Skip to Main Content

Dr. Justin S. Ahn is a urologist who specializes in caring for patients with urinary stones and obstructions. He has expertise in minimally invasive surgical techniques, such as laser prostate enucleation (using lasers to remove excess tissue blocking urine flow), ultrasound-guided access for complex or large stone removal, and robotic and laparoscopic procedures for the urinary tract.

In his research, Ahn looks at using new technologies to treat urinary stone and prostate disease. In 2020, he studied the role of contrast-enhanced ultrasound in the operating room to reduce the need for painful ureteral stents (tubes that allow urine to drain from the kidney) after kidney stone surgery. Passionate about flying planes and other aircraft, he is interested in applying aviation industry practices to patient care and medical education. He has collaborated with aviation safety experts to develop educational conference sessions in which health care providers and trainees can safely share their near-miss or close-call medical events.

Ahn earned his undergraduate degree at Emory University and his medical degree at the University of Texas Southwestern Medical School, where he was elected to the Alpha Omega Alpha Honor Medical Society. He completed a residency in urology at the University of Washington, followed by a fellowship at UCSF in endourology (endoscopic techniques for the urinary tract) and laparoscopy. During his medical training, he earned awards for his teaching, research and clinical aptitude, as well as the Urology Care Foundation's Research Scholar Award.

Ahn maintains currency as a FAA commercial pilot with instrument, multiengine, seaplane and Citation jet type ratings. He is also an avid skier and snowboarder and former instructor. When not in the air or on mountains, he enjoys exercising, gardening and spending time with his family. He is originally from the Los Angeles area.

  • Board Certifications

    American Board of Urology, Urology, 2024

  • Fellowships

    UCSF, Urology, 2021

  • Residencies

    University of Washington School of Medicine, Urology, 2019

  • Internship

    University of Washington School of Medicine, General Surgery, 2014

  • Education

    University of Texas Southwestern Medical Center at Dallas Southwestern Medical School, 2013

  • Languages

    English

My goals are to educate you so we can make the right decisions together, and to provide the same quality care I would for a family member.

My reviews

4.9

Overall Experience
287 Ratings
About our process
Mar 23, 2025
The office was great and Dr Ahn is very patient and explains things well. Did not feel at all rushed which made for a very comforting experience.
Mar 10, 2025
Dr. Ahn was very respectful and informed me greatly regarding my condition as well as the treatment that was decided upon. I would definitely refer friends and family to him.
Mar 10, 2025
Excellent
Mar 06, 2025
Dr. AHN is VIP# 1
Feb 08, 2025
Outstanding !!!
Jan 22, 2025
Dr Ahn is the best. He explained and scanned and diagramed to gives us a clear picture of the previous and upcoming procedure to be performed. UCSF cares so much. We are thankful to all.
Nov 21, 2024
So impressed that referred prospective patient
Oct 22, 2024
Good
Oct 19, 2024
Doctor and all staff handled this visit and previous ones with excellent care
Oct 17, 2024
I was very impressed by Dr. Ahn's responsiveness and thoroughness in suggesting treatment options.
Oct 16, 2024
The MD was "REALLY "" FANTASTIC
Oct 10, 2024
I'm very pleased with the care Dr Ahn provided
Oct 08, 2024
Excellent service by the doctor and his staff
Oct 04, 2024
I was quite comfortable both speaking with Dr. Ahn during our video appointment as well as the interactions I had with two different individuals. Unfortunately, I only recall the name of one, Wendy (I'm SO sorry!).
Sep 23, 2024
Had to wait for over an hour after appointment time for the Dr. To join the video visit.
Sep 11, 2024
Exemplary!
Aug 21, 2024
Dr. Ahn was extremely thorough and thoughtful during our visit. He explained everything in detail, answered all my questions, and swiftly developed a plan to address my condition. He appeared willing to spend as much time as needed with me, providing clear explanations and attentively listening to my concerns. Dr. Ahn is highly knowledgeable, polite, and respectful.I left the appointment very satisfied.
Aug 20, 2024
Happy & satisfied
Aug 14, 2024
Couldnt' have been better
Aug 10, 2024
I am out of state and prefer Dr Ahn to any local provider I have visited that takes my insurance.
Aug 09, 2024
I have already recommended Dr Ahn to a friend
Jul 19, 2024
Honestlly, I'd give most of these a 6 if I could. Dr. Anh is extremely clear and detailed.
Jul 13, 2024
100% EXCELLENT
Jul 09, 2024
UCSF great service, very professional, makes you feel like you're in good hands (to quote an old AllState insurance ad)
Jun 08, 2024
I had an excellent experience with Dr. Ahn for all of the above reasons.
May 11, 2024
Great listener and clear and thorough explanation of risks, benefits and alternatives of treatment.
May 11, 2024
Best experience ever! Dr. Ahn is remarkably skilled as both a surgeon and with bedside manner.
May 06, 2024
Was promised follow-up phone call and video visit. Neither have happened
Apr 17, 2024
Very accurate and thorough visit notes.
Mar 24, 2024
Great dr explained everything to me very well
Mar 13, 2024
So far so good with Dr. Excellent discussion and most appreciative of his concerns.
Mar 06, 2024
My recent visit with Dr. Ahn was overall a great experience. He had a great bedside manner and provided me with important information regarding his Urological findings to help me make an informed decision about having the HoLEP performed to relieve BPH symptoms.
Jan 04, 2024
Dr. Ahn listened to all my concerns and was very professional in explaining and diagnosing the symptoms discussed. He was excellent with all communications.
Nov 24, 2023
Very professional and friendly
Nov 21, 2023
Dr. Ahn was very knowledgeable and has a good bedside manner
Oct 29, 2023
All in all Dr. Justin Ahn and him team is perfect.
Sep 19, 2023
Very thorough and professional.
Jul 05, 2023
Everything is fine
Jul 05, 2023
Very good
Jul 01, 2023
DrAhn was very attentive to my problem
Jun 29, 2023
The Doctor put me at ease with his friendly manner and communicated with a friendly professionalism.
Jun 03, 2023
Very informative. Talked the process. Answered my questions. Excellent doctor
Jun 01, 2023
I've already recommended this care provider to a relative.
May 26, 2023
Dr. Ahn was very detailed and offered excellent medical advice

Share