United States v. Raul S. Ramirez ( 2012 )


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  •                  Case: 10-15035         Date Filed: 09/28/2012   Page: 1 of 24
    [DO NOT PUBLISH]
    IN THE UNITED STATES COURT OF APPEALS
    FOR THE ELEVENTH CIRCUIT
    ________________________
    No. 10-15035
    ________________________
    D.C. Docket No. 1:09-cr-20295-PAS-1
    UNITED STATES OF AMERICA,
    llllllllllllllllllllllllllllllllllllllllPlaintiff - Appellee,
    versus
    RAUL S. RAMIREZ,
    llllllllllllllllllllllllllllllllllllllllDefendant - Appellant.
    ________________________
    Appeal from the United States District Court
    for the Southern District of Florida
    ________________________
    (September 28, 2012)
    Before TJOFLAT, PRYOR and RIPPLE,* Circuit Judges.
    PER CURIAM:
    Raul Ramirez appeals his convictions and sentences for one count of
    *
    Honorable Kenneth F. Ripple, United States Circuit Judge for the Seventh Circuit, sitting
    by designation.
    Case: 10-15035     Date Filed: 09/28/2012   Page: 2 of 24
    conspiracy to commit health care fraud, 
    18 U.S.C. § 1349
    ; twelve counts of health
    care fraud, 
    id.
     § 1347; and three counts of money laundering, id. § 1957. Ramirez
    argues that the district court erred when it refused to dismiss his indictment, failed
    to conduct competency hearings sua sponte, and made several evidentiary rulings
    at trial. Ramirez also argues that the district court erred when it sentenced him.
    All of Ramirez’s arguments lack merit. We affirm.
    I. BACKGROUND
    Ramirez owned R.A. Medical Center, a medical clinic in Miami, Florida,
    and served as its executive director. From February 2004 to April 2005, R.A.
    Medical paid Medicare beneficiaries to visit the clinic and billed Medicare for
    infusion and injection treatments for HIV. Dr. Joseph Barata worked at R.A.
    Medical and his Medicare provider number was used to submit claims to
    Medicare.
    In 2005, the government filed a civil forfeiture action against Ramirez and
    alleged that he had billed Medicare for medically unnecessary and unperformed
    procedures. In February 2006, while the civil forfeiture case was pending,
    Ramirez was injured in a car accident. According to Ramirez, he sustained six
    herniated disks, four of which protruded into his spinal cord; an injury to his head;
    pain, numbness, tremors, and headaches; and a loss of physical strength and
    mental acumen. Ramirez settled the civil case with the government.
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    Ramirez was indicted on April 2, 2009, and the charges at issue in this
    appeal involve the same conduct that was at issue in the civil forfeiture
    proceeding. Before trial, Ramirez filed a letter labeled “Secured Party Creditor”
    with the district court in which he moved the court to dismiss the indictment. The
    district court held a hearing on the motion, during which Ramirez stated that he
    was “a secured party creator [sic] and sovereign.” He also stated that, because he
    was an independent sovereign, the district court lacked jurisdiction over him, and
    he moved the district court to dismiss the indictment. The district court denied the
    motion and ordered a magistrate judge to hold a competency hearing. The
    magistrate judge ruled that Ramirez was competent to stand trial.
    At trial, the government produced evidence that Ramirez had manipulated
    blood samples of his patients as part of a scheme and artifice to defraud Medicare.
    R.A. Medical sent blood samples of its patients to Mercy Laboratory for testing.
    Two lab technicians who tested blood samples from R.A. Medical at Mercy
    Laboratory, Marisol Prendes and James Vaden, testified that, in their opinion, R.A.
    Medical manipulated some of the blood samples in a centrifuge. The government
    argued that R.A. Medical manipulated the blood because it wanted the blood tests
    of the patients to show a decreased blood platelet count so that R.A. Medical could
    justify billing Medicare for expensive medications.
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    Dr. Michael Wohlfeiler, a Miami physician who specializes in the treatment
    of HIV/AIDS, corroborated this theory with expert testimony. Dr. Wohlfeiler
    examined the medical records of patients who received treatment from both a
    primary care physician and R.A. Medical. He testified that the results of blood
    tests conducted at R.A. Medical were inconsistent with the results of blood tests
    conducted at other locations. For example, a sample from a patient collected at
    Cedar Springs Medical established that the patient had a platelet count of 198,000,
    a normal level, but seven days later, the results from a sample collected by R.A.
    Medical from the same patient showed that the platelet count was 47,000.
    Dr. Wohlfeiler explained that there was no legitimate medical explanation for
    those types of drops in platelet levels within ten days. He also explained that a
    critical value platelet count is rare for HIV patients. In addition to testifying about
    discrepancies in the blood samples, Dr. Wohlfeiler testified that many of the
    treatments provided to patients at R.A. Medical did not make medical sense. The
    jury convicted Ramirez of each charge in the indictment.
    At the sentencing hearing, Ramirez called Dr. Jorge Betancourt, a
    psychiatrist who began treating Ramirez in November 2007. Dr. Bentancourt
    testified that Ramirez had been referred to him due to the concerns of another
    physician about Ramirez’s cognitive deterioration. Dr. Betancourt saw Ramirez
    six times and diagnosed him with post-traumatic stress disorder.
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    The district court applied a two-level enhancement because the offense
    involved the conscious or reckless risk of death or serious bodily injury. Dr.
    Wohlfeiler testified that patients treated at R.A. Medical were put at great risk by
    the practices of the clinic. Dr. Wohlfeiler also testified that files of R.A. Medical
    that he reviewed did not establish that patients at R.A. Medical received
    appropriate monitoring and treatment.
    The district court also applied a two-level obstruction of justice
    enhancement. In applying the enhancement, the district court relied on testimony
    that Ramirez gave during a September 12, 2006, deposition in the related
    forfeiture case. During the deposition, Ramirez testified that Dr. Barata treated a
    patient on May 25, 2004, but the testimony at trial established that Dr. Barata was
    in Spain on that date. At the sentencing, Ramirez argued that he had not
    intentionally lied under oath because he had physical and mental difficulties
    during the deposition as a result of his car accident. But the district court found
    that Ramirez had lied under oath during his deposition.
    After applying the two enhancements, Ramirez’s total adjusted offense level
    was 36 with a criminal history category I, and Ramirez’s advisory guideline range
    was 188 to 235 months of imprisonment. The district court sentenced Ramirez to
    120 months of imprisonment for the conspiracy to commit health care fraud and
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    the substantive health care fraud counts and a consecutive term of 90 months for
    the money laundering counts.
    II. STANDARDS OF REVIEW
    Several standards of review govern this appeal. We review the denial of a
    motion to dismiss an indictment for an abuse of discretion. United States v.
    Clarke, 
    312 F.3d 1343
    , 1345 n.1 (11th Cir. 2002). We review the finding that a
    defendant is competent to stand trial for clear error. United States v. Izquierdo,
    
    448 F.3d 1269
    , 1276 (11th Cir. 2006). We review for abuse of discretion the
    failure of a district court to conduct a competency hearing sua sponte. United
    States v. Williams, 
    468 F.2d 819
    , 820 (5th Cir. 1972). We review evidentiary
    rulings for abuse of discretion. United States v. Frazier, 
    387 F.3d 1244
    , 1258
    (11th Cir. 2004) (en banc). If an error was not preserved, we review for plain
    error. United States v. Langford, 
    647 F.3d 1309
    , 1325 n.11 (11th Cir. 2011). We
    review for clear error the factual findings underlying a sentencing enhancement,
    and we accord great deference to the credibility determinations of the district
    court. United States v. Singh, 
    291 F.3d 756
    , 763 (11th Cir. 2002). We review the
    application of law to those facts de novo. 
    Id.
     We review the reasonableness of a
    sentence for abuse of discretion. United States v. Livesay, 
    587 F.3d 1274
    , 1278
    (11th Cir. 2009).
    6
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    III. DISCUSSION
    We divide our discussion into four parts. First, we address whether the
    district court abused its discretion when it refused to dismiss the indictment.
    Second, we address whether the district court abused its discretion when it did not
    conduct a competency hearing sua sponte. Third, we address whether the
    evidentiary rulings of the district court require reversal. Fourth, we address
    whether the district court erred when it sentenced Ramirez.
    A. The District Court Did Not Abuse Its Discretion When It Refused to Dismiss
    the Indictment.
    Ramirez argues that his due process rights were violated when the
    government delayed bringing an indictment against him for four years. The
    government responds that any delay in bringing the indictment was reasonable due
    to the complex nature of Medicare fraud prosecutions. Ramirez’s argument fails.
    The statute of limitations is the primary safeguard against the government
    bringing stale criminal charges, United States v. Marion, 
    404 U.S. 307
    , 322, 
    92 S. Ct. 455
    , 464 (1971), but when a defendant establishes substantial prejudice, due
    process may require the dismissal of an otherwise timely indictment if the delay
    was the product of a deliberate act by the government to gain a tactical advantage,
    United States v. Foxman, 
    87 F.3d 1220
    , 1222 (11th Cir. 1996). Because Ramirez
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    does not argue that the applicable statutes of limitations barred his prosecution, he
    shoulders the burden of “show[ing] that pre-indictment delay was deliberate for
    the purpose of tactical advantage.” United States v. Thomas, 
    62 F.3d 1332
    , 1339
    (11th Cir. 1995). To meet this burden, Ramirez must establish either that the
    government acted in “bad faith” by intentionally delaying the prosecution to cause
    Ramirez prejudice or that “the government ma[de] a judgment about how it
    [could] best proceed with litigation to gain an advantage over the defendant and,
    as a result of that judgment, [the] indictment [was] delayed.” Foxman, 
    87 F.3d at
    1223 n.2.
    Even if we assume that Ramirez suffered substantial prejudice from the
    failure of the government to indict him earlier, Ramirez failed to establish that the
    delay was the product of bad faith or a deliberate design by the government to gain
    a tactical advantage. In his opening brief, Ramirez makes the conclusory assertion
    that “[t]he government deliberately delayed the indictment for four years, even
    though it was aware of substantially the same witnesses and documents which
    were available in 2005 and 2009,” but he fails to identify facts that would tend to
    prove that the government acted in bad faith or made a deliberate decision to gain
    a tactical advantage over him that led to the delay. In his reply brief, Ramirez
    argues that the representation of the government that the delay was due to the
    8
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    complexity of the case “does not truly explain the delay,” but the government does
    not bear the burden of explaining the reason for the delay. As the district court
    explained, Ramirez’s “claim of any Government intent to obtain a tactical
    advantage is speculation.” The district court did not abuse its discretion when it
    refused to dismiss the indictment for preindictment delay.
    B. Ramirez Was Competent to Stand Trial.
    Ramirez argues that the magistrate judge erred when he found that Ramirez
    was competent to stand trial, but Ramirez does not dispute that he failed to object
    to this pretrial ruling as required by Federal Rule of Criminal Procedure 59(a).
    Accordingly, we lack jurisdiction to address this argument. See United States v.
    Schultz, 
    565 F.3d 1353
    , 1359–62 (11th Cir. 2009).
    Ramirez argues too that the district court should have conducted an inquiry
    into his competency sua sponte both during trial and before sentencing. A
    defendant has a due process right not to be tried or convicted while incompetent.
    Drope v. Missouri, 
    420 U.S. 162
    , 171–72, 
    95 S. Ct. 896
    , 903–04 (1975). For a
    defendant to be competent to stand trial, he must have “sufficient present ability to
    consult with his lawyer with a reasonable degree of rational understanding . . .
    [and] ha[ve] a rational as well as factual understanding of the proceedings against
    him.” United States v. Rahim, 
    431 F.3d 753
    , 759 (11th Cir. 2005) (alterations in
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    original) (quoting Medina v. Singletary, 
    59 F.3d 1095
    , 1106 (11th Cir. 1995)).
    The district court must conduct a hearing sua sponte to determine whether a
    defendant is competent “if there is reasonable cause to believe that the defendant
    may presently be suffering from a mental disease or defect rendering him mentally
    incompetent to the extent that he is unable to understand the nature and
    consequences of the proceedings against him or to assist properly in his defense.”
    
    18 U.S.C. § 4241
    (a).
    A district court must conduct a competency hearing sua sponte when the
    information known to the district court is “sufficient to raise a bona fide doubt
    regarding the defendant’s competence.” Tiller v. Esposito, 
    911 F.2d 575
    , 576
    (11th Cir. 1990). We consider three factors in deciding whether the district court
    violated the due process rights of the defendant by failing to hold a competency
    hearing sua sponte: “(1) evidence of the defendant’s irrational behavior; (2) the
    defendant’s demeanor at trial; and (3) prior medical opinion regarding the
    defendant’s competence to stand trial.” 
    Id.
     It is clear from the record that the
    district court did not abuse its discretion by failing to conduct a competency
    hearing sua sponte.
    Ramirez argues that his statements to the the district court that he was an
    “independent sovereignty” free from the jurisdiction of the federal courts and that
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    as a “secured party creditor” he was protected from prosecution is evidence of
    irrational behavior and incompetence, but at least two of our sister circuits have
    rejected similar arguments. See, e.g., United States v. Brown, 
    669 F.3d 10
    , 18–19
    (1st Cir. 2012); United States v. James, 
    328 F.3d 953
    , 955 (7th Cir. 2003). As
    Judge Easterbrook explained in James, the assertion of a ludicrous legal argument
    by a defendant does not evince mental incompetence sufficient to preclude the
    government from prosecuting the defendant:
    Many litigants articulate beliefs that have no legal support—think of tax
    protesters who insist that wages are not income, that taxes are voluntary,
    or that only foreigners must pay taxes; or think of homeowners who
    contend that because their property can be traced to a land grant signed
    by President Fillmore their mortgages can’t be foreclosed. Sometimes
    these beliefs are sincerely held, sometimes they are advanced only to
    annoy the other side, but in neither event do they imply mental
    instability or concrete intellect so deficient that trial is impossible.
    
    328 F.3d at 955
     (citation omitted). Ramirez’s desire not to be prosecuted by the
    United States does not establish his incompetence.
    Ramirez also argues that his demeanor during the court proceedings
    suggests that he was incompetent to stand trial, but this argument lacks merit.
    Before the defense presented its case, the district court placed Ramirez under oath
    and asked him whether he understood his right to testify on his own behalf or not
    to do so. The district court questioned Ramirez about his interactions with his
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    lawyer. Ramirez responded to each of these inquiries with rational answers, and
    he informed the district court both that he understood the rights he was waiving
    and that he knew that he would not be able to complain about his decision to do so
    if he were convicted. And Ramirez did not hesitate to bring to the attention of the
    district court issues that were important to him. Ramirez advised the district court
    that he allegedly had not received the kosher meals that he requested. He also
    notified the district court that he did not believe that he was being treated well by
    the United States marshals while in their custody. In the light of Ramirez’s
    rational responses to the questions of the district court and his ability and
    willingness to bring to the attention of the district court several personal issues, we
    cannot conclude that Ramirez’s demeanor during the court proceedings gave the
    district court any reason to think that Ramirez was not competent to stand trial.
    Expert testimony established that Ramirez was competent to stand trial and
    that he was likely malingering to make himself look mentally unstable. Dr. Miller
    testified during the competency hearing that, when she evaluated Ramirez, he was
    able to engage in complex conversation with clear and coherent thinking. Dr.
    Miller testified that Ramirez scored in the competent range on the Georgia Court
    Competency Test. Dr. Miller also testified that the testing results and her
    observations established that Ramirez was malingering. Although Ramirez
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    presented the testimony of an attorney who had represented him in an earlier civil
    proceeding that Ramirez had memory problems and was unable to organize his
    thoughts, the testimony of a lawyer is not medical opinion. The magistrate judge
    acknowledged the testimony of Ramirez’s civil lawyer, but credited Dr. Miller’s
    testimony.
    Ramirez also argues that the district court erred when it did not inquire sua
    sponte into whether he was physically competent to stand trial. Ramirez argues
    that his need to “be excused from trial [for one day] to attend a preoperative
    surgical consult” about his colon cancer and the fact that he had surgery two
    weeks after he was convicted “should have given the court pause as to whether
    Ramirez was able to effectively assist counsel during trial.” We have explained
    that “a defendant who is ‘mentally competent’ within the meaning of 
    18 U.S.C. § 4244
     et seq. may yet be ‘physically incompetent’–unable, by virtue (for example)
    of a painful physical condition or the temporary effects of narcotics, to participate
    effectively in his own defense,” United States v. Schaffer, 
    433 F.2d 928
    , 930 (5th
    Cir. 1970), but as the district court observed, at “no time did [Ramirez] mention
    that his cancer diagnosis was an issue in either the continued progress of the trial
    or his ability to take the stand.” There is no evidence that Ramirez’s physical
    condition impaired his ability to consult with his attorney or to understand the
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    charges against him. The district court did not abuse its discretion by not
    conducting a hearing sua sponte into whether Ramirez was physically competent
    to stand trial.
    C. The Evidentiary Rulings of the District Court Do Not Require Us to Reverse
    Ramirez’s Convictions.
    We divide our discussion of Ramirez’s arguments about evidentiary rulings
    into four parts. First, we address Ramirez's argument that the district court abused
    its discretion when it admitted evidence of lab reports over Ramirez's objection.
    Second, we address Ramirez's argument that the district court improperly admitted
    the expert testimony of four witnesses. Third, we address Ramirez's argument that
    the district court abused its discretion when it admitted summary charts of
    evidence. Fourth, we address Ramirez's argument that we should apply the
    cumulative error doctrine.
    1. The District Court Did Not Abuse Its Discretion When It Admitted Evidence of
    the Lab Reports.
    Ramirez argues that the district court abused its discretion when it admitted
    lab results from Mercy Laboratory because there was “a total breakdown in the
    chain of custody” relative to the vials of blood underlying the lab results. The
    government argues that the district court did not abuse its discretion because chain
    of custody objections go to the weight rather than the admissibility of evidence.
    14
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    We agree with the government.
    Ramirez’s argument that the lab reports were not authenticated because
    there were gaps in the chain of custody fails. Federal Rule of Evidence 901
    provides that evidence is properly authenticated when there is “evidence sufficient
    to support a finding that the item in question is what the proponent claims it is.”
    Fed. R. Evid. 901(a). After a party has presented sufficient evidence to make out a
    prima facie case that the proffered evidence is what it purports to be, the evidence
    should be admitted and the trier of fact is permitted to determine whether the
    proffered evidence is what it purports to be. United States v. Caldwell, 
    776 F.2d 989
    , 1001–02 (11th Cir. 1985). “[G]aps in the chain of custody affect only the
    weight of the evidence and not its admissibility.” United States v. Roberson, 
    897 F.2d 1092
    , 1096 (11th Cir. 1990). The district court did not abuse its discretion
    when it admitted evidence of the lab reports over Ramirez’s objection that there
    were problems with the chain of custody.
    2. Although the District Court Erroneously Admitted Expert Opinion Evidence,
    the Error Was Harmless.
    Ramirez makes four arguments about the admission of expert testimony
    against him. First, Ramirez argues that the district court erred when it allowed
    Prendes to offer expert opinion about the manipulation of blood samples by R.A.
    15
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    Medical. Second, Ramirez argues that the district court erred when it allowed
    Vaden to offer expert opinion about the blood samples. Third, Ramirez argues
    that the district court erred when it allowed Vicki Nelson, a registered nurse, to
    offer medical opinion about the treatment of patients by R.A. Medical. Fourth,
    Ramirez argues that the district court erred when it allowed Ellen Lapp, an agent
    with the Federal Bureau of Investigation, to offer medical opinion about the
    treatment of patients by R.A. Medical.
    a. Prendes’s Testimony Was Inadmissible as Lay Opinion, but the Admission of
    This Testimony Was Harmless Error.
    Ramirez argues that Prendes’s testimony about the lab reports was improper
    lay opinion testimony because it was not rationally based upon her perception; it
    was not helpful; and it was based on scientific, technical, or other specialized
    knowledge within the scope of Rule 702. The government responds that Prendes’s
    testimony was admissible lay opinion testimony because “Prendes . . . drew upon
    past experiences to explain the different results and help the jury understand
    them.”
    Prendes’s opinion that Ramirez manipulated blood in a centrifuge was
    inadmissible as lay opinion testimony. Federal Rule of Evidence 701 provides
    that “[i]f the witness is not testifying as an expert, the witness’ testimony in the
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    form of opinions or inferences is limited to those opinions or inferences which are
    (a) rationally based on the perception of the witness; (b) helpful to a clear
    understanding of the witness’ testimony or the determination of a fact in issue; and
    (c) not based on scientific, technical, or other specialized knowledge within the
    scope of Rule 702.” Fed. R. Evid. 701. Prendes testified that the blood results
    from the lavender and yellow-topped vials showed significantly different values
    for blood from the same person. Prendes then testified that, in her opinion, this
    type of manipulation could be carried out by putting blood into a centrifuge.
    Prendes testified that, in her opinion, the lavender-topped vials had been spun
    inside the centrifuge to cause the red blood cells to fall to the bottom. The
    explanation of a medical lab technician that the white blood cell count of blood
    can be manipulated by separating the blood into different layers in a centrifuge
    constitutes “scientific, technical, or other specialized knowledge.” Id. 701(c). The
    district court abused its discretion by admitting this evidence under an incorrect
    legal standard.
    The government argues that the admission of Prendes’s testimony was a
    harmless error because there was “other evidence that the blood was manipulated,”
    and we agree. As the government argues, Dr. Wohlfeiler, “testified at length about
    the different blood results when he compared blood tests from other hospitals and
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    laboratories with the [R.A. Medical] results and concluded the [R.A. Medical]
    results were not ‘legitimate’ and had to have been ‘tampered with to give a certain
    result.’” Dr. Wohlfelier was a highly creditentialed expert who had published
    numerous works about HIV, including an article in the New England Journal of
    Medicine, and he provided overwhelming evidence that Ramirez had
    “manipulate[d] blood samples of Medicare beneficiaries before sending them for
    laboratory testing” as part of his scheme and artifice to defraud Medicare.
    b. Vaden’s Testimony Was Inadmissible as Lay Opinion Testimony, but Ramirez
    Fails to Meet His Burden Under Plain Error Review.
    Ramirez argues that Vaden’s testimony about the lab reports was improper
    lay opinion testimony because it was not rationally based upon his perception; it
    was not helpful; and it was based on scientific, technical, or other specialized
    knowledge within the scope of Rule 702. The government responds that Vaden’s
    testimony was admissible lay opinion testimony because “Vaden drew upon past
    experiences to explain the different results and help the jury understand them.”
    Because Ramirez did not object to Vaden’s testimony, we review for plain error.
    No plain error occurred. Like Prendes, Vaden testified that the lavender and
    yellow-topped tubes contained different platelet values and that, in his opinion,
    this difference could have resulted from the lavender-topped vials being placed
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    into a centrifuge. Vaden’s testimony constituted expert opinion, and the district
    court abused its discretion by admitting it under Rule 701. But Ramirez offers no
    argument that the error affected his substantial rights.
    c. Nelson’s Testimony Was Inadmissible as Lay Opinion Testimony, but the
    Admission of This Testimony Was Harmless.
    Ramirez argues that the district court erred when it allowed Vicki Nelson, a
    registered nurse, to offer “medical opinion about the treatment [that R.A. Medical]
    provided to its patients.” Ramirez argues that, “[b]ecause Nelson [was a] fact
    witness[], and because [she] gave medical opinions beyond any demonstrated area
    of expertise, [Nelson’s] testimony was improper.”
    The district court erred when it admitted Nelson’s testimony, but the
    admission of Nelson’s medical opinion about Ramirez’s treatment of patients at
    R.A. Medical was harmless. As the government argues, “Dr. Wohlfeiler
    . . . testified that the dosage of certain medications should be changed as a
    patient’s weight changed which was not done at” R.A. Medical.
    “Dr. Wohlfeiler. . . testified that [HIV medication] was given without medical
    justification.” In the light of Dr. Wohlfeiler’s testimony, the admission of
    Nelson’s medical testimony was harmless.
    d. The District Court Did Not Err When It Admitted Agent Lapp’s Testimony.
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    Ramirez argues that the district court erred when it allowed Ellen Lapp, an
    FBI agent, to offer “medical opinion about the treatment [that R.A. Medical]
    provided to its patients.” The government responds that Agent Lapp did not offer
    expert opinion testimony. Ramirez did not object to Agent Lapp’s testimony on
    the ground that she offered impermissible expert testimony, so we review for plain
    error. Langford, 
    647 F.3d at
    1326 n.11.
    No plain error occurred. In his brief, Ramirez does not identify any portion
    of Agent Lapp’s testimony in which Agent Lapp offered opinion testimony.
    Ramirez cites to the first two pages of Agent Lapp’s testimony, in which Agent
    Lapp described her background in law enforcement and her participation in the
    investigation of R.A. Medical. When asked at oral argument to identify Lapp’s
    expert testimony, Ramirez’s lawyer stated that the “extent” of this testimony was a
    single statement by Lapp that “the Mercy lab reports had discrepancies.”
    3. The District Court Did Not Abuse Its Discretion When It Admitted Summary
    Evidence.
    Ramirez argues that the “government . . . violated [his] rights when it
    admitted several inflammatory charts and another summary exhibit into evidence,
    rather than limiting these items to demonstrative evidence,” but we disagree.
    Federal Rule of Evidence 1006 permits parties to use charts or other exhibits to
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    summarize voluminous materials if a summary would be helpful to the jury. Fed.
    R. Evid. 1006. Whether to permit the use of summary evidence lies within the
    discretion of the district court. United States v. Richardson, 
    233 F.3d 1285
    , 1293
    (11th Cir. 2000). Although Ramirez states that the charts that the government
    introduced into evidence were “misleading,” he fails to explain how the district
    court abused its discretion when it admitted the charts. Ramirez does not dispute
    that all of the data underlying the charts was admitted into evidence and that he
    had an opportunity to cross-examine the witnesses who testified about the charts.
    No abuse of discretion occurred.
    4. The Cumulative Error Doctrine Does Not Apply.
    Ramirez argues that we should apply the cumulative error doctrine to
    reverse his convictions because the district court “made many grave errors . . .
    [that in] combination substantially prejudiced Ramirez during his trial,” but we
    again disagree. Under the cumulative error doctrine, even if individual judicial
    errors would not be sufficient to warrant reversal, the defendant may have been
    denied a fair trial when the effect of all the errors is evaluated cumulatively.
    United States v. Lopez, 
    590 F.3d 1238
    , 1258 (11th Cir. 2009). “In addressing a
    claim of cumulative error, we must examine the trial as a whole to determine
    whether the appellant was afforded a fundamentally fair trial.” 
    Id.
     (quotation
    21
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    omitted). Although the district court erred when it admitted the opinion testimony
    of Prendes, Vaden, and Nelson, the opinion testimony of those witnesses was
    cumulative of Dr. Wohfeiler’s opinion testimony that reports produced by R.A.
    Medical regarding blood samples were illegitimate and that R.A. Medical
    improperly treated patients. Dr. Wohfeiler was a recognized expert in the field of
    HIV; Prendes, Vaden, and Nelson were not. Ramirez was not deprived of a
    fundamentally fair trial.
    D. The District Court Did Not Err When It Sentenced Ramirez.
    Ramirez presents three different arguments about his sentence. He
    challenges two enhancements applied by the district court, and he argues that his
    sentence is unreasonable.
    Ramirez argues that the district court clearly erred when it applied a
    two-level enhancement for obstruction of justice, U.S. Sentencing Guidelines
    Manual § 3C1.1, but the record establishes otherwise. Section 3C1.1 provides that
    “[i]f (1) the defendant willfully obstructed or impeded, or attempted to obstruct or
    impede, the administration of justice with respect to the investigation, prosecution,
    or sentencing of the instant offense of conviction, and (2) the obstructive conduct
    related to (A) the defendant’s offense of conviction and any relevant conduct; or
    (B) a closely related offense, increase the offense level by 2 levels.” Id. Ramirez
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    argues that his deposition testimony from the civil forfeiture proceeding should
    not have been used to support the enhancement under section 3C1.1 because he
    was experiencing physical and mental problems during the deposition due to the
    2006 car accident. The only evidence presented at the sentencing hearing about
    Ramirez’s mental state during the deposition in the forfeiture case was the
    testimony of Dr. Betancourt, and he found that Ramirez’s impairment of memory
    was minor.
    Ramirez also challenges the two-level enhancement based on the finding
    that his offense involved a “conscious or reckless risk of death or serious bodily
    injury,” id. § 2B1.1(b)(14)(A), but this argument fails. Ramirez argues that the
    application of the enhancement was improper because “[t]here was no testimony
    that any patient was actually harmed” by the infusions that he gave to patients, but
    we rejected an identical argument in United States v. Mateos, 
    623 F.3d 1350
    , 1371
    (11th Cir. 2010). As we explained in Mateos, “[e]ven though there was no
    evidence that any patient was actually harmed from the treatments, the
    enhancement was nevertheless appropriate because the Guidelines provision
    focuses on the defendant’s disregard of risk rather than on the result.” 
    Id. at 1371
    .
    Ramirez argues too that the his sentence is “procedurally and substantively
    unreasonable,” but we disagree. The district court considered the relevant
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    sentencing factors and adequately explained the reasons for imposing the sentence,
    and Ramirez’s 210-month sentence is substantively reasonable. Contrary to
    Ramirez’s representations to the Court, the district court explicitly stated that it
    had considered Ramirez’s diagnosis with cancer, the statements of Ramirez’s wife,
    and Ramirez’s contributions to the community in reaching its sentence, but the
    district court reasonably ruled that the serious nature of Ramirez’s offense,
    Ramirez’s disregard for the safety of his patients, and the need to provide adequate
    deterrence and protect the public outweighed these mitigating circumstances. The
    district court did not abuse its discretion when it sentenced Ramirez to 210 months
    of imprisonment, which was in the middle of the guidelines range of 188–235
    months.
    IV. CONCLUSION
    We AFFIRM Ramirez’s convictions and sentence.
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