Contact Us If you're having a stroke, seconds count. The sooner you can get treatment, the better your chances are for preventing lasting damage. If you suspect you’re having a stroke, call 911 and get to a hospital immediately! If you've already had a stroke and you're interested in ongoing clinical management, you can reach us as follows: The Stroke Center at Unity Health System and TIA clinic 2655 Ridgeway Ave Rochester NY 14626 Phone: (585) 723-7972 (Providers choose option #3) Fax: (585) 368-3119 Office hours: Monday through Friday: 8 a.m. to 4:30 p.m. Parking is free.