Rosie Dawn Griffin

Washington, DC Office
T: 202.204.4523
F: 202.204.3501
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Rosie Dawn Griffin is an associate in Constantine Cannon’s Washington, DC office.  She represents whistleblowers under the federal False Claims Act, equivalent state acts, and the whistleblower programs of the Internal Revenue Service, Securities and Exchange Commission, and Commodity Futures Trading Commission.

Rosie focuses primarily on addressing fraud in the healthcare industry. She is part of the legal team pursuing a qui tam case against UnitedHealth Group alleging the nation’s largest Medicare Advantage Organization submitted false claims for payment to the Medicare Program by improperly inflating its members’ risk scores (also known as risk adjustment fraud).

Prior to joining Constantine Cannon, Rosie held a two-year DOJ Honors Program clerkship with the Executive Office for Immigration Review.

Rosie earned her J.D., with honors, from the George Washington University Law School in 2013. At GW Law, she litigated on behalf of victims of domestic violence in two clinics, received multiple commendations for her international human rights pro bono work, and was a member of the George Washington Law Review.


J.D., The George Washington University Law School, cum laude, 2013

B.A., University of Maine, International Affairs and Political Science, summa cum laude, 2006

Practice Groups


  • Maine
  • District of Columbia
  • U.S. District Court for the District of Columbia




Congress’ Band-Aid—It’s Up to Whistleblowers to Combat EB-5 Fraud Epoch Times (with Sarah Poppy Alexander, (October 31, 2016)
Click here to read the article.

We Need Whistleblowers To Save Indian Workers From H-1B Visa Fraud The Huffington Post (with Sarah Poppy Alexander, (October 13, 2016)
Click here to read the article.

The London office of Constantine Cannon is a separate and independent limited liability partnership registered in England and Wales (with registered number OC376384) with a registered office at 1 Paternoster Square, London EC4M 7DX. Constantine Cannon LLP in London is authorised and regulated by the Solicitors Regulation Authority. The word "partner" denotes a member of Constantine Cannon LLP, or an employee or consultant with equivalent standing and qualifications. The professional rules applicable to the firm are available at the SRA website at