Stefanie Hartman, RN, MS, CPNP Nurse Practitioner, Brain Injury Center/Trauma Center Image Phone 617-355-5400 Email Email Me Print Profile Request an Appointment Locations Boston Boston Children's Hospital 300 Longwood Ave. Boston, Massachusetts 02115 Listen Stefanie Hartman, RN, MS, CPNP Nurse Practitioner, Brain Injury Center/Trauma Center Medical Services Programs & Services Brain Injury Center Trauma Center Surgery Locations Boston Boston Children's Hospital 300 Longwood Ave. Boston, Massachusetts 02115