Benjamin Z. Stanger, MD, PhD Benjamin Z. Stanger, MD, PhD, is a researcher in the Pediatric Liver Center at Children's Hospital of Philadelphia. Appointments and Referrals: 1-800-TRY-CHOP (1-800-879-2467) Background Visit Penn Medicine website for complete bio information. Education and Training Medical SchoolMD - Harvard Medical School, Boston, MA Graduate DegreePhD in Genetics - Harvard Medical School, Boston, MA Titles and Academic Titles ResearcherAssociate Professor Of Medicine, Perelman School of Medicine at the University of Pennsylvania Departments and Services Fred and Suzanne Biesecker Pediatric Liver CenterBiliary Atresia Clinical Care Program