Thomas Chi, MD, MBA

Dr. Thomas Chi, MD

Thomas Chi, MD, MBA

Professor of Urology
Associate Chair for Clinical Affairs
Kutzmann Endowed Professor in Clinical Urology


MA, 2001, Stanford University, Sociology
MA, 2001, Stanford University, Music
MD, 2005, University of California, San Francisco, Medicine


Dr. Thomas Chi, MD, graduated as a President's Scholar from Stanford University with a Bachelor of Arts in Human Biology as well as Masters degrees in both Sociology and Music. He went on to earn his medical degree from the University of California, San Francisco School of Medicine. After graduating, he completed two years of general surgery residency training and then a urology residency at UCSF. After completing his Chief Resident year in the Department of Urology, he continued on to finish a fellowship in Endourology and Laparoscopy under the mentorship of Dr. Marshall L. Stoller.

During his fellowship, Dr. Chi was awarded grant funding from the National Institutes of Health and the American Urological Association Urology Care Foundation to research the fundamental mechanisms underlying the formation of urinary stones. During that time he developed a novel model for the study of kidney stones utilizing the common fruit fly, Drosophila melanogaster. He is the 2020 recipient of the AUA Gold Cystoscope Award, which is presented annually to a urologist distinguished by outstanding contributions to the profession within ten years of completing residency training. In the start of the academic year in 2020, Dr. Chi earned his professorship position in urology.

Clinical Interests

He joined the UCSF faculty of the Department of Urology in 2013 where his clinical interests include the care of patients with urinary stone disease, benign prostatic hypertrophy (BPH) and those in need of minimally invasive surgery. He specializes in the performance of endoscopic, laparoscopic, and percutaneous surgeries. Dr. Chi has used ultrasound guidance to create innovative radiation-free kidney stone surgeries for stone removal, representing the first program of its kind in the United States. He is also experienced in performing Holmium Laser Enucleation of the Prostate (HoLEP) - a minimally invasive operation to treat men with an enlarged prostate. In addition, Dr. Chi performs advanced laparoscopic surgery for patients needing surgery of the kidney, ureter, and bladder. He has established ReSKU, the Registry for Stones of the Kidneys and Ureter, the first kidney stone registry of its kind for tracking patient clinical outcomes and is an internationally recognized specialist in the use of ultrasound in the management of kidney stones to minimize patient radiation exposure.

Research Interests

In addition to his clinical interests, Dr. Chi supervises an NIH-funded translational science lab (click here to be directed to Dr. Chi's lab website) where he leads a cross-disciplinary research team. His research focuses on understanding the genetic and microbial environment of the kidney related to how kidney stones form and developing new medical preventative interventions. He has published over 70 peer-reviewed articles and book chapters spanning both basic science as well as epidemiologic approaches centered around improving the care of patients with urinary stone disease.

Patient Contact

400 Parnassus Ave, 6th Floor Urology Clinic
A610, Box 0330
San Francisco, CA 94143-0330
Fax:  415.353.2480 or 415.353.2641

Academic Contact

400 Parnassus Ave,
6th Floor Urology Clinic
Box 0330

San Francisco, CA 94143-0330

Fax: 415.353.2480 or 415.353.2641


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