Austin Gastro Infusion Center (Bee Cave), TX. (512) 533-1675. 3944 Ranch Road 620 South, Bldg 8, Suite 104, Bee Cave, TX 78738. View Details. Austin Gastro Infusion Center (Shoal Creek), TX. (512) 579-2676. 8015 Shoal Creek Blvd, Suite 109, Austin, TX 78757. View Details. Bailey Square 34th Street - Austin, TX..