Currently, Central Ohio Primary Care's 120 physicians cover 18 specialty areas of medicine. Central Ohio Primary Care Office Locations. Showing 1-5 of 21 Locations. Riverside Infection Consultants. 3555 Olentangy River Rd # 3020 ... Tri County Family Physicians. 11925 Lithopolis Rd NW Canal Winchester, OH 43110 (614) 837-6363. Monday : 8:00 AM ....