Margaret Evans-Langhorst, NP Nurse Practitioner, Department of Cardiology Image Phone 857-218-4974 Fax 617-730-4636 Print Profile Request an Appointment Locations Boston Boston Children's Hospital 300 Longwood Ave. Boston, Massachusetts 02115 Listen Margaret Evans-Langhorst, NP Nurse Practitioner, Department of Cardiology Medical Services Programs & Services Outpatient Cardiology Heart Center Cardiology Languages English Education Undergraduate School Seattle University 2008 Seattle WA Graduate School Boston College 2014 Chestnut Hill MA Certifications Pediatric Nursing Certification Board (PNCB) Locations Boston Boston Children's Hospital 300 Longwood Ave. Boston, Massachusetts 02115