Defendants appeal their convictions for conspiracy to commit health care fraud and several substantive counts of health care fraud. Defendants primarily challenge the sufficiency of the evidence, the court’s deliberate ignorance jury instruction, a number of evidentiary rulings, and the enhancements applied to their sentences. We AFFIRM.
I.
Defendants Dennis Barson, Jr. and Dario Juarez were charged with one count of conspiracy to commit health care fraud under 18 U.S.C. § 1349 (Count 1) and nineteen counts of health care fraud under 18 U.S.C. § 1347 (Counts 2 through 20). After a jury trial, both Defendants were convicted on all 20 counts. The district court sentenced Barson and Juarez to 120 and 130 months of imprisonment, respectively, followed by three years of supervised release. The court also ordered forfeiture and restitution.
Defendant-Appellant Barson was recruited by Edgar Shakbazyan to serve as the medical director for a diagnostic clinic under Shakbazyan’s control in Houston, Texas. Shakbazyan was the manager of the clinic and handled the financial affairs of the clinic. He was indicted in a multi-count indictment in this case and was convicted pursuant to his plea of guilty.
At Shakbazyan’s request, Barson signed a blank form so the clinic could apply for and obtain a Medicare number to be used to bill Medicare for its services. Barson opened a bank account in his name where Medicare reimbursements could be deposited. Barson also signed a number of blank checks and gave them to Shakbazyan so he could draw on the account.
The clinic opened on June 8, 2009. For $7,000 per month, Barson traveled from Austin to Houston every other Saturday to review patient files. The clinic was set up to perform EKGs, ultrasounds, electrocardiograms, spirometer tests, and physical exams performed by a physician’s assistant. Medicare was billed for 9,339 procedures for tests performed on 429 beneficiaries using Barson’s Medicare number. Hundreds of the claims were for rectal sensation testing and electromyography studies of the anal or urethral sphincter, *163which the clinic could not and did not perform. At trial, several of the clinic’s patients testified they went to the clinic because they were paid to do so and some never received any medical services. Bar-son testified he never reviewed bank statements, Medicare remittances, or concern himself with any of the financial affairs of the clinic.
Defendant-Appellant Juarez worked at the clinic and claimed to be a physician’s assistant working under Barson’s supervision. Juarez, who had no formal medical training, held himself out to patients as a physician and was the medical staff member at the clinic.
Barson closed the clinic on July 30,2009, after he suspected that the clinic was not above board; however he notified no one of his suspicions.
Several suspicious circumstances eame to Barson’s attention. In the weeks leading up to closing the clinic, Barson made a number of unsuccessful attempts to reach the California doctor who reviewed ultrasounds for the clinic. Barson also learned in July that Shakbazyan was lying about his true identity. On August 4, a Medicare contractor in charge of waste, fraud, and abuse, opened an investigation into the clinic and tried unsuccessfully to contact Barson by phone. On August 11, Barson closed the clinic bank account set up to receive Medicare reimbursements. Upon receiving his 1099 tax form in February 2010, Barson learned that the clinic’s bank account in his name received approximately $1.2 million in Medicare reimbursements. In his testimony, he claimed this was his first notice that this large sum had been deposited in his account during the approximately two months the clinic had been open.
II.
Sufficiency of the evidence challenges are reviewed de novo.1 In doing so, this Court must determine whether “any rational trier of fact could have found the essential elements of the crime beyond a reasonable doubt.”2 The Court should accept “all credibility choices and reasonable inferences made by the trier, of fact which tend to support the verdict.”3
III.
Sufficiency of the Evidence
Defendants’ primary challenge on appeal is to the sufficiency of the evidence to establish both the conspiracy count and the substantive counts for health care fraud.
To establish a conspiracy to commit health care fraud, the government must show “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.”4 The agreement may be silent and informal between the conspirators.5 Further, “voluntary participation may be inferred from a collection of circumstances, and knowledge *164may be inferred from surrounding circumstances.”6 The defendants need not have personally submitted the necessary forms requesting reimbursement from Medicare to be guilty of health care fraud or conspiracy to commit health care fraud.7 The government may use direct or circumstantial evidence to prove each element.8
At trial, both Barson and Juarez argued they had no knowledge of the fraudulent activity, let alone an agreement to commit fraud.
Barson based his argument that he had no knowledge of fraudulent activity on his lack of experience. Before taking the job as the medical director for the clinic, Bar-son was a physician in the Navy and worked a short time in private practice. When he was hired by Shakbazyan to work for the clinic, Barson was working as a neurology resident in Austin, Texas. On a resident’s salary, he argued, he needed the extra money the job at the clinic would provide. Barson had no prior experience with Medicare or medical billing practices in any of his prior positions. Barson argued that he had no way of knowing about the fraudulent scheme because he never saw any patient files that included many of the tests the clinic billed Medicare for. Barson testified that the patient files he reviewed included services that the clinic was set up to provide: EKGs, ultrasounds, electrocardiograms, spirometer tests, and physical exams performed by a physician’s assistant. Because he was hired in this limited role to review patient files set aside for him twice a month, Barson maintained that he had no way of knowing that the clinic was engaged in fraudulently billing Medicare.
Similarly, Juarez argued that even though he was impersonating a physician’s assistant, he had no knowledge of or access to any of the facility’s billing systems.
The government presented ample circumstantial evidence to establish both Defendants’ knowledge of the ongoing health care fraud. Barson signed documents in blank allowing the clinic to bill under his Medicare identification number and opened a bank account in his name to receive Medicare reimbursements. He signed a number of blank checks to permit Shakbazyan to draw on the account. He allowed the bank statements to be sent to the clinic and never reviewed them. Bar-son received a significant sum, $7,000 per month, for reviewing patients’ charts every other Saturday. Barson admitted to an FBI investigator that despite his suspicions and bad feelings about the clinic, he reported his suspicions to no one. He quietly closed the clinic on July 30. Barson did not monitor the bank account in his name or review any Medicare remittances that went to the clinic. Upon receiving his 1099 tax form showing that the clinic bank account received nearly $1.2 million, Bar-son again failed to contact Medicare to report his concerns.
The government also established that Juarez was aware he was participating in a scheme to commit Medicare fraud. Juarez held himself out as a “doctor” at the clinic and falsely claimed to Barson that he was a physician’s assistant, the clinic’s on-site medical staff member. Juarez saw almost all of the patients and turned a blind eye to the fact that most of the so-called patients had no need for medical care and that many received no medical care. He saw large numbers of patients *165lining up outside the clinic daily after being delivered to the clinic by the same white van. Juarez had access to the clinic’s mail including the bank statements and Medicare remittances. Juarez was paid $20,000 for his work, a large sum for an unlicensed individual to pose as a physician’s assistant. He lied to investigators about the payments he received. Juarez also gave conflicting testimony to an FBI investigator about an alleged break in at the clinic and missing patient flies.
Barson also argues that the evidence was insufficient to establish an “agreement” to commit health care fraud. His arguments closely track his arguments on the knowledge element and fails for similar reasons.
The evidence established that Barson and Shakbazyan agreed that (1) Barson would apply for a Medicare number; (2) Barson would allow the clinic to use that number to bill Medicare; and (3) Barson would receive $7,000 per month for reviewing flies every other Saturday. The evidence established that Shakbazyan set up the fraudulent scheme and had intimate knowledge of the details of the fraud.
Juarez agreed with Shakbazyan to work at the clinic as the medical staff member and hold himself out as a physician’s assistant to Barson and as a physician to the patients.
The jury was also entitled to find that the Defendants committed health care fraud on the substantive counts of the indictment. Each substantive count was based on a separate request for Medicare reimbursements that the government established were not for medical services needed or provided. 18 U.S.C. § 1347 sets forth the elements of the offense:
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].9
Here, the jury was entitled to convict Defendants pursuant to the Pinkerton doctrine, which imposes criminal liability on all conspirators for the acts of other co-conspirators when those acts are foreseeable.10 Because the evidence was sufficient to convict Defendants on the conspiracy count, the jury was entitled to convict them on the substantive counts as well. The Defendants were responsible for the acts of co-conspirator Shakbazyan who actually submitted or caused to be submitted the fraudulent claim forms for Medicare reimbursement.
Deliberate Ignorance Instruction
Defendants argue next that the district court erred in giving the deliberate ignorance instruction.11 The evi*166dence summarized above raised a legitimate issue of whether Barson and Juarez turned a blind eye to the fact that Medicare was being billed large sums for services not performed. Barson’s acts in signing blank forms to allow Medicare to be billed for procedures under his number, opening a bank account in his name for the reimbursements, and signing blank checks for Shakbazyan to draw on the account was sufficient to permit the jury to infer that Barson took pains to avoid personal knowledge of incriminating facts. Barson’s failure to review any remittances from Medicare or bank statements from his own bank account could have been viewed similarly. Juarez relied on his lack of medical training and his unfamiliarity with the Medicare forms to argue that he suspected no wrongdoing. Our precedent supports submission of “a deliberate ignorance instruction ‘when a defendant claims a lack of guilty knowledge and the proof at trial supports an inference of deliberate indifference.’ ”12 The record clearly authorized the district court to give the instruction and the court did not abuse its discretion in giving it.
Object of the Conspiracy
Next, Defendants argue that the district court abused its discretion by rejecting their proposed instruction on the object of the conspiracy. Defendants complain that the district court did not instruct the jury that the government was required to prove the object of the conspiracy in the exact language of the indictment. The court instructed the jury that the object of the conspiracy was “health care fraud, in violation of Title 18, United States Code, Section 1347.” At Barson’s request, the court also charged:
Specifically, as to each defendant under consideration, it was an object of the conspiracy that the defendant and others known and unknown to the grand jury unlawfully enrich themselves by falsely and fraudulently representing to Medicare that certain services and procedures were performed for Medicare beneficiaries when, in fact, the defendant well knew the services and procedures were not being performed.13
The Defendants contend the court erred in failing to instruct the jury that the government was required to prove these facts. We find no abuse of discretion in the district court’s instruction. The district court instructed the jury on the object of the conspiracy that tracks the Fifth Circuit pattern jury instructions, which we have approved.14 The above instruction makes it *167clear that it is describing an object of the conspiracy. The government is not required to prove all facts alleged in the indictment as long as it proves certain facts which satisfy the elements of the offense.
Evidentiary Rulings
Defendants raise a number of evidentia-ry objections in brief including: whether the district court erred in admitting the testimony of the executive director of the Texas Medical Board; whether the cross-examination of the FBI Case Agent was appropriately limited to the Agent’s direct examination testimony; whether the exclusion of the plea colloquy of Shakbazyan was proper; and whether the exclusion of evidence gathered by a police officer in California from an unindicted co-conspirator was proper. We have reviewed Defendants’ arguments and find no abuse of discretion in the evidentiary rulings by the district court.
Sentencing
Barson disputes two enhancements applied to his sentence. Juarez joins Barson in objecting to the first enhancement.
First, Defendants argue that the district court erred in concluding the 429 patients or Medicare beneficiaries for whom the conspirators falsely claimed benefits were “victims” under the guidelines.15 We agree with the government that Application Note 4(E) of U.S.S.G. § 2B1.1 defines “victim” in a way that encompasses the Medicare beneficiaries because it includes “any individual whose means of identification was used unlawfully or without authority.”16 The district court did not err in applying this enhancement.
Second, Barson argues that the application of a sentencing enhancement for obstruction of justice under U.S.S.G. § 3C1.117 was inappropriate. During sentencing, the government argued that Bar-son’s testimony was laden with falsehoods designed to mislead the jury including: Barson’s claim that he trusted Shakbazyan so thoroughly he signed forms in blank on the day he met Shakbazyan and failed to ask for information about the Medicare application; Barson opened a bank account to receive reimbursements from Medicare, but did not know where the statements were being sent; and Barson failed to ask Juarez for his credentials or register the *168supervision of him with the Texas Medical Board. The district court who heard Bar-son’s testimony agreed.18 Our review of the record satisfies us that the district court, who observed Barson testify, did not abuse its discretion in finding that Barson’s testimony lacked credibility and was untruthful in his testimony.
Prosecutorial Misconduct
Defendants allege that several statements made by prosecutors during trial amounted to prosecutorial misconduct. Some statements were objected to during trial and some objections are raised on appeal. We have reviewed these arguments and statements and find no error by the district court in permitting these arguments.
IV.
The district court committed no reversible error and we therefore affirm the Defendants’ convictions and sentences.
. United States v. Umawa Oke Imo, 739 F.3d 226, 235 (5th Cir. 2014) (citing United States v. Grant, 683 F.3d 639, 642 (5th Cir. 2012)).
. Jackson v. Virginia, 443 U.S. 307, 319, 99 S.Ct. 2781, 61 L.Ed.2d 560 (1979); Umawa Oke Imo, 739 F,3d at 235 (quoting United States v. Moreno-Gonzalez, 662 F.3d 369, 372 (5th Cir. 2011)).
. Umawa Oke Imo, 739 F.3d at 235.
. United States v. Delgado, 668 F.3d 219, 226 (5th Cir. 2012).
. United States v. Grant, 683 F.3d 639, 643 (5th Cir. 2012) (citing United States v. Williams-Hendricks, 805 F.2d 496, 502 (5th Cir. 1986)).
, United States v. Stephens, 571 F.3d 401, 404 (5th Cir. 2009).
. Umawa Oke Imo, 739 F.3d at 235.
. Id. (citing Delgado, 668 F,3d at 226).
. 18 U.S.C. § 1347(a).
. Pinkerton v. United States, 328 U.S. 640, 66 S.Ct. 1180, 90 L.Ed. 1489 (1946).
. The district court instructed the jury,
The word "knowingly,” as that term has been used from time to time in these instructions, means that the act was done voluntarily and intentionally, not because of mistake or accident, You may find that a defendant had knowledge of a fact if you find that the defendant deliberately closed his eyes to what would otherwise have been obvious to him. While knowledge on the part of the defendant cannot be established merely by demonstrating that the defendant was negligent, careless, or foolish, knowledge can be inferred if the defendant delib*166erately blinded himself to the existence of a fact. However, if you find that the defendant actually believed the Medicare claims being filed were not fraudulent, then you must acquit the defendant.
See Fifth Circuit Pattern Jury Instructions (Criminal Cases) 1.37A.
. United States v. Vasquez, 677 F.3d 685, 696 (5th Cir. 2012) (quoting United States v. Threadgill, 172 F.3d 357, 368 (5th Cir. 1999)).
. The district court instructed the jury on the following elements of health care fraud:
For you to find one or both defendants guilty of this crime, you must be convinced that the government has proved for the defendant then under consideration each of the following beyond a reasonable doubt: First, that two or more persons made an agreement to commit the crime of health care fraud as charged in the indictment. Second: That Dennis B. Barson, Jr. and Dario Juarez knew of the unlawful purpose of the agreement and joined in it willfully, that is, with the intent to further the unlawful purpose.
.United States v. Whitfield, 590 F.3d 325, 354 (5th Cir. 2009) (“It is well-settled that a district court does not err by giving a charge that tracks this Circuit’s pattern jury instructions and that is a correct statement of the law.”) (citing United States v. Turner, 960 F.2d 461, 464 (5th Cir. 1992)).
. See U.S.S.G. § 2Bl.l(b)(2)C) (2009).
. U.S.S.G. § 2B1.1 cmt. n.4(E), The Application Notes were amended in 2009 to include this additional definition of "victim.” The amended Note reads, "For purposes of subsection (b)(2), in a case involving means of identification ‘victim’ means (i) any victim as defined in Application Note 1; or (ii) any individual whose means of identification was used unlawfully or without authority.” Id. Application Note 1 defined victim as "(A) any person who sustained any part of the actual loss ...; or (B) any individual who sustained bodily injury as a result of the offense.” U.S.S.G. § 2B1.1 cmt. n.l (2008). Shakbaz-yan, who pleaded guilty on the first day of trial, challenged this application of the six-level sentencing enhancement under the Ex Post Facto Clause because the definition of "victim” was amended to include the unauthorized use of individuals’ information. This same panel determined that Shakbazyan’s argument was foreclosed by Fifth Circuit precedent and affirmed the district court’s sentence. United States v. Shakbazyan, No. 15-20426, at 4-7, 9.
.The guideline states,
If (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.
U.S.S.G. § 3C1.1.
. The district court stated during sentencing, “Well, of course, I was here and listened to [Barson’s] testimony. I agree with [the government] that much of it was not credible; and because he testified not credibly or untruthfully, that does — that is an obstruction of justice.”