Home: Washington, D.C.

Experience: While at the New York State Health Department in the 1990s, Kaelin helped redesign the state's Medicaid program and established the state's Medicaid managed care program. After leaving New York, Kaelin was appointed chief executive at the University of Maryland's Center for Health Program Development and Management. He is currently the senior vice president for health reform implementation at UnitedHealthcare Community and State, a subsidiary of UnitedHealth Group. The company's health plans serve more than 3 million Medicaid, Children's Health Insurance Program (CHIP) and Medicare beneficiaries in 25 states.