5 /5 Carolyn Huddleston: Dr Wallis and staff are the best , He has been my doctor for 28 years. I now live in Georgetown, Tx and drive to San Marcos for appointments. I appreciate his experience in the medical field, his expertise and the time he takes to review your records and keep you up to date. My last visit was due to a fall and hospital emergency visit in Round Rock. He was noted as my family doctor at the Emergency room and Dr Wallis team called me for a follow up visit , which I am sure I would have ignored if they had not done that.