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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. Michael Linsey, M.D.
Pasadena, CA · $82 in drug and device payments (2025) · (626) 577-1675
Dr. Muhammad Iqbal, M.D.
Pasadena, CA · $142 in drug and device payments (2025) · (626) 657-0863
Dr. Nirmal Kumar, M.D.
Pasadena, CA · No drug or device payments recorded (2025) · (626) 798-8400
Dr. Sevag Balikian, M.D.
Pasadena, CA · $137 in drug and device payments (2025) · (626) 352-0010
Dr. Syeda Ali, MD
Pasadena, CA · No drug or device payments recorded (2025) · Telehealth · (626) 578-7131
Dr. Richard Bloom, MD
Pebble Beach, CA · No drug or device payments recorded (2025) · (831) 626-3256
Dr. Farid Osman, MD
Petaluma, CA · $27 in drug and device payments (2025) · Telehealth · (707) 765-3343
Dr. Eric Lai, M.D.
Pleasanton, CA · $15,445 in drug and device payments (2025) · Telehealth · (925) 463-1680
Dr. Leena Mehandru, M.D.
Pleasanton, CA · $660 in drug and device payments (2025) · Telehealth · (925) 463-1680
Dr. Peter Lee, MD
Pleasanton, CA · $681 in drug and device payments (2025) · Telehealth · (925) 463-1680
Dr. Edward Barnes, M.D.
Pomona, CA · $19 in drug and device payments (2025) · (909) 706-3779
Dr. Nazia Siddiqi, M.D.
Pomona, CA · $148 in drug and device payments (2025) · Telehealth · (909) 447-8585
Dr. Victor Pappoe, MD
Pomona, CA · No drug or device payments recorded (2025) · (909) 623-1561
Dr. Raghu Konanur Venkataram
Porter Ranch, CA · No drug or device payments recorded (2025) · Telehealth · (818) 271-2400
Dr. Melody Dumlao, M.D
Porterville, CA · $53 in drug and device payments (2025) · Telehealth · (559) 788-6340
Dr. Nirupama Vemuri, MD
Porterville, CA · $977 in drug and device payments (2025) · Telehealth · (559) 784-4925
Dr. David Momand, M.D.
Rancho Mirage, CA · $109 in drug and device payments (2025) · (760) 341-4839
Dr. Rodolfo Batarse, M.D.
Rancho Mirage, CA · $150,524 in drug and device payments (2025) · (760) 773-2200
Dr. Avi Hettena, M.D.
Rancho Santa Fe, CA · No drug or device payments recorded (2025) · (858) 756-2116
Dr. Bruce Bartlow, M.D.
Redding, CA · No drug or device payments recorded (2025) · (530) 232-3000
Dr. Marcia Mccampbell, M.D.
Redding, CA · No drug or device payments recorded (2025) · (530) 244-8349
Dr. Norman Wall, DO
Redding, CA · $241 in drug and device payments (2025) · (530) 232-3000
Dr. Patricia Blakely, M.D.
Redlands, CA · No drug or device payments recorded (2025) · Telehealth · (909) 793-7500
Dr. Thomas Amato, M.D.
Redlands, CA · No drug or device payments recorded (2025) · (909) 793-7500
Dr. Mohammad Ahraz Hussain, MD
Redondo Beach, CA · No drug or device payments recorded (2025) · (832) 469-2099
Dr. Anagha Jain, MD
Redwood City, CA · No drug or device payments recorded (2025) · (650) 299-4107
Dr. Charles Feldman, MD
Redwood City, CA · No drug or device payments recorded (2025) · (650) 299-2000
Dr. Phillip Ng, MD
Redwood City, CA · No drug or device payments recorded (2025) · (650) 327-8888
Dr. Eyal Shtorch, MD
Reseda, CA · $492 in drug and device payments (2025) · (424) 421-6001
Dr. Nicolas Mehis, D.O.
Reseda, CA · No drug or device payments recorded (2025) · Telehealth · (818) 796-2920
Dr. Vartan Papazian, D.O.
Reseda, CA · No drug or device payments recorded (2025) · Telehealth · (818) 371-0338
Dr. Kenneth Chen, MD
Richmond, CA · No drug or device payments recorded (2025) · Telehealth · (510) 307-1500
Dr. Thuy Nguyen
Richmond, CA · No drug or device payments recorded (2025) · (510) 307-1500
Dr. Adina Tanasescu, M.D.
Riverside, CA · $131 in drug and device payments (2025) · (951) 687-2800
Dr. Akpobo Akporotu, MD
Riverside, CA · $567 in drug and device payments (2025) · Telehealth · (855) 745-8600
Dr. Arthur Galoustian, MD
Riverside, CA · $275 in drug and device payments (2025) · (951) 687-2800
Dr. Chao-huang Sun, M.D., MPH
Riverside, CA · No drug or device payments recorded (2025) · (951) 687-2800
Dr. Dalia Zaky Dawoud, MD
Riverside, CA · $627 in drug and device payments (2025) · (909) 882-9150
Dr. Hamik Martirosyan, MD
Riverside, CA · $120 in drug and device payments (2025) · (909) 353-2000
Dr. Henry Dorman, M.D.
Riverside, CA · No drug or device payments recorded (2025) · (951) 343-7700
Dr. Hira Al-adroos
Riverside, CA · $581 in drug and device payments (2025) · (951) 786-5350
Dr. Howard Lee, DO
Riverside, CA · $158 in drug and device payments (2025) · (909) 353-2000
Dr. John Robertson, M.D.
Riverside, CA · No drug or device payments recorded (2025) · (951) 687-2800
Dr. Joseph Lee, M.D.
Riverside, CA · No drug or device payments recorded (2025) · (951) 687-2800
Dr. Kirollos Zaki, D.O
Riverside, CA · $155 in drug and device payments (2025) · (951) 687-2800
Dr. Mosen Istwani, MD
Riverside, CA · $263 in drug and device payments (2025) · (951) 343-1978
Dr. Naveen Gupta, MD
Riverside, CA · No drug or device payments recorded (2025) · Telehealth · (909) 353-2000
Dr. Rizwan Badar, M.D.
Riverside, CA · $575 in drug and device payments (2025) · (951) 687-2800
Dr. Salam Ishak, M.D
Riverside, CA · $1,346 in drug and device payments (2025) · (951) 687-2800
Dr. Susan Sun, MD
Riverside, CA · No drug or device payments recorded (2025) · (909) 353-2000

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.