Gary A. Rosenberg

        Counsel

        For more than four 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

        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

        • Listed in The Best Lawyers in America® under Health Care Law in Boston, Massachusetts 
        • 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
        • 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.

        Firm Highlights

        Alerts and Newsletters

        Can AI Pass the Doctor Test? FDA Considers Physician-Inspired Evaluation of GenAI Devices and Other Regulatory Measures

        AI is entering healthcare with indomitable will. It promises to increase efficiency, reduce administrative burden (which healthcare providers so...
        Press Releases

        Verrill Attorney Annabel Rodriguez Named Top Women of Law by Massachusetts Lawyers Weekly

        BOSTON, Massachusetts – Verrill attorney Annabel Rodriguez has been recognized as a Top Women of Law by Massachusetts Lawyers Weekly, and will be...
        Blog

        What Employee Benefits Lawyers Do (and How to Make the Best Use of Us)

        What do employee benefits lawyers do all day and how can clients make the best use of them? This post offers an overview of the kinds of things...
        Media Mentions

        Bloomberg Law Quotes Robert Keach on Expanded Access to Small Business Reorganization

        Verrill attorney Bob Keach was recently featured in Bloomberg Law, discussing legislation that would raise debt limits for bankruptcy relief and...
        Blog

        Phil Bartlett to Step Down as Chair of the Maine Public Utilities Commission

        On September 15, 2026, Governor Janet Mills announced that Phil Bartlett will step down as Chair of the Maine Public Utilities Commission (PUC)...
        Published Works

        Jay McCormack and Michael Fee Co-Author AHLA Article on Skin Substitute Enforcement Trends

        Verrill Partners Jay McCormack and Michael Fee co-authored an article for the American Health Law Association's Fraud and Abuse Practice Group...
        Press Releases

        Verrill Welcomes Health Care & Life Sciences Attorney Elpida Velmahos

        BOSTON, Massachusetts – Verrill is pleased to announce that Elpida Velmahos has joined the firm’s Health Care & Life Sciences Group as an...
        Press Releases

        Verrill Welcomes Litigation & Trial Attorney Emma Pooler

        PORTLAND, Maine – Verrill is pleased to announce that Emma Pooler has joined the firm’s Litigation & Trial Group as an Associate, resident in...
        Published Works

        Four Verrill Attorneys Co-Author Massachusetts Trends and Developments Chapter for Chambers and Partners Child Relocation 2026 Guide

        Verrill attorneys Mary H. Schmidt, Rachel A. Deering, Hannah R. Zukoff, and Mariah G. Tappan co-authored the “Trends and Developments” chapter...
        Blog

        A New Protected Class in Maine: Holders of Final Protection Orders

        In the lead-up to Domestic Violence Awareness Month in October, employers may be taking a closer look at how their policies and practices respond to...
        Alerts and Newsletters

        Verrill Secures SJC Victory for Boston Legacy FC in White Stadium Litigation

        Verrill has secured a significant appellate victory for Boston Legacy FC in the litigation challenging the redevelopment of White Stadium in...
        Blog

        Hurry Up and Wait

        This is the third in a series of Verrill blog posts on Maine’s packaging extended producer responsibility (“EPR”) law[1]. In July we reported...