CEDAR PARK - PEDIATRIC SPECIALTY CENTER - 1301 Medical Parkway, Suite 300 - Cedar Park, TX 78613 - Phone: (512) 494-4000 - Fax: (512) 494-4045. SOUTH AUSTIN OFFICE - 5301 Davis Lane, Suite 200A - Austin, TX 78749 - Phone: (512) 494-4000 - Fax: (512) 494-4090.