Located on the IH-35 access road, our office is easy to access and offers on-site X-ray imaging and physical therapy services. To schedule your appointment, please call (512) 439-1001 or you can schedule one online. Address: 2120 North Mays Street, Suite 100. Round Rock, TX 78664. Office: (512) 439-1004. Fax: (512) 439-1998..