Eoin P. Beirne
Member / Co-chair, White Collar Defense and Government Investigations Practice
+1.617.348.1707
Eóin Beirne is a nationally recognized trial lawyer and career defense lawyer who represents companies, executives, public officials, and board committees in their most sensitive government investigations and high-stakes criminal and civil enforcement matters. Co-chair of Mintz’s White Collar Defense & Government Investigations Practice, Eóin is known for achieving quiet, early-stage resolutions with the DOJ, SEC, State Attorneys General, and other enforcement agencies — and for winning when cases must be tried.
Eóin has secured acquittals, dismissals, and declinations in complex cases involving allegations of securities fraud, health care fraud, government contracting fraud, public corruption, insider trading, FCPA violations, and False Claims Act liability. He regularly advises corporate boards and special committees on internal investigations, whistleblower allegations, and crisis-driven compliance matters, and has deep experience guiding clients through parallel criminal, civil, and regulatory inquiries. Eóin’s investigations have helped clients avoid government charges and reputational damage, negotiate favorable resolutions and get back to business.
When a negotiated resolution is not possible, Eóin is a veteran courtroom advocate who served as trial counsel in the only full trial acquittal obtained in the nationwide “Varsity Blues” prosecution. Recognized by Chambers USA and named a Litigation Trailblazer by the National Law Journal, he has represented clients in some of the largest and highest-visibility investigations in recent years, including matters involving the DOJ Special Counsel, the global 1MDB investigation, federal cybercrime inquiries, NTSB investigations, and post-incident infrastructure failures.
Eóin Beirne is a nationally recognized trial lawyer and career defense lawyer who represents companies, executives, public officials, and board committees in their most sensitive government investigations and high-stakes criminal and civil enforcement matters. Co-chair of Mintz’s White Collar Defense & Government Investigations Practice, Eóin is known for achieving quiet, early-stage resolutions with the DOJ, SEC, State Attorneys General, and other enforcement agencies — and for winning when cases must be tried.
Experience
Representative Matters
- Led defense team securing the lone trial acquittal of a charged parent in the “Varsity Blues” federal admissions cases.
- Obtained declination for a top executive in the multibillion-dollar global 1MDB investigation after strategic advocacy to DOJ.
- Avoided all charges for a federal defense contractor following voluntary self-disclosure of potential FCA and criminal issues.
- Represented multiple individuals and entities in DOJ Special Counsel’s post-2020 election investigations with no charges brought.
- Convinced DOJ not to charge medical practices, laboratories, and government contractors in numerous FCA, Anti-Kickback, and fraud matters.
- Trial counsel in a high-profile criminal fraud trial in the Southern District of New York.
- Achieved complete trial dismissal of federal wire and mail fraud charges against an individual in a large-scale fraud case in the District of Massachusetts.
- Represented corporations and executives in SEC and DOJ insider trading investigations, securing declinations.
- Guided a public utility contractor through NTSB and federal grand jury investigations arising from the Merrimack Valley explosions — with no charges filed.
- Conducted numerous board-level internal investigations following whistleblower complaints, CIDs, subpoenas, and cyber incidents.
- Represented national and locally elected officials in Congressional and grand jury investigations.
viewpoints
DOJ Criminal Fraud Section 2025 Year in Review – Health Care Fraud Is Front and Center
February 6, 2026 | Blog | By Karen Lovitch, Eoin Beirne, Nick A. LaPalme
On January 22, 2026, the Department of Justice (DOJ or the Department) Criminal Fraud Section issued its 2025 Year in Review summary (YIR Summary). Our more detailed analysis of the full YIR Summary can be found here. DOJ’s Health Care Fraud Unit (the HCF Unit) is focused on “prosecuting complex health care fraud matters and cases involving the illegal prescription, distribution, and diversion of controlled substances.” To carry out its mission, in 2025, the HCF Unit operated 8 Health Care Fraud Strike Forces in 26 federal judicial districts across the nation. The HCF Unit’s reported average return on investment is $106.76 per $1 spent.
DOJ Criminal Fraud Section 2025 Year in Review: Major Reorganization Confirms Shifting Enforcement Landscape
January 30, 2026 | Blog | By Eoin Beirne, Nick A. LaPalme
The Department of Justice's (DOJ or the Department) Criminal Fraud Section has undergone its most significant reorganization in years, according to its recently released 2025 Year in Review. Those changes and the current climate of enforcement uncertainty require more vigilance, not less, from corporate compliance and law departments.
Streamlined DOJ Resolutions: Declinations, NPAs, and DPAs Explained — EnforceMintz
January 20, 2026 | Article | By Eoin Beirne, Nick A. LaPalme
Learn how DOJ’s expanded Voluntary Self-Disclosure policy and evolving use of NPAs and DPAs create new opportunities for health care companies to resolve enforcement actions. Explore strategies for cooperation, remediation, and compliance.
“False” Sense of Security: DOJ Announces False Claims Act Settlements Related to Failure to Comply with Cybersecurity Requirements
August 4, 2025 | Blog | By Eoin Beirne, Karen Lovitch, Keshav Ahuja
On July 31, 2025, the United States Department of Justice (DOJ) announced a pair of settlements with companies accused of having violated the False Claims Act (FCA) by falsely representing their compliance with certain cybersecurity requirements applicable to federal contractors. These two settlements highlight key aspects of DOJ’s enforcement priorities: (1) DOJ’s strong focus on enforcing the FCA in the cybersecurity space, and (2) DOJ’s willingness to reward companies that self-disclose violations. All government contractors certifying compliance with regulatory and contractual requirements must stay vigilant and take the steps needed to comply.
Dodging Duties: The Ninth Circuit Affirms an Expansive Application of the False Claims Act Consistent with Trump Administration Priorities to Target and Combat Customs Fraud and Tariff Evasion
July 2, 2025 | Blog | By Eoin Beirne, Nick A. LaPalme, Keshav Ahuja
On June 23, 2025, the United States Court of Appeals for the Ninth Circuit affirmed a district court judgment in a case in which the jury found the defendant knowingly made false statements on customs forms to avoid paying duties on Chinese imports. The decision affirms an expansive application of the False Claims Act (“FCA”) that plays directly into the hands of the Trump administration’s evolving enforcement priorities.
Webinar Recording: DOJ Enforcement in the Trump Administration: Priorities, Shifts, and Legal Impacts
June 18, 2025 | Webinar | By Eoin Beirne, Erek Barron, Karen Lovitch, Jennifer Rubin
This in-depth webinar examines DOJ’s enforcement priorities and topics such as recent False Claims Act settlements (which go beyond health care fraud), enforcement risks and best practices, and whistleblower risks and protections from an employment law perspective.
Voluntary Self-Disclosure and Whistleblower Awards Initiatives Are Alive and Well in 2025: DOJ Issues White-Collar Enforcement Priorities for the New Administration
May 22, 2025 | Advisory | By Eoin Beirne, Nick A. LaPalme, Andrew Tucker Bobbitt
The first 120 days of the Trump administration have been characterized by dramatic changes in the realm of white-collar enforcement. Recently issued memoranda and policy guidance from DOJ contains critical details regarding the new administration’s enforcement priorities.
Health Care Enforcement Trends & 2025 Outlook
January 17, 2025 | Blog | By Karen Lovitch, Samantha Kingsbury, Keshav Ahuja, Eoin Beirne, Grady Campion, Daniel Cody, Tara E. Dwyer, Laurence Freedman, Hope Foster, Jane Haviland, Nicole Henry, Caitie Hill, Robert Kidwell, Nick A. LaPalme, Scott Lashway, Kevin McGinty, Payton Thornton, Matthew Stein, Rachel Yount
Our 2025 edition of EnforceMintz reflects on health care enforcement trends, predicts how health care enforcement may evolve, and offers practical guidance about what these trends and predictions mean for health care providers, payors, and other stakeholders.
EnforceMintz – DOJ Policy Developments in 2024 Seek to Motivate More Voluntary Self-Disclosures
January 16, 2025 | Blog | By Eoin Beirne, Nick A. LaPalme, Karen Lovitch
Over the past two years, the Department of Justice has actively incentivized companies to voluntarily self-disclose potential civil and criminal violations. This article explores the DOJ’s new policies, the benefits of self-disclosure, and the challenges companies face in complying with these initiatives.
EnforceMintz — Novel Criminal Charges and Emerging Civil Trends from Opioid Enforcement in 2024
January 16, 2025 | Blog | By Eoin Beirne, Grady Campion
As opioid-related enforcement efforts continued across the opioid supply chain in 2024, the government pursued criminal charges in two matters that resulted in significant settlements. Additionally, a number of recent cases against pharmacies involve a common theory of liability based on the Controlled Substances Act, which served as the basis for civil liability under the False Claims Act.
News & Press
FCA Bar Eager to Scrutinize 11th Circ. Qui Tam Debate
December 9, 2025
Comments from White Collar Defense and Government Investigations Practice Co-chair Eóin Beirne and Litigation Associate Grady Campion were featured in a Law360 Healthcare Authority article previewing oral arguments in an Eleventh Circuit case challenging the constitutionality of the False Claims Act’s whistleblower provisions. This is a closely watched case that could ultimately head to the Supreme Court.
173 Mintz Attorneys Across 53 Practice Areas Recognized by The Best Lawyers in America 2026
August 28, 2025
173 Mintz attorneys across 53 practice areas have been recognized by Best Lawyers® in the 2026 edition of The Best Lawyers in America©. Five Mintz attorneys received 2026 “Lawyer of the Year” awards, and 61 firm attorneys were included in the 2026 edition of Best Lawyers: Ones to Watch.
Mintz has earned top rankings in the 2025 edition of Legal 500 United States and Canada guides. The firm is recognized in 20 practice categories, and 78 of its attorneys are individually ranked in the guide, with several receiving recognition in more than one category. Additionally, two attorneys are featured in the "Hall of Fame," seven attorneys are named "Leading Lawyers," and five attorneys are recognized as a "Next Generation Lawyers."
Chambers USA has recognized 43 of Mintz’s practices and 88 of its attorneys in its 2025 guide to the country’s leading law firms. Of those featured in the guide, 17 attorneys and seven practice areas were awarded Chambers’ highest ranking, Band 1. The firm expanded its rankings this year with three new practice area listings and 17 attorneys recognized for the first time or in additional categories.
Now 'Back to Stability,' Mass. US Atty Office Set to Ramp Up
November 15, 2024
Insights from Member Eoin Beirne were featured in a recent Law360 article about what the incoming Trump administration’s pick for Massachusetts US attorney could mean for judicial activity from the office and the uncertainties that remain.
Private Equity: How to Stay Out of the DOJ’s Cross-Hairs
October 10, 2024
DealLawyers.com referenced a recent Mintz client alert written by Member Eoin Beirne on pre- and post-acquisition best practices for PE sponsors in light of the DOJ’s heightened enforcement scrutiny on the PE deal landscape in recent years.
Mintz is pleased to announce that 31 attorneys have been named Massachusetts Super Lawyers and 35 attorneys have been named Massachusetts Rising Stars for 2024.
Thirteen Mintz attorneys named to Lawdragon’s 2025 “Leading Litigators in America” list
September 12, 2024
Thirteen Mintz attorneys have been named to Lawdragon’s 2025 “Leading Litigators in America.” The list honors the “best litigators the US has to offer – in antitrust, intellectual property, white collar and investigations, securities and corporate governance litigation, and a vast array of class actions, product liability and other complex civil litigation,” according to the publication.
The Best Lawyers in America 2025 Recognizes 184 Mintz Attorneys across 56 Practice Areas
August 15, 2024
187 Mintz attorneys have been recognized by Best Lawyers® in the 2025 edition of The Best Lawyers in America©. Notably, three Mintz attorneys received 2025 “Lawyer of the Year” awards, and 64 firm attorneys were included in the 2025 edition of Best Lawyers: Ones to Watch.
Mintz has earned top rankings in the 2024 edition of Legal 500 United States guide. The firm is recognized in 14 practice categories, and 72 individual attorneys are also recognized in the guide, some in more than one category. Additionally, two attorneys are featured in the "Hall of Fame," three attorneys are named "Leading Lawyers," four attorneys are recognized as a "Next Generation Lawyers" and one attorney is recognized as a "Rising Star."
Mintz announced today that 42 of its practices and 83 of its attorneys earned recognition in the 2024 edition of Chambers USA, a guide to the country’s leading law firms. Of those included in the guide, 18 attorneys and seven practice areas were awarded Chambers’ highest ranking, Band 1. The firm obtained new listings in three practice areas and 10 of its lawyers were recognized for the first time.
Fifty-Nine Attorneys Recognized as 2023 Massachusetts Super Lawyers and Rising Stars
October 12, 2023
Mintz is pleased to announce that 32 attorneys have been named Massachusetts Super Lawyers and 27 attorneys have been named Massachusetts Rising Stars for 2023.
4 Years On, Unraveling The Lessons Of 'Varsity Blues'
September 27, 2023
Law360 spoke to White Collar Defense and Government Investigations Co-chair Eoin Beirne as part of an in-depth series on the 'Varsity Blues' litigation.
Thirteen Mintz Members Named To Lawdragon 500 Leading Litigators List
September 11, 2023
Mintz is pleased to announce that thirtneen Members have been named to Lawdragon's 500 Leading Litigators in America list, which honors the nation’s most elite courtroom advocates.
Mintz is pleased to announce that 120 firm attorneys have been recognized as leaders by Best Lawyers® in the 2024 edition of The Best Lawyers in America©.
BOSTON – Mintz has earned top rankings in the 2023 edition of Legal 500 United States guide. The firm is recognized in 14 practice categories, and 59 individual attorneys are also recognized in the guide, some in more than one category.
BOSTON –Mintz announced today that 39 of its practices and 81 of its attorneys earned recognition in the 2023 edition of Chambers USA, a guide to the country’s leading law firms.
Fencers' Creds Foiled Harvard Bribe Case, Attys Say
December 22, 2022
Co-Chair of the White Collar Defense and Government Investigations Practice, Eóin Beirne spoke to Law360 regarding the acquittal of Amin Khoury in the "Varsity Blues" trial.
Twenty-Eight Mintz Attorneys Named To Boston Magazine’s Top Lawyers List
November 22, 2022
In its second annual edition, 28 Mintz attorneys were named to Boston Magazine’s Top Lawyers list.
The Government’s Long Game for Investigating COVID-19 Relief Fraud
November 11, 2022
Co-Chair of the White Collar Defense and Government Investigations Practice, Eóin Beirne authored an article published in Pratt's Government Contracting Law Report that explains the federal government's investigation of COVID-19 relief fraud.
Why A 76-Year-Old Top Court Case Could Undo 'Varsity Blues'
November 10, 2022
Co-Chair of the White Collar Defense and Government Investigations Practice, Eóin Beirne, spoke to Law360 about the uncertain conviction status of the "Varsity Blues" case.
New Mass. AG Campbell Inherits 'Bold' Litigation Mandate
November 9, 2022
Co-Chair of Mintz's White Collar Defense and Government Investigations Practice, Eóin Beirne, spoke to Law360 about Andrea Campbell's victory in the Massachusetts Attorney General election.
Mintz is pleased to announce that Eóin Beirne, a Member and Co-chair of the firm’s White Collar Defense and Government Investigations Practice, has been named a 2022 Litigation Trailblazer by the National Law Journal (NLJ).
35 Mintz attorneys have been named Massachusetts Super Lawyers and 25 Mintz attorneys have been named Massachusetts Rising Stars for 2022.
Twelve Mintz Members have been named to the inaugural Lawdragon 500 Leading Litigators in America list, which honors the nation’s most elite courtroom advocates.
Best Lawyers® recognized 108 firm attorneys in the 2023 edition of The Best Lawyers in America©. Notably, two Mintz attorneys – Poonam Patidar and Scott M. Stanton – received 2023 “Lawyer of the Year” awards, and 28 firm attorneys were included in the inaugural edition of Best Lawyers: Ones to Watch.
Mintz, along with co-counsel Black Srebnick PA, secured a full acquittal on all charges brought against client Amin Khoury, who had been charged with conspiracy to commit mail fraud, honest services fraud and federal programs bribery. The trial was the final case tied to the nationwide college admissions scandal known as “Operation Varsity Blues,” and the only case out of 57 to end in an acquittal. Every other defendant was convicted following a guilty plea or trial.
2019 Trends In DOJ Health Care Enforcement
January 13, 2020
2017 Health Care Enforcement Review: Final Thoughts
January 19, 2018
Eighty-Four Mintz Attorneys Named 2016 Massachusetts Super Lawyers and Rising Stars
October 18, 2016
podcasts
Health Law Diagnosed – EnforceMintz – Part 2: DOJ Regulatory and Policy Update
April 25, 2023 | Podcast | By Bridgette Keller, Eoin Beirne, Karen Lovitch, Brian Dunphy
In this episode, Health Care Enforcement Defense specialists Eoin Beirne, Karen Lovitch, and Brian Dunphy discuss key regulatory and policy updates issued by the DOJ and their potential impact on False Claims Act cases, from self-disclosure to privacy regulations.
Health Law Diagnosed – EnforceMintz: Analyzing Health Care False Claims Act Cases
April 18, 2023 | Podcast | By Bridgette Keller, Karen Lovitch, Brian Dunphy, Eoin Beirne
Bridgette Keller speaks with Karen Lovitch, Brian Dunphy, and Eoin Beirne about the Mintz Health Care Enforcement Defense Practice’s recent edition of the EnforceMintz newsletter, Analyzing Health Care False Claims Act Cases, and key health care enforcement trends.
Events & Speaking
Eóin Beirne is a nationally recognized trial lawyer and career defense lawyer who represents companies, executives, public officials, and board committees in their most sensitive government investigations and high-stakes criminal and civil enforcement matters. Co-chair of Mintz’s White Collar Defense & Government Investigations Practice, Eóin is known for achieving quiet, early-stage resolutions with the DOJ, SEC, State Attorneys General, and other enforcement agencies — and for winning when cases must be tried.
Recognition & Awards
Chambers USA: Massachusetts- Litigation: White Collar Crime and Government Investigations (2022-2025)
Lawdragon: "500 Leading Litigators in America" (2022-2026)
Best Lawyers in America: Criminal Defense: White Collar (2021-2025)
National Law Journal: 2022 Litigation Trailblazer
Fellow, Litigation Counsel of America, The Trial Lawyer Honorary Society
Massachusetts Super Lawyers: Criminal Defense: White Collar (2017-2025)
Boston Magazine: Top Lawyers – Criminal Defense-White Collar (2021 - 2022, 2025)
Mondaq: Thought Leadership Award Winner, Autumn 2025
Eóin Beirne is a nationally recognized trial lawyer and career defense lawyer who represents companies, executives, public officials, and board committees in their most sensitive government investigations and high-stakes criminal and civil enforcement matters. Co-chair of Mintz’s White Collar Defense & Government Investigations Practice, Eóin is known for achieving quiet, early-stage resolutions with the DOJ, SEC, State Attorneys General, and other enforcement agencies — and for winning when cases must be tried.
Involvement
- 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

