South Florida Medical Providers Agree to Pay $810,301 to Resolve Allegations of Fraudulently Billing Medicare

MIAMI - Vascular and Interventional Specialists, LLC (VIS); Vascular and Spine Institute, Inc. (VSI); Oscar Sosa, M.D.; and Osmany DeAngelo, D.O. have agreed to pay $810,301 to resolve allegations that they violated the False Claims Act by submitting claims for medically unnecessary percutaneous transluminal angioplasties (PTA)—a procedure that is performed to increase blood flow through a diseased or abnormally narrowed vessel.

The United States alleged that from 2015 to 2024, VIS, VSI, Sosa, and DeAngelo performed hundreds of PTAs without conducting any diagnostic inquiry or making a clinical diagnosis to support the medical necessity of the PTAs they performed. VIS, VSI, Sosa, and DeAngelo subsequently submitted claims to federal healthcare programs, including Medicare, for the PTAs that were not reasonable or medically necessary.

VIS is an endovascular surgery center in Miami, which provides vascular and interventional radiology services with a specialty in the diagnosis and treatment of vascular disease as well as the management and maintenance of dialysis access. VSI submitted bills to federal healthcare programs for services provided by VIS and its individual practitioners. DeAngelo and Sosa are individual practitioners who provided medical services, including PTAs, on behalf of VIS.

The allegations arose from a lawsuit filed by a whistleblower, Emilio Lopez, M.D., under the qui tam provisions of the False Claims Act. Under the False Claims Act, private citizens can bring suit on behalf of the government for false claims and share in any recovery. Dr. Lopez will receive approximately $186,369 from the recovery announced today.

U.S. Attorney Hayden P. O’Byrne for the Southern District of Florida and acting Special Agent in Charge Jesus Barranco of the U.S. Department of Health and Human Services, Office of Inspector General (HHS-OIG), Miami Regional Office announced the settlement.

HHS-OIG investigated the matter.

Assistant U.S. Attorney Matthew J. Feeley handled the litigation.

Note: See the settlement agreement here.

Related court documents and information may be found on the website of the District Court for the Southern District of Florida at www.flsd.uscourts.gov or at http://pacer.flsd.uscourts.gov, under case number 20-cv-22046.

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