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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. Edward Wang, MD
Bellflower, CA · $25 in drug and device payments (2025) · (562) 461-3000
Dr. Joel Golden, M.D.
Bellflower, CA · No drug or device payments recorded (2025) · (562) 920-1632
Dr. Raffi Merjanian, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Rukhsana Siddiqi, MD
Bellflower, CA · $159 in drug and device payments (2025) · (562) 461-3000
Dr. Susy Peng, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Tilden Osako, MD
Bellflower, CA · No drug or device payments recorded (2025) · Telehealth · (562) 461-3000
Dr. Randolph Chen, MD
Belmont, CA · $1,135 in drug and device payments (2025) · (650) 596-7000
Dr. Bryan Wong, MD
Berkeley, CA · $575 in drug and device payments (2025) · Telehealth · (510) 841-0411
Dr. Claudia Iota-herbei
Berkeley, CA · $280 in drug and device payments (2025) · (510) 841-0411
Dr. Denise Ricker, MD
Berkeley, CA · No drug or device payments recorded (2025) · (510) 841-0411
Dr. Donald Block, MD
Berkeley, CA · No drug or device payments recorded (2025) · (510) 841-0411
Dr. Ellen Morrissey, MD
Berkeley, CA · No drug or device payments recorded (2025) · (510) 841-0411
Dr. Golaun Odabaei, M.D
Berkeley, CA · No drug or device payments recorded (2025) · (510) 841-4525
Dr. John Mouratoff, MD
Berkeley, CA · $424 in drug and device payments (2025) · Telehealth · (510) 841-0411
Dr. Josie Tebben, MD
Berkeley, CA · No drug or device payments recorded (2025) · (510) 841-0411
Dr. Lynda Anne Szczech, M.D.
Berkeley, CA · No drug or device payments recorded (2025) · Telehealth · (919) 271-5184
Dr. Malcolm Karlinsky, MD
Berkeley, CA · No drug or device payments recorded (2025) · (510) 841-0411
Dr. Maria Pagtalunan, MD
Berkeley, CA · $216 in drug and device payments (2025) · Telehealth · (510) 841-4525
Dr. Mario Corona, MD
Berkeley, CA · $388 in drug and device payments (2025) · Telehealth · (510) 841-0411
Dr. Michael Ajuria, M.D.
Berkeley, CA · No drug or device payments recorded (2025) · (510) 841-4525
Dr. Monte Wu, MD
Berkeley, CA · $437 in drug and device payments (2025) · Telehealth · (510) 841-0411
Dr. Oliver Khakmahd, MD
Berkeley, CA · $317 in drug and device payments (2025) · Telehealth · (510) 841-0411
Dr. Robert Doud, MD
Berkeley, CA · $126 in drug and device payments (2025) · Telehealth · (510) 841-0411
Dr. Samuel Wong, DO
Berkeley, CA · $144 in drug and device payments (2025) · Telehealth · (510) 841-0411
Dr. Siddhesh Lotlikar, MD
Berkeley, CA · $20 in drug and device payments (2025) · (510) 841-4525
Dr. Simarjit Dhaliwal, MD
Berkeley, CA · No drug or device payments recorded (2025) · (510) 841-4525
Dr. Swati Patel, MD
Berkeley, CA · $45 in drug and device payments (2025) · Telehealth · (510) 841-0411
Dr. Terina Miller, MD
Berkeley, CA · $443 in drug and device payments (2025) · Telehealth · (510) 841-0411
Dr. Terry Maher, MD
Berkeley, CA · No drug or device payments recorded (2025) · (510) 841-4525
Dr. Veena Manjunath, M.D.
Berkeley, CA · $93 in drug and device payments (2025) · (510) 841-0411
Dr. Vikram Suri, MD, PHD
Berkeley, CA · $26 in drug and device payments (2025) · Telehealth · (510) 841-4525
Dr. Bernard Salick, M.D.,
Beverly Hills, CA · No drug or device payments recorded (2025) · (310) 967-3304
Dr. Gregory Proctor, MD
Beverly Hills, CA · $33 in drug and device payments (2025) · (310) 274-7300
Dr. Igwe Ukoha, M.D.,
Beverly Hills, CA · No drug or device payments recorded (2025) · (310) 274-7300
Dr. Jack Ditlove, M.D.
Beverly Hills, CA · $29 in drug and device payments (2025) · (310) 274-0200
Dr. Joel Mittleman, M.D.,
Beverly Hills, CA · No drug or device payments recorded (2025) · (310) 652-9162
Dr. Kaveh Sharif, M.D.
Beverly Hills, CA · $496 in drug and device payments (2025) · (310) 914-9150
Dr. Keith Klein, M.D.,
Beverly Hills, CA · $1,024 in drug and device payments (2025) · Telehealth · (310) 657-9841
Dr. Michael Pablos Quiles, M.D.
Beverly Hills, CA · $1,075 in drug and device payments (2025) · Telehealth · (310) 652-9162
Dr. Sahil Parag, DO
Beverly Hills, CA · $1,312 in drug and device payments (2025) · Telehealth · (310) 652-9162
Dr. Samy Sharobeem, M.D.
Beverly Hills, CA · $1,427 in drug and device payments (2025) · (310) 203-0222
Dr. Sousan Karimi, M.D.,
Beverly Hills, CA · $2,401 in drug and device payments (2025) · Telehealth · (310) 652-9162
Dr. Stefan Unterhalter, M.D.
Beverly Hills, CA · $831 in drug and device payments (2025) · Telehealth · (310) 274-2722
Dr. Victor Gura, MD
Beverly Hills, CA · $167 in drug and device payments (2025) · Telehealth · (310) 550-6240
Dr. Carl Schulze, MD
Burbank, CA · No drug or device payments recorded (2025) · Telehealth · (818) 843-9020
Dr. Erik Sitker, MD
Burbank, CA · $143 in drug and device payments (2025) · Telehealth · (818) 848-5595
Dr. Henry Nebeker, MD
Burbank, CA · No drug or device payments recorded (2025) · (818) 848-5595
Dr. John Arcia, MD
Burbank, CA · $168 in drug and device payments (2025) · (818) 848-5595
Dr. Kristine Sarmosyan, M.D.
Burbank, CA · $219 in drug and device payments (2025) · Telehealth · (818) 843-9020
Dr. Mark Weissman, M.D.
Burbank, CA · No drug or device payments recorded (2025) · (818) 295-3379

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

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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 Nephrology in California? Get featured.