Gary A. Rosenberg

For more than three decades, Gary has assisted his clients in maneuvering successfully around the traps and pitfalls of the highly regulated world of health care.

Gary represents clients on a wide variety of corporate and regulatory issues, including primarily Medicare, Medicaid, and private insurer payments issues and appeals; 340B discount drug pricing; compliance and fraud and abuse issues and investigations; and licensing/certification matters. He provides advice and services to a variety of provider entities including teaching, community, and non-acute hospitals; physicians; and other non-institutional practitioners. He also acts as general counsel to a number of physician practices.

Gary has an active reimbursement practice covering administrative appeals from both claims and cost report disputes and mediation. He has had success in numerous appeals to administrative law judges (ALJs) and Medicare Administrative Contractors (MACs), as well as in federal and state courts. Gary has handled numerous disputes with governmental and commercial payers, especially successfully reducing or eliminating recoupment demands.

In addition to reading and traveling in his spare time, Gary enjoys cycling, having ridden in the Pan-Mass Challenge five times.

Services/Industries

• Health Care & Life Sciences
• Health Care
• Strategic Counseling & Transactions
• Payments & Reimbursement
• Asset Forfeiture, Restitution, & Financial Penalty Defense

Education

• Boston College Law School (J.D., cum laude)
• Stony Brook University (B.A.)
  • National Economics Honor Society

Bar Admissions

• Massachusetts

Court and Other Admissions

• U.S. District Court for the District of Massachusetts
• U.S. Court of Appeals for the First Circuit

Memberships

• Member, Boston Bar Association
• Member, Healthcare Financial Management Association
• Member, American Health Lawyers Association

Honors

• Healthcare Financial Management Association Massachusetts-Rhode Island Chapter Medal of Honor Award Recipient (2016)
• Muncie Gold Merit Award for Outstanding Service, Massachusetts Chapter of HFMA (2011)
• AV^® Rated by Martindale-Hubbell
• Listed in The Best Lawyers in America^® under Health Care Law in Boston, Massachusetts (2026)
• Selected by peers for inclusion in New England Super Lawyers under Health Care

Learn more about the third-party ratings, rankings, and selection processes used for inclusion.