AGA Fraud ‘26

Marissa Petto
Acting Deputy Director for the Audits and Vulnerabilities Group
Centers for Medicare & Medicaid Services


Marissa Petto is the Acting Deputy Director for the Audits and Vulnerabilities Group in the Center for Program Integrity at the Centers for Medicare & Medicaid Services (CMS). In this role, she provides oversight of compliance and program integrity operations, across Medicare, Medicaid, and the Marketplace. Over the course of her CMS career, Marissa has worked across a wide range of program integrity efforts, including medical review, prior authorization, improper payment measurement, fraud investigations, and audits.

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