Prof. Yair Lotan, M.D. is the Chief of Urologic Oncology, and holder of the Helen J. and Robert S. Strauss Professorship in Urology at UT Southwestern Medical Center at Dallas. Department of Urology. He is also the Medical Director of the Urology Clinic at UT Southwestern and Parkland Health and Hospital System. He was class valedictorian in high school and graduated with high honors from the University of Texas at Austin and Baylor College of Medicine in Houston. He trained in general surgery and urology at UT Southwestern and joined the faculty in 2003. A board-certified urologist, Dr. Lotan treats patients with bladder, prostate, kidney, ureteral, and testicular cancer. He also handles general urologic conditions, such as kidney stones and vasectomies. He is known nationally for his research on urine markers and molecular markers, which will help determine which patients are at higher risk for recurrent cancer. He is also involved in health economics research, which evaluates the cost-effectiveness of surgery and cancer prevention. Dr. Lotan is the co-chair of the Harold C. Simmons Comprehensive Cancer Center disease oriented team for urologic cancers. He is also a member of UT Southwestern’s Clinical Research Planning Group and the Tissue Bank Steering Committee and Cancer Committee. He is a frequent guest speaker at medical conferences around the world and belongs to numerous professional organizations, including the American Urological Association, the Society of Urologic Oncology, and the Bladder Cancer Advocacy Network. He has published hundreds of research articles and several book chapters on urologic care and procedures, and he serves as editorial reviewer for medical periodicals such as the Journal of Urology, European Urology, Cancer, Urologic Oncology, and the British Journal of Urology International. Dr. Lotan was included in D Magazine's Best Doctors list for 2018.