Kristen Koch, PA-C Surgical Physician Assistant, Department of Otolaryngology and Communication Enhancement Image NPI 1205074721 Print Profile Request an Appointment Locations Boston Boston Children's Hospital 300 Longwood Ave. Boston, Massachusetts 02115 Phone: 617-355-6000 Listen Kristen Koch, PA-C Surgical Physician Assistant, Department of Otolaryngology and Communication Enhancement Medical Services Programs & Services Otolaryngology and Communication Enhancement Locations Boston Boston Children's Hospital 300 Longwood Ave. Boston, Massachusetts 02115 Phone: 617-355-6000