HealthcareDiscovery.AI / Doctors / California / Nephrology

Nephrologists in California

Data updated monthly · Last refresh October 2026

1,476 Nephrology providers practice in California, including 665 (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.

1,476providers
665telehealth
Los Angelestop city

Nephrology by city in California

Choose a city to see providers there.

Nephrology in Los Angeles153 providers
Nephrology in San Diego75 providers
Nephrology in San Francisco71 providers
Nephrology in Sacramento59 providers
Nephrology in Stanford39 providers
Nephrology in Fresno37 providers
Nephrology in Torrance36 providers
Nephrology in Orange33 providers
Nephrology in San Jose32 providers
Nephrology in Berkeley24 providers
Nephrology in Loma Linda23 providers
Nephrology in Fountain Valley20 providers
Nephrology in Riverside18 providers
Nephrology in Long Beach17 providers
Nephrology in Bakersfield17 providers
Nephrology in Stockton16 providers
Nephrology in Modesto16 providers
Nephrology in La Jolla15 providers
Nephrology in Palo Alto15 providers
Nephrology in Montebello14 providers
Nephrology in Oakland13 providers
Nephrology in Roseville13 providers
Nephrology in Beverly Hills13 providers
Nephrology in Pasadena13 providers

Nephrology 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. Steven Sawelson, MD
Torrance, CA · $721 in drug and device payments (2025) · (310) 542-7997
Dr. Stuart Winkler, M.D.
Torrance, CA · No drug or device payments recorded (2025) · (310) 325-4517
Dr. Taraneh Tehrani, M.D.
Torrance, CA · $175 in drug and device payments (2025) · (310) 891-6623
Dr. Tiane Dai, MD
Torrance, CA · $398 in drug and device payments (2025) · (310) 222-5026
Dr. Vinh Cam, M.D.
Torrance, CA · $32,975 in drug and device payments (2025) · Telehealth · (310) 325-4517
Dr. Wayne Tsang, M.D.
Torrance, CA · $534 in drug and device payments (2025) · (310) 793-6677
Dr. Zar Chan, M.D
Torrance, CA · $627 in drug and device payments (2025) · (310) 222-3891
Dr. Aibar Huatuco, M.D.
Tracy, CA · $446 in drug and device payments (2025) · (209) 836-1627
Dr. Meenal Shah, M.D.
Tracy, CA · $121 in drug and device payments (2025) · Telehealth · (209) 830-4063
Dr. Fedoua Er Rbii, MD
Travis Afb, CA · No drug or device payments recorded (2025) · (707) 816-5930
Dr. Huyen Nguyen, M.D.
Travis Afb, CA · No drug or device payments recorded (2025) · (707) 437-2370
Dr. John Baron, D.O.
Travis Afb, CA · $397 in drug and device payments (2025) · Telehealth · (707) 423-3369
Dr. Todd Bruno, M.D.
Travis Afb, CA · No drug or device payments recorded (2025) · Telehealth · (707) 816-5930
Dr. Raminder Mand, M.D.
Turlock, CA · $649 in drug and device payments (2025) · Telehealth · (209) 777-3500
Dr. Christine Ives, M.D.
Ukiah, CA · $53 in drug and device payments (2025) · (707) 463-3440
Dr. Chirag Vaidya, MD
Upland, CA · $510 in drug and device payments (2025) · Telehealth · (909) 981-5882
Dr. Erlinda Uy - Concepcion, M.D.
Upland, CA · No drug or device payments recorded (2025) · (909) 981-5882
Dr. Gerald Friedman, MD
Upland, CA · No drug or device payments recorded (2025) · (909) 373-1799
Dr. Jin Wang, M.D.
Upland, CA · No drug or device payments recorded (2025) · Telehealth · (909) 981-5882
Dr. Jonardi Handoko, MD
Upland, CA · $218 in drug and device payments (2025) · (909) 931-3727
Dr. Mary Bui
Upland, CA · $291 in drug and device payments (2025) · Telehealth · (909) 981-5882
Dr. Minna Huang, M.D.
Upland, CA · $233 in drug and device payments (2025) · (909) 981-5882
Dr. Mohammed Alam, M.D.
Upland, CA · No drug or device payments recorded (2025) · (909) 981-5882
Dr. Nima Naimi, D.O.
Upland, CA · $39 in drug and device payments (2025) · Telehealth · (909) 981-5882
Dr. Saman Sarani, M.D.
Upland, CA · $751 in drug and device payments (2025) · (909) 981-5882
Dr. Solomon Huang, M.D.
Upland, CA · $495 in drug and device payments (2025) · Telehealth · (909) 981-5882
Dr. Aaron Young
Vacaville, CA · $175 in drug and device payments (2025) · (707) 446-4379
Dr. Ehsan Shahmir, MD
Vacaville, CA · $171 in drug and device payments (2025) · (707) 446-4379
Dr. Flordeliza Lilagan, M.D.
Vacaville, CA · No drug or device payments recorded (2025) · Telehealth · (707) 651-5520
Dr. Piangwarin Phaosawasdi, M.D
Vacaville, CA · $958 in drug and device payments (2025) · (707) 446-4379
Dr. Amin Motaref, MD
Valencia, CA · No drug or device payments recorded (2025) · Telehealth · (661) 753-5464
Dr. Ritu Shye
Valencia, CA · $72 in drug and device payments (2025) · Telehealth · (661) 753-5464
Dr. Caitlin Richardson-royer, M.D.
Vallejo, CA · No drug or device payments recorded (2025) · Telehealth · (707) 651-1000
Dr. Hashem Dajani, MD
Vallejo, CA · No drug or device payments recorded (2025) · (707) 685-7410
Dr. Julia Krasner, MD
Vallejo, CA · No drug or device payments recorded (2025) · (707) 651-1000
Dr. Kar Own, MD
Vallejo, CA · No drug or device payments recorded (2025) · (707) 651-1000
Dr. Keyur Patel, MD
Vallejo, CA · $153 in drug and device payments (2025) · Telehealth · (707) 651-1000
Dr. Maryam Sharif-hassanabadi, M.D.
Vallejo, CA · No drug or device payments recorded (2025) · Telehealth · (707) 651-2570
Dr. Maung Myint, MD
Vallejo, CA · No drug or device payments recorded (2025) · Telehealth · (707) 651-1000
Dr. Waseem Ahmad, MD
Vallejo, CA · $96 in drug and device payments (2025) · (707) 651-1000
Dr. Balbir Singh, M.D.
Van Nuys, CA · $1,244 in drug and device payments (2025) · (818) 988-2190
Dr. Hamid Sadeghi, M.D.
Van Nuys, CA · $345 in drug and device payments (2025) · (818) 901-9906
Dr. Mark Romoff, M.D.
Van Nuys, CA · $277 in drug and device payments (2025) · Telehealth · (818) 787-2410
Dr. Sumeet Singh, PA-C
Van Nuys, CA · $1,488 in drug and device payments (2025) · (818) 988-2190
Dr. Vimal Vermani, M.D.
Ventura, CA · $79 in drug and device payments (2025) · Telehealth · (805) 648-9830
Dr. Edgard Vera Tapia, MD
Victorville, CA · $404 in drug and device payments (2025) · (760) 780-4179
Dr. Ernesto Sequeira Abarca, M.D.
Victorville, CA · $1,055 in drug and device payments (2025) · (442) 284-0080
Dr. Hosameldin Madkour, M.D.
Victorville, CA · $347 in drug and device payments (2025) · Telehealth · (760) 241-3306
Dr. Jay Shankar, MD
Victorville, CA · $674 in drug and device payments (2025) · (760) 241-3306
Dr. Opeyemi Oladele, M.D.
Victorville, CA · $279 in drug and device payments (2025) · Telehealth · (760) 241-3306

Conditions Nephrology providers in California commonly treat

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

Common questions

How many Nephrology providers are in California?

There are 1,476 Nephrology providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.

Do Nephrology providers in California offer telehealth?

Yes. 665 of the 1,476 Nephrology providers in California (about 45%) report offering telehealth services in CMS data.

Which cities in California have the most Nephrology providers?

Los Angeles (153), San Diego (75), San Francisco (71) have the highest concentration of Nephrology providers in California.

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

885 of 1,476 Nephrology providers in California (60%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Nephrology providers in California treat?

Nephrology providers commonly treat chronic kidney disease, kidney stones, dialysis care, high blood pressure 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 Nephrologists in California work in independent practices or large health systems?

Among 1,107 Nephrologists in California enrolled in Medicare, 30% bill through a solo or small practice with fewer than 10 clinicians, 21% through a mid-size group of 10 to 99, and 49% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Nephrologists in California work at?

According to CMS facility affiliation records, the California hospitals where the most Nephrologists hold privileges are Uci Health-Orange in Orange; Cedars-Sinai Medical Center in Los Angeles; Stanford Health Care in Stanford.

Nephrology in all 50 states Search all 1,476 in the directory Ask Zach for help choosing

Related

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
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 Nephrology in California? Get featured.