Since 1973, Dr Fost has been at the University of Wisconsin where he is Professor of Pediatrics, Director of the Program in Medical Ethics, Director of the Child Protection Team, and a general pediatrician. He has chaired the Hospital Ethics Committee and the UW Health Sciences Human Subjects Committee for 26 years.
Within the AAP, Dr Fost chaired the national Committee on Bioethics (1986-1990), served on the Section on Bioethics Executive Committee (1995-1999) and was a founding member of the Task Force on Pediatric AIDS (1992-1993). He has served on numerous federal committees involving genetic screening, research ethics and regulation, and President Clinton's Health Care Task Force. He was elected to Princeton University's Board of Trustees (1994-1998).