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Urologists in California

Data updated monthly · Last refresh October 2026

1,517 Urology providers practice in California, including 688 (45%) offering telehealth. The largest concentration is in Los Angeles. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.

1,517providers
688telehealth
Los Angelestop city

Urology by city in California

Choose a city to see providers there.

Urology in Los Angeles225 providers
Urology in San Diego92 providers
Urology in San Francisco89 providers
Urology in Orange54 providers
Urology in Sacramento43 providers
Urology in Stanford39 providers
Urology in Santa Monica32 providers
Urology in San Jose28 providers
Urology in Oakland26 providers
Urology in Duarte22 providers
Urology in Roseville22 providers
Urology in Loma Linda22 providers
Urology in Walnut Creek20 providers
Urology in Riverside18 providers
Urology in Modesto17 providers
Urology in La Jolla17 providers
Urology in Torrance15 providers
Urology in Newport Beach15 providers
Urology in Beverly Hills14 providers
Urology in Fontana14 providers
Urology in Fresno14 providers
Urology in Burbank14 providers
Urology in Rancho Mirage13 providers
Urology in Santa Clara13 providers

Urology providers in California

Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Richard Nichols, MD
Thousand Oaks, CA · No drug or device payments recorded (2025) · (805) 493-2331
Dr. Alec Koo, M.D.
Torrance, CA · $1,482 in drug and device payments (2025) · Telehealth · (310) 602-5005
Dr. Faisal Ahmed, M.D
Torrance, CA · $1,791 in drug and device payments (2025) · Telehealth · (310) 794-7700
Dr. Farhad Nowzari, M.D.
Torrance, CA · $5,442 in drug and device payments (2025) · Telehealth · (310) 921-1100
Dr. Garrett Matsunaga, M.D.
Torrance, CA · $894 in drug and device payments (2025) · Telehealth · (310) 542-0199
Dr. Gene Naftulin, MD
Torrance, CA · No drug or device payments recorded (2025) · (310) 534-8400
Dr. James Mollenkamp, MD
Torrance, CA · No drug or device payments recorded (2025) · (310) 534-8400
Dr. Kambiz Dardashti, MD
Torrance, CA · $3,019 in drug and device payments (2025) · Telehealth · (310) 534-8400
Dr. Lawrence Flechner, M.D., PH.D.
Torrance, CA · $2,862 in drug and device payments (2025) · Telehealth · (310) 534-8400
Dr. Manish Mehta, MD
Torrance, CA · No drug or device payments recorded (2025) · (310) 406-3900
Dr. Marc Stratton, MD
Torrance, CA · No drug or device payments recorded (2025) · (310) 534-8400
Dr. Marcus Kauffman, MD
Torrance, CA · $643 in drug and device payments (2025) · Telehealth · (310) 953-8391
Dr. Richard Reznichek, M.D.
Torrance, CA · No drug or device payments recorded (2025) · (310) 222-2724
Dr. Royal Park, M.D.
Torrance, CA · $2,009 in drug and device payments (2025) · Telehealth · (310) 602-5005
Dr. Shelby Morrisroe, M.D.
Torrance, CA · $1,860 in drug and device payments (2025) · Telehealth · (310) 542-0199
Dr. Timothy Lesser, MD
Torrance, CA · $1,658 in drug and device payments (2025) · Telehealth · (323) 783-4011
Dr. Salman Razi, MD
Tracy, CA · $94 in drug and device payments (2025) · Telehealth · (209) 833-3449
Dr. Alexander Lo, MD
Travis Afb, CA · $26 in drug and device payments (2025) · (707) 423-7402
Dr. Kathryn Sullivan, MD
Travis Afb, CA · No drug or device payments recorded (2025) · (707) 423-7401
Dr. Yurong Mai, MD
Travis Afb, CA · $41 in drug and device payments (2025) · (707) 423-7402
Dr. Brian Naftulin, M.D.
Truckee, CA · $44 in drug and device payments (2025) · (530) 852-6368
Dr. Gregory Lanouette, M.D.
Truckee, CA · $98 in drug and device payments (2025) · (530) 587-6011
Dr. Mark Wainstein, MD
Truckee, CA · $480 in drug and device payments (2025) · (530) 550-6770
Dr. Ramin Royai, MD
Truckee, CA · No drug or device payments recorded (2025) · (530) 582-6492
Dr. Tu-hi Hong, M.D.
Tulare, CA · $502 in drug and device payments (2025) · (559) 686-0690
Dr. Craig Zippe, M.D.
Turlock, CA · $485 in drug and device payments (2025) · (209) 647-3950
Dr. August Maggio, M.D.
Tustin, CA · No drug or device payments recorded (2025) · (714) 323-5243
Dr. Naum Spiegel, MD
Ukiah, CA · $17 in drug and device payments (2025) · Telehealth · (707) 462-1928
Dr. Paul Jepson, M.D.
Ukiah, CA · No drug or device payments recorded (2025) · (707) 463-8000
Dr. Robert Blackwelder, M.D.
Ukiah, CA · No drug or device payments recorded (2025) · (707) 463-8000
Dr. Christopher Tsai, MD
Upland, CA · $907 in drug and device payments (2025) · Telehealth · (909) 985-9737
Dr. Deepak Sheth, MD
Upland, CA · $38 in drug and device payments (2025) · (909) 920-9800
Dr. Emmanuel Mitsinikos, M.D.
Upland, CA · No drug or device payments recorded (2025) · Telehealth · (909) 949-2242
Dr. Isaac Kelly, M.D.
Upland, CA · $1,256 in drug and device payments (2025) · Telehealth · (909) 985-9737
Dr. Victor Ching, MD
Upland, CA · $2,049 in drug and device payments (2025) · (909) 985-9737
Dr. Aeen Asghar, MD
Vacaville, CA · $2,655 in drug and device payments (2025) · Telehealth · (707) 624-4000
Dr. Edward Levin, MD
Vacaville, CA · $218 in drug and device payments (2025) · (707) 427-4900
Dr. Gricelda Gomez, MD, MPH
Vacaville, CA · $137 in drug and device payments (2025) · Telehealth · (707) 624-4000
Dr. Kadee Thompson, M.D.
Vacaville, CA · $33,952 in drug and device payments (2025) · Telehealth · (707) 427-4900
Dr. Patrick Fisher, MD
Vacaville, CA · $147 in drug and device payments (2025) · Telehealth · (707) 454-5800
Dr. Rose Leu, MD
Vacaville, CA · $172 in drug and device payments (2025) · Telehealth · (707) 427-4900
Dr. Alan Yaghoubian, MD
Valencia, CA · $471 in drug and device payments (2025) · Telehealth · (310) 794-7700
Dr. Albert Samadi, MD
Valencia, CA · $107 in drug and device payments (2025) · Telehealth · (661) 290-5320
Dr. Daniel Brison, MD.
Valencia, CA · $1,678 in drug and device payments (2025) · Telehealth · (661) 290-5320
Dr. Donald Hannoun, M.D.
Valencia, CA · $189 in drug and device payments (2025) · Telehealth · (310) 794-7700
Dr. Jennifer Sung, M.D.
Valencia, CA · No drug or device payments recorded (2025) · (661) 481-2400
Dr. Anthony Acquaviva, MD
Vallejo, CA · No drug or device payments recorded (2025) · (707) 651-1000
Dr. Christopher Knopick, MD
Vallejo, CA · No drug or device payments recorded (2025) · Telehealth · (707) 651-1092
Dr. Eric Engelman, MD
Vallejo, CA · No drug or device payments recorded (2025) · (707) 651-1000
Dr. Ermis Nikas, DO
Vallejo, CA · No drug or device payments recorded (2025) · Telehealth · (707) 651-1000

Conditions Urology providers in California commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Urology providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Urology providers are in California?

There are 1,517 Urology providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.

Do Urology providers in California offer telehealth?

Yes. 688 of the 1,517 Urology providers in California (about 45%) report offering telehealth services in CMS data.

Which cities in California have the most Urology providers?

Los Angeles (225), San Diego (92), San Francisco (89) have the highest concentration of Urology providers in California.

How many Urology providers in California received drug or device company payments?

964 of 1,517 Urology providers in California (64%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Urology providers in California treat?

Urology providers commonly treat kidney stones, enlarged prostate, urinary incontinence, prostate cancer screening, erectile dysfunction and related conditions. Individual practices vary, so confirm with the provider before booking.

Where does this data come from?

Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

Do most Urologists in California work in independent practices or large health systems?

Among 994 Urologists in California enrolled in Medicare, 20% bill through a solo or small practice with fewer than 10 clinicians, 14% through a mid-size group of 10 to 99, and 67% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Urologists in California work at?

According to CMS facility affiliation records, the California hospitals where the most Urologists hold privileges are Uci Health-Orange in Orange; Hoag Memorial Hospital Presbyterian in Newport Beach; Ronald Reagan UCLA Medical Center in Los Angeles.

Related reading on HealthcareDiscovery.AI

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Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Urology in California? Get featured.