Dr. John C. Williamson is an urologist in Austin, Texas and is affiliated with multiple hospitals in the area, including Ascension Seton Medical Center Austin, St. David's Round Rock Medical Center and South Austin Surgery Center. He received his medical degree from The University of Texas Health Science Center at San Antonio and has been in practice for more than 20 years. Dr. John C. Williamson accepts Aetna, Blue Cross, United Healthcare - see other insurance plans accepted. Dr. John C. Williamson is highly recommended by patients.