Sara Kalbko, MS, RN, BSN Staff Nurse, Cardiac Intensive Care Unit Image Print Profile Request an Appointment Locations Boston Boston Children's Hospital 300 Longwood Ave. Boston, Massachusetts 02115 Phone: 617-355-6000 Listen Sara Kalbko, MS, RN, BSN Staff Nurse, Cardiac Intensive Care Unit Medical Services Programs & Services Cardiac Intensive Care Heart Center Cardiology Languages English Locations Boston Boston Children's Hospital 300 Longwood Ave. Boston, Massachusetts 02115 Phone: 617-355-6000