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About MedPAC

Commissioners' biographies

Scott Armstrong, M.B.A., F.A.C.H.E.
Scott Armstrong, M.B.A., F.A.C.H.E., is president and chief executive officer (CEO) of Group Health Cooperative, a consumer-governed health system serving 650,000 enrollees through coordinated care plans for groups and individuals and for Medicare, Medicaid, and State Children’s Health Insurance Program beneficiaries. He has worked at Group Health since 1986, serving in positions ranging from assistant hospital administrator to chief operating officer; he became president and CEO in 2005. Before joining Group Health, Mr. Armstrong was assistant vice president for hospital operations at Miami Valley Hospital in Dayton, OH. Mr. Armstrong is a member of the board of the Alliance of Community Health Plans and board member of America’s Health Insurance Plans and the Seattle Chamber of Commerce. He is also immediate past chair of the Board of the Pacific Science Center and a fellow of the American College of Healthcare Executives. He received his bachelor’s degree from Hamilton College in New York and a master’s degree in business with a concentration in hospital administration from the University of Wisconsin–Madison.

Katherine Baicker, Ph.D.
Katherine Baicker, Ph.D., is professor of health economics in the Department of Health Policy and Management at the Harvard School of Public Health, where her research focuses on health insurance finance and the effect of reforms on the distribution and quality of care. Dr. Baicker has served on the faculty of the Department of Public Policy in the School of Public Affairs at the University of California, Los Angeles; the Economics Department at Dartmouth College; and the Center for the Evaluative Clinical Sciences and the Department of Community and Family Medicine at Dartmouth Medical School. From 2005 to 2007, Professor Baicker served as a Senate-confirmed member of the President’s Council of Economic Advisers. She is a research associate at the National Bureau of Economic Research, is on the Congressional Budget Office’s Panel of Health Advisers, and is an elected member of the Institute of Medicine. She also served as a commissioner of the Robert Wood Johnson Foundation’s Commission to Build a Healthier America and was a member of the Institute of Medicine’s Committee on Health Insurance Status and Its Consequences. She received her B.A. in economics from Yale University and her Ph.D. in economics from Harvard University.

Kathy Buto, M.P.A.
Kathy Buto, MPA is an expert in U.S. and international health policy. She has recently been involved in a range of volunteer professional engagements, including with the National Academy of Social Insurance, the Robert Wood Johnson Foundation’s Healthcare Legacy Forum, and the National Science Foundation’s Study of Women in Policy Making. Her previous positions include Vice President of Global Health Policy at Johnson & Johnson, Senior Health Advisor at the Congressional Budget Office, Deputy Director of the Center for Health Plans and Providers at the Health Care Financing Administration (now Centers for Medicare and Medicaid Services), and Deputy Executive Secretary for Health at the Department of Health and Human Services. Ms. Buto received her Masters in Public Administration from Harvard University.

Jon B. Christianson, Ph.D.
Jon B. Christianson, Ph.D., is the James A. Hamilton Chair in Health Policy and Management in the Division of Health Policy and Management at the School of Public Health at the University of Minnesota. His research has addressed the areas of health finance, payment structures, rural health care, managed care payment, and the quality and design of care systems. Dr. Christianson serves on the Institute of Medicine’s Board on Health Care Services and on the editorial board of the American Journal of Managed Care. He recently served on the Institute of Medicine’s Committee on Geographic Adjustment Factors in Medicare Payment and has chaired AcademyHealth’s annual research meeting. Dr. Christianson received his Ph.D. in economics from the University of Wisconsin.

Alice Coombs, M.D.
Alice Coombs, M.D., is a critical care specialist and an anesthesiologist at Milton Hospital and South Shore Hospital in Weymouth, MA. She is board certified in internal medicine, anesthesiology and critical care medicine. Dr. Coombs is past president of the Massachusetts Medical Society (MMS) and a member of MMS’s Committee on Ethnic Diversity. She chaired the Committee on Workforce Diversity that is part of the American Medical Association’s (AMA’s) Commission to Eliminate Health Care Disparities and on the Governing Council for the AMA Minority Affairs Consortium and the AMA Initiative to Transform Medical Education. She helped to establish the New England Medical Association, a state society of the National Medical Association that represents minority physicians and health professionals. Dr. Coombs has served as a member and vice chair of the Massachusetts Board of Registration in Medicine Patient Care Assessment Committee. In addition, she was a member of the Massachusetts Special Commission on the Health Care Payment System.

Francis “Jay” Crosson, M.D.
Francis “Jay” Crosson, MD is Group Vice President, American Medical Association in Chicago, Illinois, where he oversees the AMA’s work related to physician satisfaction, care delivery, and payment. He previously served in a number of positions with Kaiser Permanente in Oakland, California, including Senior Fellow at the Kaiser Permanente Institute for Health Policy, the Director of Public Policy for The Permanente Medical Group, Inc., and Executive Director of the Permanente Federation, LLC. He currently serves on the National Advisory Council of the Agency for Healthcare Research and Quality, and he served on MedPAC from 2004 to 2010, including as Vice Chair from 2009 to 2010. Dr. Crosson received his medical degree from the Georgetown University School of Medicine.

Willis D Gradison, M.B.A., D.C.S.
Bill Gradison, Jr., M.B.A., D.C.S., was a scholar in residence in the Health Sector Management Program at Duke’s Fuqua School of Business. He was a member of the U.S. Congress (1975–1993) where he served on the House Budget Committee and the Health Subcommittee of the Committee on Ways and Means. Mr. Gradison was a founding board member of the Public Company Accounting Oversight Board and was vice chairman of the U.S. Bipartisan Commission on Comprehensive Health Care (“Pepper Commission”). Prior positions also include assistant to the Secretary of Health, Education, and Welfare; president of the Health Insurance Association of America; and vice chair of the Commonwealth Fund Task Force on Academic Health Centers. Mr. Gradison received his B.A. from Yale University and an M.B.A. and doctorate from Harvard Business School.

Glenn M. Hackbarth, J.D.
Glenn M. Hackbarth, J.D., M.A., chairman of the Commission, lives in Bend, OR. He was chief executive officer and one of the founders of Harvard Vanguard Medical Associates, a multispecialty group practice in Boston that serves as a major teaching affiliate of Harvard Medical School. Mr. Hackbarth previously served as senior vice president of Harvard Community Health Plan and president of its Health Centers Division, as well as Washington counsel of Intermountain Health Care. He has held various positions at the U.S. Department of Health and Human Services, including deputy administrator of the Health Care Financing Administration (now known as CMS). He is also immediate past chairman of the board of the Foundation of the American Board of Internal Medicine. Mr. Hackbarth received his B.A. from Pennsylvania State University and his J.D. and M.A. from Duke University.

William J. Hall, M.D., M.A.C.P.
William J. Hall, M.D., M.A.C.P., is a geriatrician and professor of medicine at the University of Rochester School of Medicine where he directs the Highland Hospital Center for Healthy Aging. He previously served as a member of the board of directors of AARP. His career has focused on systems of health care for older adults. He was instrumental in establishing the Program of All-Inclusive Care for the Elderly and developing many senior prevention and wellness programs. Dr. Hall’s prior service and positions include president of the American College of Physicians and leadership positions in the American Geriatrics Society. He received his bachelor’s degree from the College of the Holy Cross and his medical degree from the University of Michigan Medical School and pursued postdoctoral training at Yale University School of Medicine.

Jack Hoadley, Ph.D.
Jack Hoadley, Ph.D., is research professor at the Health Policy Institute of Georgetown University in Washington, DC. Dr. Hoadley previously served as director of the Division of Health Financing Policy for the Department of Health and Human Services Office of the Assistant Secretary for Planning and Evaluation; as principal policy analyst at MedPAC and its predecessor organization, the Physician Payment Review Commission; and as senior research associate with the National Health Policy Forum. His research expertise includes health financing for Medicare, Medicaid, and the Children’s Health Insurance Program (CHIP); pharmaco-economics and prescription drug benefit programs; and private sector insurance coverage. Dr. Hoadley has published widely on health care financing and pharmaco-economics and has provided testimony to government panels.

Herb Kuhn,
Herb B. Kuhn is current president and chief executive officer of the Missouri Hospital Association (MHA), the trade association serving the state’s 176 hospitals and health systems. Before joining MHA, Mr. Kuhn served in multiple roles at the Centers for Medicare & Medicaid Services, including deputy administrator from 2006 to 2009 and director of the Center for Medicare Management from 2004 to 2006. From 2000 to 2004, Mr. Kuhn served as corporate vice president for the Premier Hospital Alliance, serving 1,600 institutional members. From 1987 through 2000, Mr. Kuhn worked in federal relations with the American Hospital Association. Mr. Kuhn received his bachelor of science in business from Emporia State University.

Mary Naylor, Ph.D., R.N., F.A.A.N.
Mary Naylor, Ph.D., R.N., F.A.A.N., is the Marian S. Ware professor in gerontology and director of the NewCourtland Center for Transitions and Health at the University of Pennsylvania School of Nursing. Since 1989, Dr. Naylor has led an interdisciplinary program of research designed to improve the quality of care, decrease unnecessary hospitalizations, and reduce health care costs for vulnerable community-based elders. Dr. Naylor is also the national program director for the Robert Wood Johnson Foundation program, Interdisciplinary Nursing Quality Research Initiative, which is aimed at generating, disseminating, and translating research to understand how nurses contribute to quality patient care. She was elected to the National Academy of Sciences Institute of Medicine in 2005. She also is a member of the RAND Health Board and the National Quality Forum Board of Directors and the founding chair of the Board of the Long Term Quality Alliance. Dr. Naylor received her M.S.N. and Ph.D. from the University of Pennsylvania and her B.S. in nursing from Villanova University.

David Nerenz, Ph.D.
David Nerenz, Ph.D., is director of the Center for Health Policy and Health Services Research at the Henry Ford Health System in Detroit, MI, as well as director of outcomes research at the Neuroscience Institute and vice chair for Research in the Department of Neurosurgery at Henry Ford Hospital. He has served on the National Committee for Quality Assurance’s Culturally and Linguistically Appropriate Services Workgroup and on the Accountable Care Organization Technical Advisory Committee of the American Medical Group Association. Dr. Nerenz has served in various roles with the Institute of Medicine, including as chair of the Committee on Leading Health Indicators for Healthy People, 2020. He serves on the editorial boards of Population Health Management and Medical Care Research and Review.

Rita Redberg, M.D.
Rita Redberg, M.D., is professor of clinical medicine at the University of California at San Francisco (UCSF) Medical Center, in San Francisco, CA. A cardiologist, Dr. Redberg is also director of Women’s Cardiovascular Services at the UCSF National Center of Excellence in Women’s Health and adjunct associate at Stanford University’s Center for Health Policy/Center for Primary Care and Outcomes Research. She is editor of JAMA Internal Medicine and chairperson of CMS’s Medicare Evidence Development and Coverage Advisory Committee. Dr. Redberg has served in numerous positions on committees of the American Heart Association and the American College of Cardiology and was a Robert Wood Johnson Health Policy Fellow.

Craig Samitt, M.D., M.B.A.
Craig Samitt, M.D., M.B.A., is president and CEO of HealthCare Partners, a subsidiary of DaVita HealthCare Partners. He is also a chair-emeritus of the Group Practice Improvement Network and previously served as an advisory and faculty member of the Centers for Medicare & Medicaid Services’ Accountable Care Organization Accelerated Development Learning Sessions. His prior positions include chief executive officer of Dean Health System, Inc., in Madison, WI; chief operating officer of the Fallon Clinic in Massachusetts; senior vice president at Harvard Pilgrim Health Care; and chairman of Medicine and executive director of the Kenmore Center at Harvard Vanguard Medical Associates.

Warner Thomas, M.B.A.
Warner Thomas, MBA is President and CEO of the Ochsner Health System in New Orleans, Louisiana. He oversees a network of 10 hospitals, 45 health centers and clinics, and 2200 affiliated physicians. The Ochsner system includes the Ochsner Medical Center in New Orleans, the Ochsner Clinic group practice, rurally-based and sub-acute care hospitals, skilled nursing and rehabilitation facilities, and hospice. The Ochsner Medical Center operates one of largest accredited non-university based graduate medical education programs in the United States. It is also one of the largest Medicare risk contractors in the region and offers an Accountable Care Organization for Medicare. Mr. Thomas’s prior positions include Chief Operating Officer of the Ochsner Clinic, Vice President of Managed Care and Network Development at the Southern New Hampshire Medical Center, and Senior Auditor and consultant at Ernst & Young. He received his Master of Business Administration from Boston University Graduate School of Management.

Cori Uccello, F.S.A., M.A.A.A., M.P.P.
Cori E. Uccello, F.S.A., M.A.A.A., M.P.P., is senior health fellow of the American Academy of Actuaries, serving as the actuarial profession’s chief public policy liaison on health issues. Ms. Uccello focuses on issues related to health insurance financing, coverage and market reforms, and risk-sharing mechanisms. She recently served as a member of the Technical Review Panel on the Medicare Trustees’ report. Before joining the academy in 2001, she was a senior research associate at the Urban Institute where she focused on health insurance and retirement policy issues. She previously held the position of actuarial fellow at the John Hancock Life Insurance Company. Ms. Uccello is a fellow of the Society of Actuaries and a member of the American Academy of Actuaries. She received an undergraduate degree in math and biology from Boston College and a master’s degree in public policy from Georgetown University.

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