HealthcareDiscovery.AI / Doctors / California / Rheumatology

Rheumatologists in California

Data updated monthly · Last refresh October 2026

923 Rheumatology providers practice in California, including 464 (50%) 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.

923providers
464telehealth
Los Angelestop city

Rheumatology by city in California

Choose a city to see providers there.

Rheumatology in Los Angeles94 providers
Rheumatology in San Francisco63 providers
Rheumatology in San Diego42 providers
Rheumatology in Sacramento27 providers
Rheumatology in Stanford25 providers
Rheumatology in Orange20 providers
Rheumatology in Torrance19 providers
Rheumatology in Beverly Hills19 providers
Rheumatology in Santa Monica18 providers
Rheumatology in La Jolla16 providers
Rheumatology in Palo Alto14 providers
Rheumatology in Santa Barbara14 providers
Rheumatology in San Jose12 providers
Rheumatology in Fresno12 providers
Rheumatology in Loma Linda12 providers
Rheumatology in Walnut Creek12 providers
Rheumatology in Riverside11 providers
Rheumatology in Roseville10 providers
Rheumatology in Oakland9 providers
Rheumatology in Whittier9 providers
Rheumatology in Anaheim9 providers
Rheumatology in Mountain View8 providers
Rheumatology in Fremont8 providers
Rheumatology in Burbank8 providers

Rheumatology 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. James Chung, MD
Sylmar, CA · No drug or device payments recorded (2025) · (818) 364-3031
Dr. Primal Kaur, MD, MBA
Sylmar, CA · No drug or device payments recorded (2025) · (818) 364-3205
Dr. Tamara Dahhan, D.O.
Sylmar, CA · No drug or device payments recorded (2025) · Telehealth · (818) 364-3205
Dr. Adam Kreitenberg, M.D.
Tarzana, CA · $196,841 in drug and device payments (2025) · Telehealth · (818) 996-4077
Dr. Albert Katz, M.D.
Tarzana, CA · $2,472 in drug and device payments (2025) · (818) 996-1888
Dr. Boris Ratiner, M.D.
Tarzana, CA · $4,686 in drug and device payments (2025) · Telehealth · (818) 996-4077
Dr. Jenny Oh, M.D.
Tarzana, CA · $3,762 in drug and device payments (2025) · Telehealth · (818) 996-4077
Dr. Purva Chhibar, M.D.
Temecula, CA · No drug or device payments recorded (2025) · Telehealth · (951) 303-1500
Dr. Aelita Khachatrian, MD
Thousand Oaks, CA · $2,314 in drug and device payments (2025) · (951) 278-5590
Dr. Elvira Lindwall, M.D.
Thousand Oaks, CA · $6,389 in drug and device payments (2025) · Telehealth · (805) 370-1965
Dr. Michael Vincent, M.D., PH.D.
Thousand Oaks, CA · No drug or device payments recorded (2025) · (805) 447-9481
Dr. Rachel Mory, MD
Thousand Oaks, CA · No drug or device payments recorded (2025) · (805) 418-3500
Dr. Shariar Cohen-gadol, M.D.
Thousand Oaks, CA · $12,094 in drug and device payments (2025) · Telehealth · (805) 449-8781
Dr. Gregory Bell, MD
Tiburon, CA · $368 in drug and device payments (2025) · (415) 435-6210
Dr. Bett Eng, M.D.
Torrance, CA · $965 in drug and device payments (2025) · Telehealth · (310) 373-0340
Dr. David Klashman, MD
Torrance, CA · $820 in drug and device payments (2025) · Telehealth · (310) 373-0340
Dr. David Oh, M.D.
Torrance, CA · $374 in drug and device payments (2025) · Telehealth · (310) 543-2977
Dr. Dilrukshie Cooray, M.D.
Torrance, CA · $530 in drug and device payments (2025) · Telehealth · (310) 222-5101
Dr. George Karpouzas, M.D.
Torrance, CA · $219 in drug and device payments (2025) · (310) 222-5101
Dr. Gopika Miller, M.D.
Torrance, CA · No drug or device payments recorded (2025) · Telehealth · (310) 222-2409
Dr. Joe Gamboa, MD
Torrance, CA · $403 in drug and device payments (2025) · Telehealth · (310) 257-7205
Dr. Kenneth Nies, M.D.
Torrance, CA · No drug or device payments recorded (2025) · (310) 373-0340
Dr. Marian Kaldas, M.D.
Torrance, CA · No drug or device payments recorded (2025) · Telehealth · (310) 257-0028
Dr. Maryann Kimoto, D.O.
Torrance, CA · No drug or device payments recorded (2025) · Telehealth · (310) 517-8578
Dr. Michael Duffin, M.D.
Torrance, CA · No drug or device payments recorded (2025) · (310) 214-0811
Dr. Michael Liebling, M.D.
Torrance, CA · No drug or device payments recorded (2025) · (310) 222-5101
Dr. Morteza Azimian, M.D.
Torrance, CA · $26 in drug and device payments (2025) · Telehealth · (310) 214-0811
Dr. Oleg Stens, MD
Torrance, CA · $286 in drug and device payments (2025) · (310) 222-2345
Dr. Paul Kim, M.D.
Torrance, CA · $133 in drug and device payments (2025) · Telehealth · (310) 530-1010
Dr. Richard Goldin, M.D.
Torrance, CA · No drug or device payments recorded (2025) · (310) 373-0340
Dr. Steve Aziz, M.D.
Torrance, CA · $20 in drug and device payments (2025) · Telehealth · (310) 214-0811
Dr. Viet Bui, MD, PHD
Torrance, CA · $17 in drug and device payments (2025) · (310) 222-3697
Dr. William Chin, M.D.
Torrance, CA · No drug or device payments recorded (2025) · (310) 354-4209
Dr. Sahdev Saharan, M.D.
Tracy, CA · $5,098 in drug and device payments (2025) · Telehealth · (209) 462-7246
Dr. James Dizmang, M.D.
Travis Afb, CA · No drug or device payments recorded (2025) · (707) 423-7342
Dr. Dan La, MD
Tujunga, CA · $5,096 in drug and device payments (2025) · (818) 265-2250
Dr. Iraj Sabahi, M.D.
Turlock, CA · $2,221 in drug and device payments (2025) · (209) 634-3898
Dr. Robin Dore, MD
Tustin, CA · $181,546 in drug and device payments (2025) · Telehealth · (714) 505-5500
Dr. Roger Kornu, M.D.
Tustin, CA · $157,327 in drug and device payments (2025) · Telehealth · (714) 406-4461
Dr. Anny Wu, D.O.
Ukiah, CA · $594 in drug and device payments (2025) · Telehealth · (707) 463-7378
Dr. Maedeh Veyseh
Union City, CA · $69 in drug and device payments (2025) · Telehealth · (718) 918-3230
Dr. Margaret Li, MD
Union City, CA · $104 in drug and device payments (2025) · Telehealth · (510) 675-2987
Dr. Antony Hou, M.D.
Upland, CA · $1,575 in drug and device payments (2025) · Telehealth · (909) 982-0099
Dr. Ebrahim Sadeghi Najafabadi, M.D.
Upland, CA · $3,736 in drug and device payments (2025) · Telehealth · (909) 932-1122
Dr. Morris Kokhab, M.D.
Upland, CA · No drug or device payments recorded (2025) · (909) 932-1122
Dr. Thang Le, MD
Upland, CA · $1,167 in drug and device payments (2025) · Telehealth · (909) 982-0099
Dr. Melissa Schoenwetter, D.O.
Vacaville, CA · $1,159 in drug and device payments (2025) · Telehealth · (707) 624-8530
Dr. Michelle Sit, MD
Vacaville, CA · $1,458 in drug and device payments (2025) · Telehealth · (707) 624-8532
Dr. Catherine Finney, M.D.
Valencia, CA · No drug or device payments recorded (2025) · (661) 424-8840
Dr. Howard Van Gelder, MD
Valencia, CA · $46 in drug and device payments (2025) · Telehealth · (661) 481-2400

Conditions Rheumatology providers in California commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Rheumatology providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Rheumatology providers are in California?

There are 923 Rheumatology providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.

Do Rheumatology providers in California offer telehealth?

Yes. 464 of the 923 Rheumatology providers in California (about 50%) report offering telehealth services in CMS data.

Which cities in California have the most Rheumatology providers?

Los Angeles (94), San Francisco (63), San Diego (42) have the highest concentration of Rheumatology providers in California.

How many Rheumatology providers in California received drug or device company payments?

520 of 923 Rheumatology providers in California (56%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Rheumatology providers in California treat?

Rheumatology providers commonly treat rheumatoid arthritis, lupus, gout, psoriatic arthritis, fibromyalgia 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 Rheumatologists in California work in independent practices or large health systems?

Among 633 Rheumatologists in California enrolled in Medicare, 27% bill through a solo or small practice with fewer than 10 clinicians, 8% through a mid-size group of 10 to 99, and 65% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Rheumatologists in California work at?

According to CMS facility affiliation records, the California hospitals where the most Rheumatologists hold privileges are Ronald Reagan UCLA Medical Center in Los Angeles; Stanford Health Care in Stanford; Cedars-Sinai Medical Center in Los Angeles.

Rheumatology in all 50 states Search all 923 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 Rheumatology in California? Get featured.