Sandra Van Wyk, MD Psychiatrist Share: Physicians & Surgeons Sandra Van Wyk, MD Psychiatrist Visit Website Request Info 715 Chestnut Street Bastrop, TX 78602 (512) 360-8488 About Map About Sandra Van Wyk, MD is a board certified psychiatrist practicing in Bastrop, Texas. She specializes in the evaluation, diagnosis, and management of psychiatric and psychological problems in adults. What's Nearby? Distance: 5 10 15 20 25 50 mi.