

Urology
Leonard Marks, M.D.
Professor and DeKernion Endowed Chair in Urology; Professor in-Residence, Ronald Reagan UCLA Medical Center
Leonard S. Marks, MD, is a Professor of Urology and DeKernion Endowed Chair in Urology at the David Geffen School of Medicine at UCLA. His clinical practice focuses primarily on prostate cancer diagnosis, treatment, and surveillance. Dr. Marks specializes in targeted MRI fusion prostate biopsy, a minimally invasive diagnostic technique for improved cancer detection. His clinical expertise encompasses active surveillance protocols for low- to intermediate-risk prostate cancer, as well as focal th
55+
Years in Practice
Credentials
Board Certifications
- Urology (American Board of Urology)
Education & Training
- University of Texas Medical Branch — M.D., 1969
- Harbor General Hospital — Internship, 1970
- UCLA Medical Center — Urology Residency, 1978
Peer Recognition
- Los Angeles Magazine — Top Doctors
2021
Clinical Focus
Subspecialties
Conditions & Treatments
Practice Details
Hospital Affiliations
- UCLA Health Westwood Urology
- Ronald Reagan UCLA Medical Center
Languages
English, Spanish
Experience
55+ years in practice