Klaus Peter Rentrop, MD Agreed to Be Excluded for Five Years for Allegedly Submitting False Claims and Paying Improper Remuneration

On September 15, 2023, in connection with the resolution of his False Claims Act liability, Dr. Klaus Peter Rentrop (Rentrop), New York, New York, agreed to be excluded under 42 U.S.C. 1320a-7(b)(7) for five years. Rentrop owned and controlled Gramercy Cardiac. The investigation revealed and OIG alleged that Rentrop: (1) entered into office space rental agreements, often in excess of fair market value, with primary care and other physicians (or their medical practices) in order to induce these physicians to refer patients to Gramercy Cardiac-contracted cardiologists who used the rented office space; (2) these cardiologists regularly ordered diagnostic tests and procedures that were performed at Gramercy Cardiac; and (3) Rentrop paid many of these cardiologists a flat fee for each diagnostic test or procedure the referred patients underwent at Gramercy Cardiac, with larger fees for tests or procedures for which Gramercy Cardiac received larger reimbursements. Senior Counsel Nancy Brown represented OIG.

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