Thomas M. Gallagher

Thomas M. Gallagher

Philadelphia, PA recognized lawyers icon Recognized in Best Lawyers since 2015
Goodwin

155 Best Lawyers awards

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Awarded Practice Areas

Qui Tam Law Criminal Defense: White-Collar
*Named the "Lawyer of the Year" in this practice area in the 2026 edition in Philadelphia.

Biography

Tom represents clients in white collar criminal matters, corporate investigations and complex civil litigation.

Tom’s national practice is focused on representing entities facing government investigations. particularly focused in the health care industry. He also represents businesses and individuals facing investigation by federal and state law enforcement authorities, government regulatory agencies and congressional committees. For example, he has represented major pharmaceutical companies, medical device manufacturers, payors, providers, defense contractors and other entities and individuals in parallel federal criminal, civil and state attorney general investigations, as well as Foreign Corrupt Practices Act and antitrust investigations.

Tom is a former prosecutor in the criminal division of the U.S. Attorney’s Office in the Eastern District of Pennsylvania. He has led the investigation and prosecution of numerous complex, multi-defendant white collar criminal matters in a number of industries, including health care, insurance, financial services and defense.

Before he joined the U.S. Attorney’s Office in 1995, Tom served for six years as a trial lawyer and staff judge advocate for the U.S. Navy and, before that, served as a line officer on a destroyer. He retired as a captain in the U.S. Naval Reserve, Judge Advocate General’s Corps.

Tom is the Vice Chair of Troutman Pepper and serves on the firm’s Management Team and Policy Committee.

Goodwin

155 Best Lawyers awards

Goodwin logo

Overview

  • Villanova University, J.D., graduated 1989
  • Villanova University, graduated 1989
  • Villanova University, J.D., graduated 1989
  • Villanova University, graduated 1989

Client Testimonials

Awards & Focus

Lawyer of the Year Badge - 2026 - Qui Tam Law Lawyer of the Year Badge - 2023 - Criminal Defense: White-Collar
Named "Lawyer of the Year" by Best Lawyers® for:
  • Qui Tam Law, Philadelphia (2026)
  • Criminal Defense: White-Collar, Philadelphia (2023)
Recognized in The Best Lawyers in America® 2026 for work in:
  • Criminal Defense: White-Collar
  • Qui Tam Law
Additional Areas of Practice:
  • Government Contracts
  • Product Liability Litigation
  • Product Liability Litigation - Defendants

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