Courtney Gentry, RN, BSN Registered Nurse, Department of Cardiology Image Print Profile Request an Appointment Locations Boston Boston Children's Hospital 300 Longwood Ave. Boston, Massachusetts 02115 Listen Courtney Gentry, RN, BSN Registered Nurse, Department of Cardiology Medical Services Programs & Services Electrophysiology Cardiology Languages English Locations Boston Boston Children's Hospital 300 Longwood Ave. Boston, Massachusetts 02115