Rosie Dawn Griffin serves as Counsel in the firm’s Litigation and Government Investigations, Health Care, Federal Grants, and Government Contracts practice groups.

Ms. Griffin litigates in federal district and appellate courts nationwide on behalf of clients navigating matters related to federal grants, government contracts, government investigations, and health care reimbursement. Her clients include a diverse group of federal grant recipients and government contractors, including Federally Qualified Health Centers, Head Start programs, and institutes of higher education.

Ms. Griffin has significant experience in matters relating to government-sponsored healthcare programs including Medicare and Medicaid, with a particular focus on managed care. Her broad experience representing clients facing investigations and litigation under the False Claims Act and similar statutes informs her ability to advise and counsel clients on compliance with regulatory and program requirements and assist clients to assess and mitigate fraud and compliance risk, including through internal investigations. Ms. Griffin brings deep knowledge to this work, and a unique perspective, having previously represented whistleblowers in False Claims Act cases. Her years of False Claims Act experience allow her to guide clients through all phases of a government investigation, from responding to civil investigative demands and subpoenas through litigation.

Ms. Griffin began her legal career at the Department of Justice (DOJ), Executive Office for Immigration Review, where she served a two-year DOJ Honors Program clerkship in Immigration Court. In law school, Ms. Griffin litigated on behalf of victims of domestic violence in two clinics and received multiple commendations for her international human rights pro bono work.

Representative Matters

  • Succeed on appeal to the Ninth Circuit in case against state Medicaid agency for violation of Federally Qualified Health Center’s Medicaid payment rights.
  • Succeeded on appeal in matters in the Second and Ninth Circuits involving government’s erroneous denial of Federal Tort Claims Act immunity for FQHCs and their employees.
  • Obtained Federal Tort Claims Act immunity on behalf of FQHC and FQHC provider in federal district court.
  • Sued the U.S. Department of Health and Human Services to obtain the promulgation of a long overdue 340B administrative dispute resolution rule.
  • Obtained preliminary injunctive relief on behalf of federal grantee facing erroneous repayment obligation.
  • Overturned and reduced significant cost disallowances in matters before the HHS Departmental Appeals Board.
  • Defended Federally Qualified Health Centers against Department of Justice False Claims Act investigations.
  • Conducted internal investigations and guided federal grantees through the process of voluntary disclosure.
  • Submitted amicus brief to the United States Supreme Court on behalf the American Public Health Association, The Guttmacher Institute, The Center for U.S. Policy and 547 deans, department chairs, leading academic scholars and public health professionals in reproductive rights matter.
  • Represented a whistleblower under the qui tam provisions of the federal False Claims Act in a government-intervened litigation alleging the nation’s largest Medicare Advantage Organization knowingly avoided an obligation to return over a billion dollars in false claims for payment to the Medicare Program.


  • Selected to the Washington, DC, Super Lawyers Rising Stars list – Health Care (2023)

Published Works

Rosie Dawn Griffin, Counsel


  • J.D., The George Washington University Law School, cum laude, Law Review (2013)
  • B.A., University of Maine, summa cum laude, Phi Beta Kappa (2006)

Bar/Court Admissions

  • District of Columbia
  • Maine
  • Supreme Court of the United States
  • U.S. Court of Appeals for the Second Circuit
  • U.S. Court of Appeals for the Fourth Circuit
  • U.S. Court of Appeals for the Ninth Circuit
  • U.S. Court of Federal Claims
  • U.S. District Court for the District of Columbia
  • U.S. District Court for the Eastern District of Michigan
  • U.S. District Court for the Western District of New York


  • French
  • Portuguese
  • Spanish