Mary Lyn Stein, MD Associate in Cardiac Anesthesia, Department of Anesthesiology, Critical Care and Pain Medicine Assistant Professor of Anaesthesia, Harvard Medical School Image Phone 617-355-6225 Email Email Me NPI 1699067025 Print Profile Request an Appointment Locations Boston Boston Children's Hospital 300 Longwood Ave. Boston, Massachusetts 02115 Listen Mary Lyn Stein, MD Associate in Cardiac Anesthesia, Department of Anesthesiology, Critical Care and Pain Medicine Assistant Professor of Anaesthesia, Harvard Medical School Medical Services Programs & Services Cardiac Anesthesia Services Anesthesia Languages English Certifications American Board of Anesthesiology (General) American Board of Anesthesiology (Pediatric Anesthesiology) American Board of Pediatrics (General) Locations Boston Boston Children's Hospital 300 Longwood Ave. Boston, Massachusetts 02115