Jennifer Lawlor, RN Registered Nurse, Division of Gastroenterology, Hepatology and Nutrition Image Print Profile Request an Appointment Locations Boston Boston Children's Hospital 300 Longwood Ave. Boston, Massachusetts 02115 Listen Jennifer Lawlor, RN Registered Nurse, Division of Gastroenterology, Hepatology and Nutrition Medical Services Programs & Services Gastroenterology, Hepatology and Nutrition Locations Boston Boston Children's Hospital 300 Longwood Ave. Boston, Massachusetts 02115