in the case. 
    Id. We held
    that the district court did not err when it denied the request. 
    Id. at 981.
    Rather, after considering the jury instructions “as a whole,” we found that the
    jury instructions given “sufficiently articulated to the jury that they were only
    to consider the federal crimes charged and not any of the state rules and
    regulations that were discussed.” 
    Id. In particular,
    we relied on the district
    court’s statement that the prosecution had to prove the crime alleged in the
    indictment beyond a reasonable doubt, not any other conduct. 
    Id. Moreover, we
    have approved the use of regulatory violations to provide
    clarity in regards to the criminal violations alleged when the prosecution also
    adequately proved the charged crime. United States v. Brown, 
    553 F.3d 768
    ,
    791–92 (5th Cir. 2008). For example, in United States v. Arthur, we recognized
    that the evidence of Medicare violations assisted the jury in understanding the
    health care fraud scheme and also demonstrated the defendant’s intent. 432
    F. App’x 414, 423 (5th Cir. 2011) (per curiam) (unpublished). Ultimately, we
    found that the district court did not commit plain error when it did not give a
    limiting instruction because 1) the evidence served a permissible purpose; 2)
    the Government’s case did not rely solely on regulatory violations; 3) the
    Government did not argue that Medicare violations were sufficient proof of the
    8
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    charged crime; and 4) the district court did not discuss the Medicare violations
    in the jury instructions. 
    Id. We have
    relied on limiting instructions, inter alia,
    to demonstrate that no harm occurred. See, e.g., 
    Brechtel, 997 F.2d at 1115
    .
    Under FRE 105, if evidence is admissible for one purpose but not
    another, “the court, on timely request, must restrict the evidence to its proper
    scope and instruct the jury accordingly.” When a court admits such evidence,
    “it cannot refuse a requested limiting instruction.” Lubbock Feed Lots, Inc. v.
    Iowa Beef Processors, Inc., 
    630 F.2d 250
    , 266 (5th Cir. 1980). However, the
    instruction “need not be given in the particular form or manner that is sought
    by the parties, so long as the general instructions sufficiently serve the limiting
    purposes of Rule 105.” 
    Id. In United
    States v. Jensen, we affirmed the district
    court’s refusal to use the defendant’s requested limiting instruction and jury
    instruction because they were covered in the instructions provided by the
    district court and the court’s refusal did not impact the defendant’s ability to
    present his defense. 
    41 F.3d 946
    , 953–54 (5th Cir. 1994).
    3. Discussion
    Although it would have been preferable for the district court to provide
    a cautionary instruction to the jury on the permissible purpose of the Medicare
    and Medicaid violations, see 
    Brechtel, 997 F.2d at 1115
    , the district court did
    not abuse its discretion in refusing to give the requested limiting instruction.
    Aside from the amount of time the prosecution spent demonstrating various
    regulatory violations, Defendants-Appellants fail to point to any instance
    during the trial when the prosecution or court utilized the regulations in an
    impermissible manner. Rather, the district court instructed the jury on the
    crimes charged and warned the jury that it was not to judge Defendants-
    9
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    Appellants on conduct other than that alleged in the indictments. 7
    Defendants-Appellants were free to argue before the jury that the violations
    were not a sufficient indication of criminal guilt. Indeed, the jury acquitted
    Clardy of some of the charges although her conduct constituted violations of
    Medicare and Medicaid regulations. Accordingly, the district court did not
    abuse its discretion. See 
    Jones, 664 F.3d at 981
    .
    Reversal is further not warranted because, based on the record on
    appeal,     Defendants-Appellants’        requested     jury     instructions        were
    “substantially covered in the charge as a whole” and their ability to present a
    defense was not “seriously impaired.” See 
    Peterson, 244 F.3d at 394
    ; 
    Jones, 664 F.3d at 981
    . While the instructions discussed Medicare and Medicaid, the
    discussion was limited to the information necessary to properly charge the jury
    on its duty. Moreover, the district court did not violate FRE 105 because, as
    stated    above,   Defendants-Appellants’       concerns    were    covered     by    the
    instructions given by the district court. See 
    Jensen, 41 F.3d at 953
    –54.
    B. Sufficiency of the Evidence
    Clardy contends that, while the government successfully demonstrated
    that she was naïve, careless, and negligent, the evidence does not show that
    she either knowingly or intentionally violated any criminal laws. We disagree.
    1. Standard of Review
    Sufficiency of the evidence challenges are reviewed de novo. United
    States v. Grant, 
    683 F.3d 639
    , 642 (5th Cir. 2012).             When reviewing the
    sufficiency of the evidence, a court must determine whether “any rational trier
    of fact could have found the essential elements of the crime beyond a
    7 In fact, the jury charge contained a detailed description of the elements of the
    charges against Defendants-Appellants.
    10
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    reasonable doubt.” United States v. Moreno-Gonzalez, 
    662 F.3d 369
    , 372 (5th
    Cir. 2011) (internal quotation marks and citation omitted). Evidence is to be
    viewed “in the light most favorable to the verdict.” 
    Id. (internal quotation
    marks and citation omitted). Moreover, courts are to “accept[] all credibility
    choices and reasonable inferences made by the trier of fact which tend to
    support the verdict.” 
    Id. (internal quotation
    marks and citation omitted).
    The evidence presented need not “exclude every reasonable hypothesis
    of innocence or be wholly inconsistent with every conclusion except that of
    guilt.” 
    Id. (internal quotation
    marks and citation omitted). Furthermore, “any
    conflict in the evidence must be resolved in favor of the jury’s verdict.” 
    Id. (citation omitted).
    Nevertheless, we do “not lightly overturn a determination
    by the trier of fact that the accused possessed the requisite intent.” United
    States v. Patel, 485 F. App’x 702, 709 (5th Cir. 2012) (unpublished) (quoting
    United States v. Robichaux, 
    995 F.2d 565
    , 570 (5th Cir. 1993) (internal
    quotation marks omitted)).
    2. Applicable Law
    a. Conspiracy to Commit Health Care Fraud
    To establish a conspiracy to commit healthcare fraud, the government
    must prove: “the existence of an agreement between two or more people to
    pursue the offense of fraud; the defendant knew of the agreement; and the
    defendant voluntarily participated in the conspiracy.”             United States v.
    Delgado, 
    668 F.3d 219
    , 226 (5th Cir. 2012) (citations omitted).                   The
    conspirators may have a silent and informal agreement. 
    Grant, 683 F.3d at 643
    . Indeed, the “voluntary participation may be inferred from a collection of
    circumstances,    and    knowledge    may      be    inferred    from    surrounding
    circumstances.”     
    Id. (internal quotation
    marks and citation omitted).            A
    defendant need not have actually submitted the fraudulent documentation to
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    Medicaid in order to be guilty of health care fraud or conspiracy to commit
    health care fraud. United States v. Girod, 
    646 F.3d 304
    , 313 (5th Cir. 2011).
    Moreover, the Government may use either direct or circumstantial evidence to
    prove each element. 
    Delgado, 668 F.3d at 226
    . However, there is insufficient
    evidence of a conspiracy if the Government has only “pile[d] inference upon
    inference upon which to base a conspiracy charge.” 
    Grant, 683 F.3d at 642
    (internal quotation marks and citation omitted).
    b. Health Care Fraud
    Under 18 U.S.C. § 1347,
    Whoever knowingly and willfully executes, or attempts to execute,
    a scheme or artifice—
    (1) to defraud any health care benefit program; or
    (2) to obtain, by means of false or fraudulent pretenses,
    representations, or promises, any of the money or property owned
    by, or under the custody or control of, any health care benefit
    program,
    in connection with the delivery of or payment for health care
    benefits, items, or services [commits health care fraud].
    18 U.S.C. § 1347.
    The Government does not have to prove that the defendant had actual
    knowledge of or specifically intended to violate the applicable health care fraud
    statutes. United States v. Whitfield, 485 F. App’x 667, 670 (5th Cir. 2012)
    (unpublished).
    c. Mail Fraud
    To prove that a party has committed mail fraud under 18 U.S.C. § 1341,
    the Government must demonstrate “(1) the defendant devised or intended to
    devise a scheme to defraud, (2) the mails were used for the purpose of
    executing, or attempting to execute, the scheme, and (3) the falsehoods
    employed in the scheme were material.” United States v. Read, 
    710 F.3d 219
    ,
    227 (5th Cir. 2012) (internal quotation marks and citation omitted).         The
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    defendant must have known that “the scheme involved false representations.”
    
    Id. (internal quotation
    marks and citation omitted).        “The first element
    includes a defendant’s scheme or artifice . . . for obtaining money or property
    by means of false or fraudulent pretenses, representations, or promises. . . .”
    United States v. Ratcliff, 
    488 F.3d 639
    , 644 (5th Cir. 2007) (internal quotation
    marks and citations omitted). Moreover, a defendant violates § 1341 each time
    the mail is used in the scheme. United States v. Akpan, 
    407 F.3d 360
    , 370 (5th
    Cir. 2005).
    A defendant “acts with the intent to defraud when he acts knowingly
    with the specific intent to deceive for the purpose of causing pecuniary loss to
    another or bringing about some financial gain to himself.”         
    Id. (internal quotation
    marks and citation omitted). We have held that the second element
    is satisfied when “one does an act with knowledge that the use of the mails will
    follow in the ordinary course of business, or where such use can reasonably be
    foreseen.” United States v. Ingles, 
    445 F.3d 830
    , 835 (5th Cir. 2006) (internal
    quotation marks and citation omitted); see also 
    Read, 710 F.3d at 227
    (holding
    that the second element was satisfied when Medicare mailed the defendant
    checks for the fraudulent claims the defendant billed). In Akpan, we explained
    that the Government does not have to prove that a defendant actually used the
    mail or even “intended that the mails be 
    used.” 407 F.3d at 370
    . Instead, the
    Government has to establish “that the scheme depended for its success in some
    way upon the information and documents which passed through the mail.” 
    Id. 3. Discussion
             a. Conspiracy to Commit Health Care Fraud
    There was sufficient evidence supporting Clardy’s conviction for
    conspiracy to commit health care fraud. In count 1, the government alleged
    that Clardy engaged in a conspiracy to commit health care fraud. Specifically,
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    it states that from approximately March 2, 2006 to June 26, 2009, she
    “knowingly and willfully” conspired with Imo and others to defraud Medicare
    and Medicaid in violation of §§ 1347, 1349.
    Our review of the record persuades us that there is sufficient evidence to
    support Clardy’s conviction on count 1.             The jury could have inferred an
    agreement between Clardy and Imo to defraud Medicare and Medicaid through
    CNS. The Government presented evidence of a letter dated July 25, 2007 from
    Clardy to Imo threatening legal action if he did not stop billing Medicare and
    Medicaid through her billing number. 8 Nevertheless, after meeting with Imo,
    Clardy began working at CNS and receiving payments from CNS. Even before
    she began receiving compensation from CNS, she signed two employment
    agreements with Imo, which were dated May 10, 2006. 9 Although Clardy
    testified that Imo assured her the billing was a mistake and promised to rectify
    the mistake, the jury was entitled to find otherwise. The jury also could have
    found not credible her explanations that Ise showed her information indicating
    that CNS was properly billing Medicare and Medicaid and that Imo forged her
    signature on the documents sent to Medicare and Medicaid. Indeed, Clardy
    admitted to signing one of the documents in CNS’s Medicare application but
    stated that she was unaware that it was part of the application process.
    While it is possible that Clardy’s account of the facts is true, the
    Government’s version is also plausible and Clardy has failed to convince us
    otherwise. The above evidence suggests that she was aware of the agreement
    and voluntarily participated. Accepting the jury’s credibility determinations,
    8  Evidence was presented that, from January 2007 to July 25, 2007, CNS billed
    approximately $8,000,000 by using Clardy’s billing information. After the letter was sent,
    CNS billed approximately $22,000,000 using Clardy’s billing number.
    9 One contract stated that she would receive $5,000 in salary while the other said
    $10,000.
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    there is sufficient evidence to support Clardy’s conviction for conspiracy to
    commit health care fraud under count 1.
    b. Health Care Fraud
    The Government also provided sufficient evidence to support Clardy’s
    health care fraud convictions under counts 5–8, 14–18, 20–21, 23–24, and 26–
    27 of the second superseding indictment. In these counts, the Government
    alleges that, beginning on approximately March 2, 2006 and ending on June
    26, 2009, Clardy “knowingly and willfully” defrauded Medicare and Medicaid
    by submitting fraudulent claims for physical therapy services that were either
    not provided or provided by unlicensed employees. Based on the evidence
    noted above, the jury could reasonably have found that Clardy “knowingly and
    willfully” defrauded Medicare and Medicaid by submitting false claims. Clardy
    stresses that she was unaware of the scheme being run through CNS; however,
    the jury heard sufficient evidence upon which it could find this assertion
    unavailing. 10 Notably, the testimony of both patients and employees indicates
    that the vast majority of the patients did not receive physical therapy services.
    Furthermore, those employees providing physical therapy services were not
    qualified to do so; the jury reasonably could have determined that it was highly
    unlikely that Clardy was unaware of what was going on, regardless of her
    claims to the contrary.
    c. Mail Fraud
    Lastly, there was sufficient evidence to support Clardy’s mail fraud
    convictions under counts 41–43 of the second superseding indictment. Counts
    41–43 state that, beginning around March 2, 2006 and ending around June 26,
    10 We acknowledge that there was also evidence that CNS employees attempted to
    ensure that the doctors at the clinic were unaware that patients were paid to come to the
    clinic.
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    2009, the health care fraud scheme Clardy allegedly was involved in caused
    Medicare and Medicaid to send payments for fraudulent claims through the
    United States Postal Service. As demonstrated above, there was sufficient
    evidence that Clardy entered into a scheme to defraud Medicare.               Clardy
    argues that she was not in charge of the mail and never received any
    notifications from CNS; however, that is irrelevant to her mail fraud charges.
    Rather, to prove the second element, the Government only had to prove “that
    the scheme depended for its success in some way upon the information and
    documents which passed through the mail.” 
    Akpan, 407 F.3d at 370
    . That
    element is satisfied here because CNS received payment from Medicare and
    Medicaid through the mail. There also was evidence that the scheme involved
    material falsehoods. The Government presented evidence that the bills sent
    to Medicare and Medicaid were fraudulent for a variety of reasons. Some
    claims purported to have given physical therapy services when no services
    were actually rendered; other claims asserted that physical therapy services
    were given by properly qualified individuals when that was not the case; and
    some claims were submitted for deceased patients. Accordingly, we hold that
    there is sufficient evidence supporting Clardy’s conviction for conspiracy to
    commit health care fraud, health care fraud, and mail fraud.
    C. Evidentiary Challenges
    At trial, the prosecution cross-examined Clardy on the following: (1)
    blank prescription forms she signed while working at two pain management
    clinics; (2) the fact that the clinics required patients to pay cash; and (3) a letter
    from an anonymous party that was found in her safe, which warned her that
    prescriptions bearing her name were being sold on the street. While she
    admitted that she signed the blank prescription forms and had a cash-only
    policy, she explained that she did not investigate the allegation in the letter
    16
    Case: 11-20791         Document: 00512491278         Page: 17    Date Filed: 01/07/2014
    No. 11-20791
    because she received the letter only a few days or approximately a week before
    the authorities came and seized the letter. 11               Clardy contends that the
    introduction of the above specific acts violated FRE 401, 403, 404(b), and 405.
    Her arguments are without merit.
    1. Standard of Review
    Evidentiary rulings are reviewed under an abuse of discretion standard,
    “subject to [a] harmless-error analysis.” 
    Girod, 646 F.3d at 318
    . The admission
    of evidence is reversible error only when the defendant’s rights were
    “substantially prejudiced” by the admission. 
    Id. at 318–19
    (internal quotation
    marks and citation omitted).
    2. Applicable Law
    Evidence is relevant if “it has any tendency to make a fact more or less
    probable than it would be without the evidence; and [] the fact is of consequence
    in determining the action.” Fed. R. Evid. 401. FRE 403 excludes relevant
    evidence “if its probative value is substantially outweighed by a danger of [,
    inter alia,] unfair prejudice.” Fed. R. Evid. 403. However, a court can reduce
    the danger of undue prejudice by giving a limiting instruction. United States
    v. Sanders, 
    343 F.3d 511
    , 518 (5th Cir. 2003). FRE 404(b) prohibits the use of
    evidence of an act to prove that a person acted in conformity with the character
    trait that act demonstrates.             Fed. R. Evid. 404(b)(1).            During cross-
    examination, a party may question a witness on specific acts “if they are
    probative of the [witness’s] character for truthfulness or untruthfulness.” Fed.
    R. Evid. 608(b)(1).
    Once a defendant testifies, “his character for truthfulness [is] in issue.”
    
    Sanders, 343 F.3d at 518
    . In Akpan, we cautioned that a defendant’s choice to
    11   She was unclear as to the exact amount of time that transpired.
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    No. 11-20791
    testify “does not give the prosecution free 
    rein.” 407 F.3d at 373
    (internal
    quotation marks and citation omitted). Rather, the prosecution may “cross-
    examine the defendant with respect to instances of misconduct that are clearly
    probative of truthfulness or untruthfulness, such as perjury, fraud, swindling,
    forgery, bribery, and embezzlement.”      
    Id. (internal quotation
    marks and
    citation omitted).
    3. Discussion
    The district court did not abuse its discretion in permitting the
    Government to cross-examine Clardy on the blank prescription forms she
    signed, the cash-only policy at two pain management clinics, and the letter
    from the anonymous party. Moreover, even if there was error, it was harmless
    because Clardy was not “substantially prejudiced” by the admission of the
    evidence. See 
    Girod, 646 F.3d at 318
    .
    As we have previously held, the prosecution is permitted to cross-
    examine defendants on fraudulent acts because they are indicative of the
    defendant’s character for truthfulness. See 
    Sanders, 343 F.3d at 519
    ; 
    Akpan, 407 F.3d at 373
    –74. Here, evidence that Clardy signed blank prescription
    forms at two pain management clinics, which only accepted cash from patients
    is probative of her character for truthfulness.    Because she testified, this
    character trait was a proper inquiry by the Government. See 
    Sanders, 343 F.3d at 518
    –19.      This evidence further implicates Clardy’s character for
    untruthfulness, especially considering Clardy’s response to the anonymous
    letter she received. Admittedly, the evidence of the cash-only policy is not as
    fraudulent as the other two acts; however, when viewed in the context in which
    it was introduced—namely, while explaining Clardy’s conduct at the other two
    pain management clinics—it is at least somewhat probative of her character
    for truthfulness.
    18
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    No. 11-20791
    Additionally, any prejudice Clardy may have incurred due to the
    introduction of this evidence was reduced by the limiting instructions given by
    the district court both after the testimony was introduced and in the jury
    charge. See 
    id. at 518.
    Moreover, there was sufficient evidence presented at
    trial indicating that Clardy was guilty of the crimes charged. 
    See supra
    Part
    B.3. Thus, it is highly unlikely that the Government’s cross-examination on
    this evidence was determinative of the outcome of this case.
    None of the other evidentiary violations Clardy alleges are meritorious.
    The evidence presented was relevant, considering that it dealt with her
    character for truthfulness and her testimony and credibility were key features
    of her defense. Moreover, FRE 404(b) is inapplicable to this issue. See United
    States v. Morgan, 
    505 F.3d 332
    , 339 (5th Cir. 2007) (“[W]hether Rule 404(b) or
    Rule 608(b) applies to the admissibility of other-act evidence depends on the
    purpose for which the prosecutor introduced the other-acts evidence. Rule
    404(b) applies when extrinsic evidence is offered as relevant to an issue in the
    case, such as identity or intent. Rule 608(b) applies when extrinsic evidence is
    offered to impeach a witness, to show the character of the witness for
    untruthfulness.” (internal quotation marks and citations omitted)). Because
    this evidence was introduced to discredit Clardy, FRE 608 controls, not 404(b).
    Consequently, the district court did not err in permitting the Government to
    cross-examine Clardy on these specific acts.
    D. Sentencing Enhancement Pursuant to United States Sentencing
    Guideline (“U.S.S.G.”) § 2B1.1(b)(1)(L)
    The district court found that Clardy intended a loss of $21,691,203, the
    amount of fraudulent claims CNS billed Medicaid and Medicare from August
    2007 to August 2008, the time period Clardy is alleged to have been a part of
    the conspiracy. Anokam’s intended loss amounted to $28,617,426, which was
    19
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    No. 11-20791
    also based on the time he was alleged to have been involved in the conspiracy.
    Clardy asserts that the district court erred in holding her liable for the entire
    amount CNS fraudulently billed Medicare and Medicaid during August 2007
    through August 2008. Anokam also challenges the district court’s intended
    loss computation. Their arguments are unavailing.
    1. Standard of Review
    Sentencing decisions by a district court are reviewed for an abuse of
    discretion. United States v. Harris, 
    597 F.3d 242
    , 250 (5th Cir. 2010). While
    factual findings are reviewed under a clear error standard, “the district court’s
    interpretation or application of the Sentencing Guidelines is reviewed de novo.”
    
    Id. (internal quotation
    marks and citation omitted). The district court has not
    clearly erred if its findings are “plausible in light of the record as a whole.” 
    Id. (internal quotation
    marks and citation omitted). “The district court receives
    wide latitude to determine the amount of loss and should make a reasonable
    estimate based on available information.” United States v. Jones, 
    475 F.3d 701
    , 705 (5th Cir. 2007).
    2. Applicable Law
    U.S.S.G. § 2B1.1(b)(1) increases the offense level for a particular crime
    based on the amount of the loss that results from the fraud. Loss is considered
    “the greater of actual loss or intended loss.” U.S.S.G. § 2B1.1(b)(1) cmt. 3(A).
    Actual loss is defined as “the reasonably foreseeable pecuniary harm that
    resulted from the offense.” 
    Id. at 3(A)(i).
    Intended loss “means the pecuniary
    harm that was intended to result from the offense; and [] includes intended
    pecuniary harm that would have been impossible or unlikely to occur (e.g., as
    in a government sting operation, or an insurance fraud in which the claim
    exceeded the insured value).” 
    Id. at 3(A)(ii).
    In United States v. Isiwele, we
    “endorsed a fact-specific, case-by-case inquiry into the defendant’s intent in
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    No. 11-20791
    determining intended loss for sentencing purposes” in the health care fraud
    context. 
    635 F.3d 196
    , 203 (5th Cir. 2011) (internal quotation marks omitted).
    The Government has to prove a defendant’s intent by a preponderance
    of the evidence. 
    Id. While the
    amount billed to Medicare and Medicaid is
    “prima facie evidence of the amount of loss [the defendant] intended to cause,”
    it is not “conclusive evidence of [the] intended loss.” 
    Id. (internal quotation
    marks and citation omitted) (first alteration in original). Rather, “parties may
    introduce additional evidence to suggest that the amount billed either
    exaggerates or understates the billing party’s intent.” 
    Id. (internal quotation
    marks and citations omitted).
    When reviewing a district court’s findings, we “exercise great deference
    to a district court’s credibility findings.” United States v. Hearne, 397 F. App’x
    948, 951 (5th Cir. 2010) (per curiam) (unpublished) (internal quotation marks
    and citation omitted). In Hearne, the defendant contested the district court’s
    intended loss calculation on the basis that the loss should be the amount he
    was reimbursed for the false claims rather than the amount he billed. 
    Id. at 950.
    The district court found that even assuming he knew that he would not
    be fully reimbursed, he sent Medicare and Medicaid bills with the intention
    that he would be paid. 
    Id. at 951.
    We found there was sufficient evidence to
    support the district court’s finding even though (1) some of the evidence
    suggested the defendant was knowledgeable of Medicare’s billing policies and
    (2) the defendant hired others to oversee the billing. 
    Id. 3. Discussion
          The district court did not err in its intended loss calculation.         The
    Government only had to prove the amount of the intended loss by a
    preponderance of the evidence. See 
    Isiwele, 635 F.3d at 203
    . Although there
    was evidence contradicting the intended loss amount, the Government carried
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    No. 11-20791
    its burden as to both Clardy and Anokam. First, there was evidence that
    Clardy signed the Medicare application for CNS with Imo and was hired by
    CNS to oversee and conduct physical therapy services there. Although Clardy
    claimed her signature was forged, the district court reasonably could have
    found her testimony not credible.              Second, Clardy worked for CNS after
    sending CNS a letter demanding that it stop billing Medicare under her
    number. She attempted to explain her reason for working after she sent the
    letter; however, again, the district court was entitled to find that it was not
    credible. Admittedly, there was evidence that Ise was responsible for billing.
    Nevertheless, there was sufficient evidence upon which the district court could
    find that Clardy intended to cause a loss of $21,691,203, the amount CNS billed
    Medicare during the year she worked at CNS. See Hearne, 397 F. App’x at 951.
    The Government also carried its burden in regards to Anokam.
    Testimony was elicited at trial that he had a managerial role in CNS and
    participated with the billing. Moreover, there was testimony that he created
    false patient files, hired employees, paid patients and recruiters, and was one
    of only a few employees at CNS who had access to the mail. While he contested
    his involvement, the Government only had to prove the intended loss amount
    by a preponderance of the evidence. See 
    Isiwele, 635 F.3d at 203
    . Furthermore,
    Anokam’s contention that the district court conflated his possible knowledge of
    the scheme with intent is unavailing as there was sufficient evidence for the
    court to have found that he did intend to cause that loss. 12
    III.   CONCLUSION
    12  Anokam also challenges the district court’s imposition of a two-level enhancement
    under U.S.S.G. § 2B1.1(b)(2)(A)(ii) for mass marketing. However, he acknowledges that this
    issue is foreclosed by our decision in Isiwele, 
    635 F.3d 196
    . We therefore hold that the district
    court did not err by imposing a two-level enhancement pursuant to U.S.S.G.
    § 2B1.1(b)(2)(A)(ii). See 
    Isiwele, 635 F.3d at 203
    –05.
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    For the foregoing reasons, we AFFIRM Defendants-Appellants’
    convictions and sentences.
    23