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. Neha Jain, MD
Oakland, CA · No drug or device payments recorded (2025) · (510) 422-3522
Dr. Ole Dierks, M.D.
Oakland, CA · $282 in drug and device payments (2025) · (773) 332-8442
Dr. Sijie Zheng, M.D.
Oakland, CA · $10,107 in drug and device payments (2025) · Telehealth · (510) 752-1000
Dr. Sonny Nguyen, MD
Oakland, CA · No drug or device payments recorded (2025) · Telehealth · (510) 752-5438
Dr. Uchenna Nwosu
Oakland, CA · No drug or device payments recorded (2025) · Telehealth · (510) 752-1000
Dr. Yakuan Yvonne Chen, M.D.
Oakland, CA · $2,082 in drug and device payments (2025) · Telehealth · (510) 451-0996
Dr. Yiann Chen, MD
Oakland, CA · No drug or device payments recorded (2025) · (510) 752-1000
Dr. Amy Matayoshi, M.D.
Oceanside, CA · No drug or device payments recorded (2025) · Telehealth · (760) 967-9900
Dr. Andrew Liu, MD
Oceanside, CA · $160 in drug and device payments (2025) · Telehealth · (760) 967-9900
Dr. Naing Kyaw, MD
Oceanside, CA · $8,456 in drug and device payments (2025) · Telehealth · (760) 967-9900
Dr. Richard Barager, MD
Oceanside, CA · No drug or device payments recorded (2025) · (760) 967-9900
Dr. Talar Kharadjian, MD
Oceanside, CA · $277 in drug and device payments (2025) · Telehealth · (760) 967-9900
Dr. Abid Khan, M.D.
Ontario, CA · $777 in drug and device payments (2025) · (909) 984-0313
Dr. Hla Myint Maung Hwang, M.D.
Ontario, CA · $424 in drug and device payments (2025) · Telehealth · (909) 482-4462
Dr. Amer Jabara, M.D.
Orange, CA · $22 in drug and device payments (2025) · Telehealth · (714) 639-4901
Dr. Andrew Ross, M.D.
Orange, CA · $2,551 in drug and device payments (2025) · Telehealth · (714) 456-5555
Dr. Anna Jin, M.D.
Orange, CA · $272 in drug and device payments (2025) · (714) 456-8888
Dr. Antoney Ferrey, M.D.
Orange, CA · $57 in drug and device payments (2025) · (714) 880-7812
Dr. Anum Hamiduzzaman, M.D.
Orange, CA · No drug or device payments recorded (2025) · (714) 456-8888
Dr. Charles Kaupke, MD
Orange, CA · No drug or device payments recorded (2025) · (714) 639-4601
Dr. Cyril Barton, MD
Orange, CA · No drug or device payments recorded (2025) · (714) 456-8978
Dr. Ekamol Tantisattamo, MD
Orange, CA · $2,685 in drug and device payments (2025) · Telehealth · (714) 456-7720
Dr. Fawaz Al Ammary, M.D.
Orange, CA · No drug or device payments recorded (2025) · (714) 456-7002
Dr. Hamid Moradi, M.D.
Orange, CA · No drug or device payments recorded (2025) · (714) 456-5142
Dr. Henry Yuan, M.D.
Orange, CA · $170 in drug and device payments (2025) · Telehealth · (714) 771-8000
Dr. Jason Chou, M.D.
Orange, CA · No drug or device payments recorded (2025) · Telehealth · (714) 456-5142
Dr. Jiten Mehta, D0
Orange, CA · $409 in drug and device payments (2025) · Telehealth · (714) 836-4204
Dr. Jula Inrig, MD
Orange, CA · No drug or device payments recorded (2025) · (714) 880-7812
Dr. Kamyar Kalantar-zadeh, M.D.
Orange, CA · $32,972 in drug and device payments (2025) · (714) 880-7812
Dr. Kevin Harley, M.D.
Orange, CA · $42 in drug and device payments (2025) · (714) 456-5142
Dr. Kevin Pham, M.D.
Orange, CA · $4,143 in drug and device payments (2025) · Telehealth · (714) 836-4204
Dr. Lawrence Nguyen, DO
Orange, CA · No drug or device payments recorded (2025) · (714) 456-7890
Dr. Linh Thong, M.D.
Orange, CA · No drug or device payments recorded (2025) · Telehealth · (714) 639-4901
Dr. Madeleine Pahl, MD
Orange, CA · $862 in drug and device payments (2025) · Telehealth · (714) 456-8978
Dr. Michael Neinast, DO
Orange, CA · $1,144 in drug and device payments (2025) · (714) 456-8888
Dr. Michael Rutten, M.D.
Orange, CA · No drug or device payments recorded (2025) · (714) 639-4901
Dr. Michael Yap, M.D.
Orange, CA · $14 in drug and device payments (2025) · (657) 231-2099
Dr. Nosratola Vaziri, MD
Orange, CA · No drug or device payments recorded (2025) · (714) 456-8978
Dr. Payal Mittal, M.D.
Orange, CA · $135 in drug and device payments (2025) · (714) 836-4204
Dr. Ramy Hanna, M.D.
Orange, CA · $80,048 in drug and device payments (2025) · Telehealth · (714) 880-7812
Dr. Rebecca Ahdoot, M.D.
Orange, CA · $12,059 in drug and device payments (2025) · Telehealth · (714) 880-7812
Dr. Shubham Dixit, DO
Orange, CA · $684 in drug and device payments (2025) · (714) 456-5413
Dr. Stephanie Cheung, MD
Orange, CA · $154 in drug and device payments (2025) · Telehealth · (714) 456-5142
Dr. Thu Le, M.D.
Orange, CA · $8,179 in drug and device payments (2025) · Telehealth · (714) 456-8888
Dr. Uttam Reddy, M.D.
Orange, CA · $300 in drug and device payments (2025) · (714) 456-7720
Dr. Yasir Qazi, M.D.
Orange, CA · $105,997 in drug and device payments (2025) · (714) 771-8000
Dr. Yongen Chang, MD, PHD
Orange, CA · $31,730 in drug and device payments (2025) · Telehealth · (714) 456-7004
Dr. Khurram Mumtaz, M.D.
Oroville, CA · $46 in drug and device payments (2025) · (530) 712-2171
Dr. Masoud Haghi, DO
Oroville, CA · $489 in drug and device payments (2025) · Telehealth · (646) 574-2618
Dr. Ali Dana, M.D.
Oxnard, CA · $24 in drug and device payments (2025) · Telehealth · (805) 983-0691

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.