Donald T. Hess, MD, FACS Surgeon, Adolescent Bariatric Surgery Image Phone 617-355-2458 NPI 1629031406 Print Profile Request an Appointment Locations Boston Boston Children's Hospital 300 Longwood Ave. Boston, Massachusetts 02115 Phone: 617-355-6000 Listen Donald T. Hess, MD, FACS Surgeon, Adolescent Bariatric Surgery Medical Services Programs & Services Adolescent Weight Loss (Bariatric) Surgery Program Surgery Conditions & Treatments Gastroschisis GERD Locations Boston Boston Children's Hospital 300 Longwood Ave. Boston, Massachusetts 02115 Phone: 617-355-6000