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Eoin P. Beirne

Member / Co-chair, White Collar Defense and Government Investigations Practice

[email protected]



Eóin Beirne, co-chair of Mintz Levin’s national White Collar and Government Investigations practice, is an accomplished white collar defense lawyer who resourcefully shepherds individual and corporate clients through government investigations and enforcement proceedings.

Eóin represents clients in a wide variety of industries in federal and state courts and before an array of investigative and enforcement bodies. Eóin routinely represents Boards of Directors or Board committees conducting internal investigations. He counsels clients on a variety of matters including grand juries, wire and mail fraud, health care fraud, public corruption, insider trading, and violations of the False Claims Act and the Foreign Corrupt Practices Act.

Eóin has successfully tried cases in federal and state courts and represents clients dealing with the DOJ, SEC, State Attorneys General, OIGs, FINRA and other regulatory and enforcement bodies.

Eóin has conducted numerous internal investigations both at the client’s own initiative and following receipt of a subpoena, Civil Investigative Demand or other notice of a government investigation. Eóin also advises clients responding to cyber-attacks and the Computer Fraud and Abuse Act.


  • Brooklyn Law School (JD, cum laude)
  • Trinity College (BA, Economics)


Representative Matters

  • Currently representing several defendants in ongoing “Varsity Blues” college admissions cases.
  • Currently representing various health care providers in connection with criminal and civil investigations. 
  • Currently representing an individual in connection with ongoing global investigations into 1MDB. 
  • Represented contractor in NTSB and grand jury investigation in connection with Merrimack Valley gas explosions – no charges brought.
  • Represented several nationally prominent elected officials with respect to grand jury investigations without any charges being brought. 
  • Convinced the Department of Justice not to charge or sue a number of government contractors in differing industries following investigations of alleged False Claims Act violations.
  • Resolved False Claims Act investigation by the Department of Justice and Massachusetts Attorney General into urgent care clinic chain. 
  • Represented several diagnostic laboratories in connection with criminal and civil investigations by the Department of Justice.
  • Represented pharmaceutical company in connection with SEC and DOJ insider trading investigation.
  • Secured complete dismissal of charges at trial in federal court involving mail and wire fraud against an individual.
  • Represented large corporation in connection with Foreign Corrupt Practice Act investigation resulting in no charges brought.
  • Represented top casino gaming company and company executives in connection with grand jury investigation.
  • Performed internal investigation for board committee in response to whistleblower complaint.
  • Routinely represent individual witnesses in connection with FBI and OIG investigations.
  • Represented technology company in connection with theft by former employee.

Recognition & Awards

  • Chambers USA: Massachusetts- Litigation: White Collar Crime and Government Investigations (2022)
  • Best Lawyers in America: Criminal Defense: White Collar (2021-2022)
  • Massachusetts Super Lawyers: Criminal Defense: White Collar (2017-2021)
  • Massachusetts Super Lawyers: Rising Star – Criminal Defense: White Collar (2013 - 2016)
  • Boston Magazine Top Lawyers – Criminal Defense-White Collar (2021)


  • Member, Boston Bar Association
  • Member, Federal Bar Association
  • Past Board Member, Massachusetts Association of Criminal Defense Lawyers (MACDL)
  • Past Member, American Bar Association’s Public Corruption and Extortion Subcommittee and the Criminal E-Discovery Taskforce

Recent Insights



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Health Care Enforcement Kept the DOJ Fraud Section Busy in 2020

March 8, 2021 | Blog | By Eoin Beirne, Grady Campion

On February 24, 2021, DOJ’s Criminal Division Fraud Section published its annual year-end summary. The Fraud Section focuses on prosecuting white-collar crime. The report summarizes enforcement activity in the past year and discusses notable cases from the Fraud Section’s three litigation units: (1) the Health Care Fraud (HCF) Unit; (2) the Foreign Corrupt Practices Act (FCPA) Unit; and (3) the Market Integrity and Major Frauds (MIMF) Unit. In summarizing the Fraud Section’s main achievements from 2020, the report also provides valuable insights on what lies ahead for the Fraud Section in 2021. This post focuses on the health care enforcement portion of the Fraud Section’s report.
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Webinar Recording: Health Care Enforcement Year in Review & 2021 Outlook

February 24, 2021 | | By Eoin Beirne, Brian Dunphy, Hope Foster, Karen Lovitch

In our annual webinar, Mintz’s Health Care Enforcement Defense team reviewed the key policy developments, settlements, and court decisions from 2020 and assessed their likely impact in 2021 and beyond.
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Health Care Enforcement Year in Review & 2021 Outlook

February 18, 2021 | | By Eoin Beirne, Brian Dunphy, Karen Lovitch, Kevin McGinty, Samantha Kingsbury, Keshav Ahuja, Grady Campion, Jane Haviland, Caitie Hill

Despite the threat of COVID-19 paralyzing much of the country in 2020, government health care fraud enforcement continued even though the Department of Justice (DOJ) had the added burden of pursuing COVID-19 related fraud. Mintz’s Health Care Enforcement Defense team has reviewed the key policy issues, statistics, settlements, and court decisions from 2020, and in this report we reflect on those developments and also predict the trends in health care enforcement in 2021 and beyond.
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FinCen Issues Statement Regarding Publication of Suspicious Activity Reports (SARs)

September 3, 2020 | Blog | By Eoin Beirne, Cory S. Flashner, Pete Michaels, Jason Burrell

On September 1, 2020, the Financial Crimes Network (“FinCEN”) issued a statement regarding various media outlets’ intent to publish Suspicious Activity Reports (“SARs”) and “other sensitive government documents”.
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COVID-19 Relief Programs: Recent Criminal Enforcement and Anticipated Trends

July 9, 2020 | Blog | By Eoin Beirne, Nicole Henry

Leading up to a webinar on July 15, 2020, we are publishing a blog series covering the risks of enforcement against companies that received COVID-19 relief funds under the CARES Act and strategies for mitigating those risks.  This third, and final, installment of our series discusses emerging and anticipated criminal enforcement involving COVID-19 relief programs.
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Health Care Enforcement Year-in-Review and 2020 Outlook: Criminal Case Developments

January 22, 2020 | Blog | By Eoin Beirne, Nicole Henry, Jason Burrell, Jane Haviland

As discussed in our article recently published by Law360, criminal health care enforcement in 2019 was in many ways a continuation of 2018, with opioid-related enforcement continuing to be the clear top priority for the Department of Justice (DOJ), in addition to DOJ's sustained focus on prosecuting individuals and data-driven identification of health care fraud.  This post provides an overview of our article, which covers these issues and our expectations for 2020 in detail.
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Criminal healthcare enforcement in 2018 once again focused heavily on opioids, targeting manufacturers, prescribers, dispensers and those who contribute to the addiction epidemic, and on prosecution of individuals for a variety of offenses.  In addition, the DOJ announced some expected policy changes related to the way it investigates and prosecutes corporations as well as the restrictions placed on corporations after resolution of government charges.  We will address each of these issues in this post and will attempt to forecast what we expect to occur in the coming year.
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Narrow Ruling for Privacy at SCOTUS in Carpenter

July 3, 2018 | Blog | By Eoin Beirne

The Supreme Court ruled, at the end of June, that seizing cell-site location information—data that tracks cell phone users’ movements—constitutes a search under the Fourth Amendment.
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Health Care Enforcement Review and 2018 Outlook: Criminal and Civil Enforcement Trends

January 8, 2018 | Blog | By Eoin Beirne, Samantha Kingsbury, Karen Lovitch

In both civil and criminal enforcement proceedings, 2017 was perhaps most notable for the cases brought against individual health care providers and small physician practice owners. 
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News & Press

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Mintz Member Eóin Beirne and Associates Jason Burrell and Nicole Henry co-authored this Law360 expert analysis article examining trends and developments in criminal health care enforcement in 2019, such as opioid-related enforcement, kickbacks and medical necessity, medical devices, U.S. Department of Justice guidance, and more. The article also posits criminal health care enforcement trends for 2020, including the increased use of data-driven investigative tools, continued opioid prosecutions, and scrutiny of new technologies or novel ways of delivering medical care.
Karen Lovitch, practice leader of the Mintz Health Law Practice, Eoin Beirne, a Member in the firm’s Litigation practice, along with Associates Samantha Kingsbury and Mackenzie Queenin authored the last in a four-part series of articles on health care enforcement trends in 2017.
Fifty-one attorneys from Mintz have been named Massachusetts Super Lawyers for 2017 and thirty have been named Massachusetts Rising Stars.
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Mintz Members will be participating in multiple panel discussions at the 2017 Boston Conference on Cyber Security hosted by Boston College and the FBI. The event presents an opportunity for leading minds to come together and fashion a more secure cyberspace.
Fifty-three Mintz attorneys have been named Massachusetts Super Lawyers for 2016 and thirty-one have been named Massachusetts Rising Stars. The findings will be published in the November 2016 issue of Boston Magazine and in a stand-alone magazine, New England Super Lawyers.