Lauren Kelleher, RN Staff Nurse, Medical Intensive Care Unit Image Phone 617-355-8117 Print Profile Request an Appointment Locations Boston Boston Children's Hospital 300 Longwood Ave. Boston, Massachusetts 02115 Phone: 617-355-6000 Listen Lauren Kelleher, RN Staff Nurse, Medical Intensive Care Unit Medical Services Programs & Services Medical Intensive Care Unit Locations Boston Boston Children's Hospital 300 Longwood Ave. Boston, Massachusetts 02115 Phone: 617-355-6000