John J. Callahan

John J. Callahan, was a Visiting Fellow at the Brookings Institution during 2001. He previously served as Assistant Secretary of Management and Budget, Chief Financial Officer, and Chief Information Officer of theU.S. Department of Health and Human Services from 1995 until 2001. During that time he also served as Acting Commissioner of the Social Security Administration. In 1997, Dr. Callahan served on the President’s Management Council(PMC). He was appointed vice chairman of the Chief Financial Officers Prior to his work at HHS, Dr.