Ryan represents corporations and individuals in criminal and civil enforcement matters conducted by U.S. attorney’s offices, the Fraud Section of the U.S. Department of Justice, and U.S. Securities and Exchange Commission.

With extensive experience in white collar investigations, litigation, trials, and appeals, Ryan assists clients facing health care fraud, Foreign Corrupt Practices Act (FCPA) violations, federal grant fraud, and financial fraud investigations and litigation. He also provides guidance on compliance matters.

Ryan’s clients span a wide variety of industries, including health care, life sciences, finance, education, pharmaceuticals, energy, technology, and gaming.

• Represented one of the largest pharmaceutical and medical device distributors in the U.S. in a DOJ investigation and related whistleblower cases concerning alleged violations of the Anti-Kickback Statute and False Claims Act and resolved the matter through a settlement.
• Represented an orphan drug company in a DOJ investigation concerning alleged violations of the Anti-Kickback Statute, False Claims Act, and Food, Drug, and Cosmetic Act.
• Represented the former president of a large multinational corporation in a criminal case that involved alleged FCPA violations.
• Represented a large multinational company in a joint DOJ/SEC investigation concerning alleged FCPA violations.
• Represented clients in investigations and enforcement actions regarding alleged state and federal labor law violations, issues concerning hiring practices, and potential identity theft.
• Represented the CEO of a health care company in an accounting fraud investigation conducted by the SEC.
• Represented an individual and two universities concerning the “Operation Varsity Blues” college admissions fraud investigation and case.
• Represented a university professor in an investigation concerning DOJ’s China Initiative.
• Represented an individual in a criminal case concerning construction work performed on Boston’s “Big Dig” project.
• Led several independent investigations into sexual misconduct at elite private schools.

• Chambers USA: Litigation: White-Collar Crime & Government Investigations, Massachusetts (2024-2025)
• The Best Lawyers in America®: Criminal Defense: White-Collar (2025-2026) and Privacy and Data Security Law (2024-2026)