California Urology expert witnesses are board-certified physicians from leading systems like UCLA Health, UCSF, Stanford, and major Kaiser and Sutter networks. They practice in urban trauma centers, community hospitals, VA facilities, and high-volume outpatient clinics serving diverse and aging populations. Many focus on oncology, endourology, female pelvic medicine, infertility, or pediatric urology. They assess standards of care, diagnostic accuracy, surgical technique, postoperative management, and long-term outcomes in urologic disease.