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. Antiem Bui, D.O.
Lakewood, CA · $723 in drug and device payments (2025) · Telehealth · (562) 630-3111
Dr. Avedik Semerjian, MD, FACP, FASN
Lakewood, CA · $164 in drug and device payments (2025) · (562) 630-3111
Dr. Bikram Sekhon
Lakewood, CA · No drug or device payments recorded (2025) · Telehealth · (562) 630-3111
Dr. Kevin Kin, D.O.
Lakewood, CA · No drug or device payments recorded (2025) · Telehealth · (562) 630-3111
Dr. Kyaw Moe, MD
Lakewood, CA · $642 in drug and device payments (2025) · Telehealth · (562) 286-6466
Dr. Michael Fischman, M.D.
Lakewood, CA · No drug or device payments recorded (2025) · (562) 630-3111
Dr. Daniel Leininger, D.O.
La Mesa, CA · $45 in drug and device payments (2025) · Telehealth · (619) 461-3880
Dr. Frank Stella, M.D.
La Mesa, CA · No drug or device payments recorded (2025) · (619) 461-3880
Dr. George Fadda, M.D.
La Mesa, CA · $53,561 in drug and device payments (2025) · Telehealth · (619) 461-3880
Dr. John Thompson, M.D.
La Mesa, CA · $122 in drug and device payments (2025) · Telehealth · (619) 461-3880
Dr. Luan Do, M.D.
La Mesa, CA · $186 in drug and device payments (2025) · (619) 461-3880
Dr. Lucy Miller, M.D.
La Mesa, CA · $122 in drug and device payments (2025) · Telehealth · (619) 461-3880
Dr. Abraham Paykar, M.D.
Lancaster, CA · No drug or device payments recorded (2025) · (661) 723-3131
Dr. Bassam Hadaya, MD
Lancaster, CA · No drug or device payments recorded (2025) · (661) 948-1388
Dr. Bassel Hadaya, M.D.
Lancaster, CA · $514 in drug and device payments (2025) · Telehealth · (661) 948-1388
Dr. Dennis Tse, M.D.
Lancaster, CA · $30 in drug and device payments (2025) · (661) 945-5984
Dr. Florcita Alvarez-galoosian, MD
Lancaster, CA · No drug or device payments recorded (2025) · (661) 874-4050
Dr. Ghassan Dahhan, MD
Lancaster, CA · No drug or device payments recorded (2025) · (661) 948-1388
Dr. Joseph Mahalli
Lancaster, CA · $142 in drug and device payments (2025) · Telehealth · (661) 948-1388
Dr. Nanette Fonte, M.D.
Lancaster, CA · $318 in drug and device payments (2025) · Telehealth · (661) 948-1388
Dr. Rendell Manalo, D.O.
Lancaster, CA · $204 in drug and device payments (2025) · Telehealth · (661) 948-1388
Dr. Sung Yang, MD
Lancaster, CA · $53 in drug and device payments (2025) · (661) 948-1388
Dr. Tarek Karam, MD
Lancaster, CA · $40 in drug and device payments (2025) · (833) 574-2273
Dr. Rohini Singh, D.O
La Palma, CA · $151 in drug and device payments (2025) · Telehealth · (714) 562-8560
Dr. Afshin Ahoubim, M.D
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-4000
Dr. Alfred Cottrell, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-2191
Dr. Amir Abdi Pour, MD
Loma Linda, CA · $1,673 in drug and device payments (2025) · Telehealth · (909) 202-0252
Dr. Annie Hong
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 825-7084
Dr. Chidinma Enyinna
Loma Linda, CA · No drug or device payments recorded (2025) · Telehealth · (909) 558-4074
Dr. Divya Sood, MD
Loma Linda, CA · $203 in drug and device payments (2025) · Telehealth · (909) 558-2624
Dr. James Mcmillan, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 583-6090
Dr. Jasjot Bhullar, M.D.
Loma Linda, CA · $608 in drug and device payments (2025) · Telehealth · (909) 580-4000
Dr. Lakshmi Ganesan
Loma Linda, CA · $6,462 in drug and device payments (2025) · Telehealth · (909) 558-4174
Dr. Matthew Kaptein, M.D.
Loma Linda, CA · $150 in drug and device payments (2025) · Telehealth · (909) 558-4906
Dr. Melin Narayan, M.D.,
Loma Linda, CA · $1,164 in drug and device payments (2025) · Telehealth · (909) 558-2624
Dr. Mohammad Sharif, M.D
Loma Linda, CA · $28 in drug and device payments (2025) · (909) 558-4000
Dr. Mohsin Mirza, MBBS
Loma Linda, CA · $553 in drug and device payments (2025) · Telehealth · (909) 558-4000
Dr. Navin Jaipaul, MD, MHS
Loma Linda, CA · $2,250 in drug and device payments (2025) · (909) 583-6090
Dr. Rafael Villicana, MD
Loma Linda, CA · $110,782 in drug and device payments (2025) · Telehealth · (909) 558-3636
Dr. Richard Swabb, M.D.
Loma Linda, CA · No drug or device payments recorded (2025) · (909) 558-2191
Dr. Roy Mathew, M.D.
Loma Linda, CA · $51 in drug and device payments (2025) · (909) 825-7084
Dr. Rungwasee Rattanavich
Loma Linda, CA · $1,491 in drug and device payments (2025) · Telehealth · (909) 558-3636
Dr. Sarah Azer, MD
Loma Linda, CA · $102 in drug and device payments (2025) · Telehealth · (909) 558-2860
Dr. Sayna Norouzi, M.D.
Loma Linda, CA · $177,983 in drug and device payments (2025) · Telehealth · (909) 558-4499
Dr. Seigmund Teichman, M.D.
Loma Linda, CA · $125 in drug and device payments (2025) · Telehealth · (909) 558-2191
Dr. Sunil Jain, MBBS, MD
Loma Linda, CA · $372 in drug and device payments (2025) · Telehealth · (909) 558-4000
Dr. Thanh Hoang, M.D.
Loma Linda, CA · $1,019 in drug and device payments (2025) · Telehealth · (909) 558-2191
Dr. Alan Erlbaum, M.D.
Long Beach, CA · $253 in drug and device payments (2025) · Telehealth · (562) 595-7426
Dr. Alice Park, M.D.
Long Beach, CA · $184 in drug and device payments (2025) · Telehealth · (562) 595-7426
Dr. Allen Warner, M.D.
Long Beach, CA · No drug or device payments recorded (2025) · (562) 426-3333

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.