Dublin 6670 Perimeter Drive Dublin, Ohio 43016 Ohio Gastro Office Suite 200-A Doctor Appointments, Office Visits, & Hemorrhoid Banding Central Ohio Endo. Center Suite 200-B Procedures (eg. colonoscopy, endoscopy) Main: 614-754-5500 Billing: 614-457-4220 Medical Records: 614-754-5455 Open PDF Directions