Gahanna 722 Buckles Court North Gahanna, Ohio 43230 Ohio Gastro Office Suite 100 Doctor Appointments, Office Visits, & Hemorrhoid Banding Central Ohio Endo. Center Suite 110 Opening soon! Procedures (eg. colonoscopy, endoscopy) Main: 614-754-5500 Billing: 614-457-4220 Medical Records: 614-754-5455 Open PDF Directions