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No. 10265676
United States Court of Appeals for the Ninth Circuit
United States v. Pham
No. 10265676 · Decided November 5, 2024
No. 10265676·Ninth Circuit · 2024·
FlawFinder last updated this page Apr. 2, 2026
Case Details
Court
United States Court of Appeals for the Ninth Circuit
Decided
November 5, 2024
Citation
No. 10265676
Disposition
See opinion text.
Full Opinion
FOR PUBLICATION
UNITED STATES COURT OF APPEALS
FOR THE NINTH CIRCUIT
UNITED STATES OF AMERICA, No. 23-1175
D.C. No.
Plaintiff - Appellee,
8:19-cr-00010-
JLS-1
v.
DZUNG AHN PHAM,
OPINION
Defendant - Appellant.
Appeal from the United States District Court
for the Central District of California
Josephine L. Staton, District Judge, Presiding
Argued and Submitted September 12, 2024
Pasadena, California
Filed November 5, 2024
Before: Mary M. Schroeder, Ryan D. Nelson, and Eric D.
Miller, Circuit Judges.
Opinion by Judge Schroeder
2 USA V. PHAM
SUMMARY *
Criminal Law
The panel affirmed the district court’s denial of Dzung
Ahn Pham’s motion to withdraw his guilty plea to
conspiracy to distribute controlled substances in violation of
the Controlled Substances Act (CSA).
Pham, formerly a licensed physician, admitted in his plea
agreement to conspiring with a pharmacist to prescribe and
distribute over 150,000 narcotic pills, and to issuing the
prescriptions knowing he was doing so “outside the usual
course of professional medical practice and without a
legitimate medical purpose.” This admission echoes the
applicable regulation, 21 C.F.R. § 1306.04(a), that renders
such prescriptions ineffective.
Pham sought to withdraw his plea on the ground that it
was not knowing and voluntary, citing Ruan v. United States,
597 U.S. 450 (2022), which the Supreme Court decided a
few months before he entered his plea. He contends that he
was not adequately apprised that Ruan requires the
government to prove that he knew he was not “authorized”
under the CSA to issue the prescriptions, citing the failure of
the plea agreement and colloquy to expressly use the word
“unauthorized” or the phrase “not authorized.” Pham
maintains that he believed he was authorized to write the
prescriptions, and his admission failed to establish he
intended to violate the statute, or knew he was doing so.
*
This summary constitutes no part of the opinion of the court. It has
been prepared by court staff for the convenience of the reader.
USA V. PHAM 3
The panel rejected this argument. Phan’s admissions to
knowingly and intentionally committing acts that were not
authorized by the CSA—i.e., to knowingly issuing
prescriptions outside the usual course of professional
medical practice and without a legitimate medical purpose—
supplied the requisite proof that he knowingly and
intentionally acted in unauthorized manner. Pham therefore
failed to show that his guilty plea was unknowing or
involuntary, and the district court did not err in denying his
motion to withdraw the plea.
COUNSEL
Beau B. Brindley (argued), Law Offices of Beau B.
Brindley, Chicago, Illinois, for Defendant-Appellant.
Brett A. Sagel (argued), Assistant United States Attorney,
Chief, Corporate and Securities, Fraud Strike Force;
Gregory W. Staples, Assistant United States Attorney; Bram
M. Alden, Assistant United States Attorney, Chief, Criminal
Appeals Section; E. Martin Estrada, United States Attorney;
United States Department of Justice, Office of the United
States Attorney, Santa Ana, California; David R. Friedman,
Assistant United States Attorney, United States Department
of Justice, Office of the United States Attorney, Los
Angeles, California; for Plaintiff-Appellee.
4 USA V. PHAM
OPINION
SCHROEDER, Circuit Judge:
Dzung Ahn Pham, formerly a licensed physician, seeks
to withdraw his guilty plea to conspiracy to distribute
controlled substances in violation of the Controlled
Substances Act (CSA), 21 U.S.C. § 846. The Act
criminalizes the distribution of narcotics “[e]xcept as
authorized.” 21 U.S.C. § 841(a). It does not describe when
distribution is “authorized,” but the applicable regulation
provides that, “to be effective,” a prescription “must be
issued for a legitimate medical purpose by an individual
practitioner acting in the usual course of his professional
practice.” 21 C.F.R. § 1306.04(a).
In his plea agreement, Pham admitted to conspiring with
a pharmacist to prescribe and distribute over 150,000
narcotic pills during a nearly six-year period, and to issuing
the prescriptions knowing he was doing so “outside the usual
course of professional medical practice and without a
legitimate medical purpose.” The admission echoes the
applicable regulation that renders such prescriptions
ineffective. See 21 C.F.R. § 1306.04(a).
Pham nevertheless seeks to withdraw his plea on the
ground that it was not knowing and voluntary, citing Ruan v.
United States, 597 U.S. 450 (2022), which the Supreme
Court decided a few months before he entered his plea.
Pham contends that he was not adequately apprised that
Ruan requires the government to prove that he knew he was
not “authorized” under the CSA to issue the prescriptions.
He hangs his hat on the failure of the plea agreement and
colloquy to expressly use the word “unauthorized” or the
phrase “not authorized.” He maintains that he believed he
USA V. PHAM 5
was authorized to write the prescriptions, and his admission
failed to establish he intended to violate the statute, or knew
he was doing so. Yet the agreement and colloquy clearly
stated that Pham knowingly issued prescriptions outside the
usual course of professional medical practice and without a
legitimate medical purpose. The district court denied the
motion to withdraw the plea, holding that the indictment,
plea agreement, and colloquy all incorporated the elements
of the offense, including the standard of guilty knowledge,
or mens rea, required for conviction. We affirm.
BACKGROUND
Dzung Ahn Pham was a physician, and his co-defendant
was a pharmacist. Both were licensed to practice in
California. Pham was charged with multiple substantive
counts of distribution of controlled substances, and one
count of conspiring with the pharmacist to “knowingly and
intentionally” distribute various narcotics, including opiates
and amphetamines, to various patients in return for
payments. The First Superseding Indictment charged Pham
with taking these actions with intent “to act outside the usual
course of professional practice and without a legitimate
medical purpose” in violation of § 841(a). In September
2022, Pham entered into a written agreement to plead guilty
only to the conspiracy count, and his counsel certified to
having “discussed every part of this agreement” with Pham.
The factual basis of the agreement repeatedly stated that
Pham conspired with the intent to distribute the drugs,
knowing the prescriptions were issued “outside the usual
course of professional practice and without a legitimate
medical purpose.”
The plea colloquy took place on October 22, 2022.
There, Pham confirmed that he had reviewed both the
6 USA V. PHAM
indictment and the plea agreement with his attorney, that
they had discussed the elements of the charge, and that Pham
understood the agreement and the elements. The
government read the factual basis from the plea agreement
into the record, including Pham’s admission that he
prescribed controlled substances with intent to act outside
the usual course of professional practice and without a
legitimate medical purpose. The court asked Pham if
everything the government had said was correct, including
the statements about Pham’s “knowledge” and “intent.”
Pham responded in the affirmative, acknowledging that he
was pleading guilty because he did the acts charged in the
indictment and was in fact guilty.
Shortly before the scheduled sentencing hearing,
however, Pham, represented by new counsel, filed a motion
to withdraw his guilty plea under Federal Rule of Criminal
Procedure 11(d)(2)(B). That rule permits withdrawal upon
a showing of a “fair and just reason.” Pham invoked the
Supreme Court’s decision in Ruan v. United States to argue
he was not informed that the “government would have to
prove [he] subjectively knew or intended that [he] was not
authorized . . . to issue the prescriptions.” He admitted he
“knew [the] prescriptions were outside the scope of general
practice and for purposes other doctors might not deem
legitimate,” but swore he “never believed that [he] lacked
the authority to write them.” The district court denied the
motion to withdraw, holding that the intent requirement
charged in the indictment and admitted in the plea agreement
and the colloquy was consistent with Ruan. The court
eventually sentenced Pham on the conspiracy charge to 151
months, and he now appeals the denial of his motion to
withdraw.
USA V. PHAM 7
ANALYSIS
We deal first with the government’s threshold position
that Pham’s appeal must be dismissed because the plea
agreement contained a waiver of Pham’s right to appeal.
That waiver, however, contained an exception for an appeal
“based on a claim that defendant’s guilty plea was
involuntary.” In this appeal, Pham presents a claim that his
plea was involuntary because he was inadequately informed
of what the government had to prove. Regardless of the
merits of that claim, it has not been waived, and we have
appellate jurisdiction to consider it.
Pham’s claim boils down to his contention that he
believed he was “authorized” to write the prescriptions, and
that if he had been advised that the government had to prove
that he knew he was unauthorized to write them, he would
not have entered the plea. The argument hinges on the
Supreme Court’s opinion in Ruan, which was, contrary to
Pham’s suggestion in his briefs, decided several months
before, not after, he entered his plea. In Ruan, the Supreme
Court held that the government must prove not only that a
defendant issued prescriptions that were not in fact
authorized under the CSA but also that the defendant wrote
the prescriptions with the knowledge or intent that he was
doing so without authorization. 597 U.S. at 454–55. And in
so holding, the Court recognized that while § 841 itself does
not in so many words define what prescriptions are
“authorized,” the applicable regulation does. The Court
described the legal framework as follows:
A provision of the Controlled Substances
Act, codified at 21 U.S.C. § 841, makes it a
federal crime, “[e]xcept as authorized[,] . . .
for any person knowingly or intentionally . . .
8 USA V. PHAM
to manufacture, distribute, or dispense . . . a
controlled substance,” such as opioids. 84
Stat. 1260, 21 U.S.C. § 841(a) (emphasis
added). Registered doctors may prescribe
these substances to their patients. But, as
provided by regulation, a prescription is only
authorized when a doctor issues it “for a
legitimate medical purpose . . . acting in the
usual course of his professional practice.” 21
C.F.R. § 1306.04(a) (2021).
Id. at 454.
The Court then framed the issue: “The question before
us concerns the state of mind that the Government must
prove to convict [practitioners] of violating the statute.” Id.
The Court provided a succinct answer:
We hold that the statute’s “knowingly or
intentionally” mens rea applies to
authorization. After a defendant produces
evidence that he or she was authorized to
dispense controlled substances, the
Government must prove beyond a reasonable
doubt that the defendant knew that he or she
was acting in an unauthorized manner, or
intended to do so.
Id.
In Ruan, the jury had been instructed that a doctor acts
lawfully when “he prescribes in good faith . . . in accordance
with the [generally accepted] standard of medical practice”
but violates § 841 by prescribing without “a legitimate
medical purpose” or “outside the usual course of . . .
USA V. PHAM 9
practice.” Id. at 455–56 (internal quotation omitted). The
jury was not instructed that the doctor had to do so
knowingly or intentionally. The Tenth Circuit had affirmed
the conviction, but the Supreme Court vacated its decision,
holding that the government had to prove not only that the
conduct was unauthorized, but also that the defendant knew
or intended it to be unauthorized. See id. at 468.
In this case, we are not dealing with jury instructions but
with a defendant’s plea agreement and colloquy with a
district judge. In both, Pham admitted to having the requisite
knowledge of the elements that made his prescriptions not
authorized: he knew the prescriptions were not for a
legitimate medical purpose, and he knew he was not acting
in the usual course of medical practice. As the Supreme
Court explained in Ruan, “a prescription is only authorized
when a doctor issues it ‘for a legitimate medical purpose . . .
acting in the usual course of his professional practice.’” Id.
at 454 (quoting 21 C.F.R. § 1306.04(a) (2021)).
Since Ruan was decided, other circuits have applied it to
require the government to prove knowledge or intent as to
the elements of authorization that Pham admitted to having
in this case. See United States v. Hofschulz, 105 F.4th 923,
929 (7th Cir. 2024) (upholding jury instructions because
they “explained that the government needed to prove . . . that
the defendants intentionally distributed drugs outside the
usual course of medical practice and not for a legitimate
medical purpose,” and “Ruan requires nothing more”);
United States v. Titus, 78 F.4th 595, 602 (3d Cir. 2023)
(upholding as consistent with Ruan jury instructions that
required showing a defendant “knowingly or intentionally
distributed controlled substances outside the usual course of
professional practice and not for a legitimate medical
purpose” (internal quotation marks omitted)); United States
10 USA V. PHAM
v. Kim, 71 F.4th 155, 164 (4th Cir. 2023) (holding that an
indictment was “consistent with the requirements of Ruan”
where it alleged that the defendant had conspired and issued
prescriptions while “intending to act outside the usual course
of professional practice and not for a legitimate medical
purpose” (emphasis removed)); United States v. Ajayi, 64
F.4th 243, 247–48 (5th Cir. 2023) (upholding as consistent
with Ruan jury instructions, for conspiracy to distribute
controlled substances, that required proof that defendant
knew of the conspiracy’s unlawful purpose and “understood
the illegitimate nature of his conduct,” which the court
understood to mean acting without a legitimate medical
purpose); United States v. Duldulao, 87 F.4th 1239, 1251
(11th Cir. 2023) (explaining that Ruan “requires the
government to prove that ‘the defendant knowingly and
intentionally acted in an unauthorized manner’—that the
defendant knew he was acting outside the usual course of
professional practice or intended to” (citation omitted)). We
do not read the Tenth Circuit’s post-Ruan decision in United
States v. Kahn to be in any way inconsistent with these
decisions, or to suggest something more must be shown with
respect to the lack of authorization. See 58 F.4th 1308, 1316
& n.4 (10th Cir. 2023) (explaining that “Ruan holds that an
unreasonable pharmacist may not be convicted if he did not
intend to act in an unauthorized way.”). The Tenth Circuit
simply held that the jury instructions were inconsistent with
Ruan because they treated the two parts of authorization as
separate grounds and permitted conviction for issuing
prescriptions that were “objectively not in the usual course
of professional practice.” Id.
In Pham’s affidavit submitted in support of his motion to
withdraw, Pham stressed that although he knew the
prescriptions may have been illegitimate, he “never believed
USA V. PHAM 11
that [he] lacked the authority to write them.” The Court in
Ruan anticipated that practitioner-defendants would rely on
their licensed prescribing authority to rebut charges of
unlawful distribution. The Court explained that its holding
“means that once a defendant meets the burden of producing
evidence that his or her conduct was ‘authorized,’ the
Government must prove beyond a reasonable doubt that the
defendant knowingly or intentionally acted in an
unauthorized manner.” Id. (quoting 21 U.S.C. § 841(a)).
Pham’s admissions supplied such proof here.
In both the plea agreement and the colloquy, Pham
admitted to knowingly and intentionally committing acts
that were not authorized by the CSA. Pham has failed to
show that his guilty plea was unknowing or involuntary. The
district court did not err in denying his motion to withdraw
the plea.
AFFIRMED.
Plain English Summary
FOR PUBLICATION UNITED STATES COURT OF APPEALS FOR THE NINTH CIRCUIT UNITED STATES OF AMERICA, No.
Key Points
01FOR PUBLICATION UNITED STATES COURT OF APPEALS FOR THE NINTH CIRCUIT UNITED STATES OF AMERICA, No.
02Staton, District Judge, Presiding Argued and Submitted September 12, 2024 Pasadena, California Filed November 5, 2024 Before: Mary M.
03PHAM SUMMARY * Criminal Law The panel affirmed the district court’s denial of Dzung Ahn Pham’s motion to withdraw his guilty plea to conspiracy to distribute controlled substances in violation of the Controlled Substances Act (CSA).
04Pham, formerly a licensed physician, admitted in his plea agreement to conspiring with a pharmacist to prescribe and distribute over 150,000 narcotic pills, and to issuing the prescriptions knowing he was doing so “outside the usual course
Frequently Asked Questions
FOR PUBLICATION UNITED STATES COURT OF APPEALS FOR THE NINTH CIRCUIT UNITED STATES OF AMERICA, No.
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