Mary Jane Koren, M.D., M.P.H., assistant vice president, joined The Commonwealth Fund in 2002 and leads the Picker/Commonwealth Program on Quality of Care for Frail Elders. She is also chair of the Advancing Excellence in America's Nursing Homes campaign Steering Committee for 2008. Dr. Koren, an internist and geriatrician, began her academic career at Montefiore Medical Center, in the Bronx, where she helped to establish one of the early geriatric fellowship programs in New York. Dr. Koren also practiced in both nursing home and home care settings and was the associate medical director of the Montefiore Home Health Care Agency. She later joined the faculty of Mt. Sinai's Department of Geriatrics and served as associate chief of staff for extended care at the Bronx V.A. Medical Center. Leaving academic practice, she was appointed as director of the New York State Department of Health's Bureau of Long Term Care Services, where she ran the nursing home survey and certification programs, led the state's implementation of OBRA'87 (the Nursing Home Reform Law) and participated in many of the state's long term care policy initiatives. Following that, she served as principal clinical coordinator for the New Jersey Peer Review Organization, which directed the Federal Health Care Quality Improvement Program. In 1993, she joined the Fan Fox and Leslie R. Samuels Foundation, first as an advisor and later as vice president of a grantmaking program in the field of health services and aging. Throughout her career she has been active as a health services researcher in the area of long-term care quality.