Loretta Bonanni-Metkus, MD, FAAP Loretta Bonanni-Metkus, MD, FAAP, is a Pediatrician at CHOP Primary Care, North Hills in West Chester, PA. Locations: Primary Care, North Hills Appointments and Referrals: 1-800-TRY-CHOP (1-800-879-2467) Education and Training Medical SchoolThomas Jefferson Medical College, Philadelphia, Pa. InternshipThomas Jefferson University Hospital, Philadelphia, Pa. ResidencySt. Christopher's Hospital for Children, Philadelphia, Pa. FellowshipHahnemann Hospital, Philadelphia, Pa. Board CertificationAmerican Board of Pediatrics Titles and Academic Titles Attending Physician