Find a Doctor

Dr. Stephen B. Williams is Professor (tenured) and Chief of the Division of Urology, Department of Surgery at the University of Texas Medical Branch where he is clinically active, engaged in teaching, and administration. He also holds the Robert Earl Cone Endowed Professorship and is the Director of Urologic Oncology, Medical Director of High Value Care for UTMB Health System, and Associate Chief Medical Officer at UTMB Clear Lake.

Dr. Williams is currently a member of many national and international societies, which include the American Urological Association, European Association of Urology, Society International Urology, Society of Urologic Oncology and the American Society of Clinical Oncology. He is on the board for the International Bladder Cancer Network and is a recognized expert in bladder cancer and health services research. Dr. Williams has authored over 200 peer-reviewed publications and has presented his work at numerous national and international meetings. He has previously been invited to present his work at the Institute of Medicine in Washington, DC to help guide health policy decision-making.

Dr. Sreshta was born and raised in Houston, Texas where he attended Bellaire High School. He received his BS in biomedical engineering from Washington University in St. Louis. He obtained his medical degree at The University of Texas Medical Branch where he also completed his surgical internship and urology residency. He served as chief resident of urology in 2013 and was nominated for the outstanding overall UTMB resident award.

Following his residency, Dr. Sreshta joined Texas Oncology, where he worked for their urology specialty group for 3 years. During that time he helped develop and advance the robotic surgery program at Clear Lake Regional hospital. Dr. Sreshta is also an active member of the Endourological Society, the South Central section of the AUA, and the Texas Urological Society.

Dr. Sreshta's clinical interests include minimally-invasive surgery (robotics, endoscopy, laparoscopy), kidney stone disease, voiding dysfunction, and surgical simulation.

Dr. Sonstein is an Assistant Professor of Surgery in the Division of Urology. He graduated Cum Laude from Texas A&M University with a B.S. in Psychology. He received his medical degree from the University of Texas Medical Branch, and stayed on at UTMB for residency training in Urology. His current areas of research include prostate cancer screening, urethral stricture disease, and comparing outcomes of robotic versus open surgery. His areas of clinical interest include robotic surgery, reconstructive urology, as well as general urology.