Hours of Operation: Monday - Friday, 7 a.m. - 4:30 p.m.

Location: 148 Chestnut Street, 148 Chestnut Street, OCC 3rd floor

To make an appointment at the Gastroenterology Department, call 781-453-7861. To make an appointment with Dr. Matthew Sullivan, call 781-453-3688.

Department Telephone: 781-453-7857

Fax: 781-453-7860