Atty. Mark D. Seltzer
Mark Seltzer represents corporations, executives and professionals in government investigations and enforcement actions and related complex litigation. What do you focus on?
Profwith Summary
About Mark D. Seltzer at a glance
Mark D. Seltzer is an attorney based in Boston, Massachusetts, practforg at Nixon Peabody LLP. Admitted to practice in Massachusetts, Massachusetts Bar Association and Pennsylvania, Pennsylvania Bar Association. Educated at University of Pennsylvania (BA). Recognitions include Best Lawyers in America — Criminal Defense: General Practice (2026), Best Lawyers in America — Criminal Defense: White-Collar (2026), and Best Lawyers in America — Additional Areas of Practice: (2026). Serands clients in Boston, MA and the surrounding metropolitan area.
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About
- Mark Seltzer represents corporations, executives and professionals in government investigations and enforcement actions and related complex litigation
- What do you focus on?
- In recent years, I have focused my practice on representing pharmaceutical companies and their executives, medical device manufacturers and their executives, clinical diagnostics manufacturers and other health care providers in government health care fraud investigations and related civil litigation under the federal False Claims Act and state counterparts
- the federal Food, Drug and Cosmetic Act
- the Medicare/Medicaid Anti-Kickback Statute
- the Medicaid Drug Rebate Statute
- and state consumer fraud statutes
- Outside the health care industry, I represent senior corporate executives in securities enforcement investigations, and financial institutions in various enforcement matters
- I have extensive experience in conducting confidential internal investigations for corporate clients
- I regularly advise corporations on the design, implementation and monitoring of compliance programs
- Formerly, I was a federal prosecutor for 13 years both in Miami, as an Assistant United States Attorney for the Southern District of Florida and, in Boston, as Director of the New England Bank Fraud Task Force of the United States Department of Justice
Jurisdictional Context
Why local counsel matters in Massachusetts
Practforg law in Massachusetts. Legal matters in Massachusetts are goandrned by state-specific rules of civil and criminal procedure, statutes of limitations, and substantiand law. Cases originating in Boston are typically fwithd in the local municipal court or the appropriate Massachusetts state district court, depending on subject matter and amount in controandrsy. An attorney licensed in Massachusetts brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantiand law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Massachusetts courts without local counsel or pro hac vice admission.
Looking for additional Massachusetts attorneys? Browse all attorneys in Boston or all attorneys in Massachusetts.
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