Demetrios L. Kouzoukas is the Principal Deputy Administrator of CMS and Director of the Center for Medicare. He supports the Administrator, leads the staff that develops policies for and manages the operations of the fee-for-service portion of the Medicare program, and has responsibility for Medicare Advantage and Medicare Prescription Drug Programs.

From 2003 to 2009, Demetrios was a senior official at the U.S. Department of Health and Human Services (HHS), serving as Principal Associate Deputy Secretary and Deputy General Counsel. While at HHS, he was responsible for regulatory policy across the Department and at various times collaborated with or advised every division of HHS. Demetrios has also worked with a broad spectrum of health care stakeholders in private practice as a lawyer providing strategic advice on legal, regulatory, and public policy matters. In addition, Demetrios has been a senior executive at the nation’s largest Medicare health plan business, where he led a team of legal and regulatory affairs professionals as General Counsel.  Until recently, Demetrios served as a Public Member of the Administrative Conference of the United States, an appointment made on the basis of expertise in administrative law, government procedure, and public administration.

Demetrios graduated with a degree in political science and public policy from George Washington University before going on to receive his J.D. from the University of Illinois. He is originally from Chicago and enjoys spending time with his wife and two daughters.