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 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. Tricia Charles-cowan, D.O.Hemet, CA · $223 in drug and device payments (2025) · Telehealth ·
(951) 652-3558 Dr. Edward Serros, MDHighland, CA · No drug or device payments recorded (2025) ·
(909) 882-0702 Dr. Hai Phan, MDHighland, CA · No drug or device payments recorded (2025) ·
(909) 883-9283 Dr. Hatem Ali, M.D.Highland, CA · $2,674 in drug and device payments (2025) ·
(909) 882-0702 Dr. Hiep Le, M.D.Highland, CA · No drug or device payments recorded (2025) ·
(909) 882-0702 Dr. Hoa Vu, MDHighland, CA · No drug or device payments recorded (2025) ·
(909) 381-3900 Dr. Klemens Huynh, M.D.Highland, CA · $2,488 in drug and device payments (2025) ·
(909) 882-0702 Dr. Mark Asef, M.D.Highland, CA · $506 in drug and device payments (2025) ·
(909) 882-0702 Dr. Oliver Le, MDHighland, CA · $1,845 in drug and device payments (2025) ·
(909) 882-0702 Dr. Mohammad Al Hasan, MDHollister, CA · $283 in drug and device payments (2025) · Telehealth ·
(831) 638-0212 Dr. Pierre Espenan, MDHuntington Park, CA · $549 in drug and device payments (2025) ·
(323) 589-6681 Dr. Masoud Afshar, M.D.Imperial, CA · $1,449 in drug and device payments (2025) · Telehealth ·
(442) 283-5049 Dr. Narendra Chandrashekar, M.D.Indio, CA · $224 in drug and device payments (2025) · Telehealth ·
(760) 347-0707 Dr. Christopher Woehrstein, M.D.Inglewood, CA · No drug or device payments recorded (2025) ·
(310) 674-8600 Dr. Jabir Sharif, M.D.Inglewood, CA · No drug or device payments recorded (2025) ·
(310) 419-4616 Dr. Jack Rubin, M.D.Inglewood, CA · $638 in drug and device payments (2025) ·
(310) 671-0488 Dr. Michael Healy, M.D.Inglewood, CA · $475 in drug and device payments (2025) ·
(310) 674-8600 Dr. Olu Oredugba, MDInglewood, CA · $406 in drug and device payments (2025) ·
(310) 671-3148 Dr. Randall Maxey, MD PHDInglewood, CA · $68 in drug and device payments (2025) · Telehealth ·
(310) 680-1810 Dr. Stella Feld, M.D.Inglewood, CA · No drug or device payments recorded (2025) · Telehealth ·
(310) 674-8600 Dr. Zahra Tabassian, MDInglewood, CA · $503 in drug and device payments (2025) ·
(310) 671-2420 Dr. Jacob Ahdoot, MDIrvine, CA · $2,208 in drug and device payments (2025) ·
(949) 753-8882 Dr. Oliver RossIrvine, CA · No drug or device payments recorded (2025) · Telehealth ·
(949) 932-5000 Dr. Wei Ling Lau, M.D.Irvine, CA · $26 in drug and device payments (2025) · Telehealth ·
(949) 824-8600 Dr. Cuong Ly, M.D.Laguna Hills, CA · No drug or device payments recorded (2025) · Telehealth ·
(949) 707-1059 Dr. Hadi Mansoury, M.D.Laguna Hills, CA · $129 in drug and device payments (2025) ·
(949) 396-1389 Dr. Jason Pang, M.D.Laguna Hills, CA · $82 in drug and device payments (2025) · Telehealth ·
(949) 770-1122 Dr. Nathaniel Ho, M.D.Laguna Hills, CA · No drug or device payments recorded (2025) · Telehealth ·
(949) 707-1059 Dr. Richard Glassock, M.D.Laguna Niguel, CA · $31,786 in drug and device payments (2025) ·
(949) 388-8885 Dr. Andrew King, M.D.La Jolla, CA · $156 in drug and device payments (2025) · Telehealth ·
(858) 554-9765 Dr. Anushya Jeyabalan, M.D.La Jolla, CA · $64 in drug and device payments (2025) ·
(858) 554-9765 Dr. Clyde Beck, Jr., MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 231-1124 Dr. Dena Rifkin, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(617) 699-8969 Dr. Dianne Mckay, M.D.La Jolla, CA · $2,114 in drug and device payments (2025) · Telehealth ·
(858) 784-9716 Dr. Dylan Steer, M.D.La Jolla, CA · $45 in drug and device payments (2025) · Telehealth ·
(858) 558-8150 Dr. James Rice, MDLa Jolla, CA · $315 in drug and device payments (2025) · Telehealth ·
(858) 554-4310 Dr. Karo Torosian, D.OLa Jolla, CA · $45 in drug and device payments (2025) · Telehealth ·
(619) 260-7220 Dr. Kimberly Harper, M.D.La Jolla, CA · $17 in drug and device payments (2025) · Telehealth ·
(858) 554-9765 Dr. Mark Boiskin, M.D.La Jolla, CA · $249 in drug and device payments (2025) · Telehealth ·
(858) 558-8150 Dr. Melanie Farrell, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 558-8150 Dr. Peter Friend, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 453-9460 Dr. Pranav Garimella, M.D.La Jolla, CA · $1,269 in drug and device payments (2025) · Telehealth ·
(617) 636-8425 Dr. Yogita Lakhera, M.D.La Jolla, CA · $2 in drug and device payments (2025) · Telehealth ·
(858) 558-8150 Dr. Zhabiz Solhjou, M.D.La Jolla, CA · $42 in drug and device payments (2025) · Telehealth ·
(858) 554-9765 Dr. Mohamad Moutaz Almawaldi, MDLakeport, CA · No drug or device payments recorded (2025) ·
(707) 263-4766 Dr. Adarsh Daswani, M.D.Lakewood, CA · No drug or device payments recorded (2025) ·
(562) 630-7279 Dr. Alex Hsu, MDLakewood, CA · No drug or device payments recorded (2025) ·
(562) 630-7279 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.
- Chronic kidney disease
- Kidney stones
- Dialysis care
- High blood pressure
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.
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