You may also request refills on the patient portal. Billing. We require payment of your co-payment and past-due account balances at the time of service. We accept cash, checks, debit and all major credit cards. ... Austin Orthopedics and Sports Medicine - South Austin 5033 W. Hwy. 290, Bldg. E, Suite 100-2 Austin, TX 78735. Phone: (512) 339 ....