Miller received his PhD in 2003 in political science and health services organization and policy from the University of Michigan. His research focuses on understanding the determinants and effects of federal and state policies on vulnerable populations. His specializations include aging and long-term care, telemedicine and e-health, intergovernmental relations, and program implementation and evaluation. Miller is a member of the editorial boards of The Gerontologist; the Journal of Aging and Social Policy; the Journal of Health Politics, Policy and Law; and World Medical and Health Policy. He organized the April 2012 special issue of the Journal of Aging and Social Policy titled “Critical Essays on Health Care Reform: The Affordable Care Act, Long-Term Care, and Elders.”