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. Thomas Romano, M.D.
Los Angeles, CA · $450 in drug and device payments (2025) · (323) 987-1362
Dr. Veena Ranganath, MD
Los Angeles, CA · $433 in drug and device payments (2025) · Telehealth · (310) 825-6301
Dr. Victoria Gevorgyan, MD
Los Angeles, CA · $390 in drug and device payments (2025) · Telehealth · (323) 442-5710
Dr. Victor Tran
Los Angeles, CA · $473 in drug and device payments (2025) · Telehealth · (310) 659-7878
Dr. Wagdy Kades, M.D.
Los Angeles, CA · $7,148 in drug and device payments (2025) · (213) 484-5397
Dr. William Stohl, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 442-1946
Dr. Yaqoot Khan, D.O
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (310) 825-2448
Dr. Donald Silcox, M.D.
Los Gatos, CA · No drug or device payments recorded (2025) · (408) 356-3178
Dr. Mary Fainstat
Los Gatos, CA · No drug or device payments recorded (2025) · (408) 866-7519
Dr. Yasmeen Khalid, M.D.
Madera, CA · $2,219 in drug and device payments (2025) · Telehealth · (559) 675-5006
Dr. Anupam Chahal, MD
Manteca, CA · $5,114 in drug and device payments (2025) · Telehealth · (209) 284-4561
Dr. Karen Reardon, MD
Manteca, CA · $264 in drug and device payments (2025) · (209) 284-4561
Dr. Thomas Jamison, MD
Martinez, CA · No drug or device payments recorded (2025) · (925) 372-1000
Dr. Anhvu Nguyen, M.D.
Mather, CA · No drug or device payments recorded (2025) · (916) 843-7132
Dr. Reena Heyer, M.D.
Mather, CA · No drug or device payments recorded (2025) · (800) 382-8387
Dr. Samuel Mcalpine, M.D.
Mather, CA · $19 in drug and device payments (2025) · (916) 552-2970
Dr. Cathy Riker, MD
Menlo Park, CA · $70 in drug and device payments (2025) · Telehealth · (650) 498-6500
Dr. Thomas Okarma, PH.D., M.D.
Menlo Park, CA · No drug or device payments recorded (2025) · (650) 473-7785
Dr. Meghal Parikh, MD
Merced, CA · $252 in drug and device payments (2025) · Telehealth · (209) 812-1444
Dr. Hitasha Singh, M.D.
Mission Hills, CA · No drug or device payments recorded (2025) · Telehealth · (818) 837-5559
Dr. Joseph Mehrabi, MD
Mission Hills, CA · $1,817 in drug and device payments (2025) · (818) 838-4500
Dr. Paul Sussman, MD.
Mission Hills, CA · No drug or device payments recorded (2025) · (818) 837-5765
Dr. Rosa Artola, D.O.
Mission Hills, CA · $1,325 in drug and device payments (2025) · (818) 827-9950
Dr. Catherine Driver, M.D.
Mission Viejo, CA · $3,087 in drug and device payments (2025) · Telehealth · (949) 347-6044
Dr. Fatemeh Jafari Farshami, M.D.
Mission Viejo, CA · $2,278 in drug and device payments (2025) · Telehealth · (949) 582-5430
Dr. Hernan Castro-rueda, M.D.
Mission Viejo, CA · $4,721 in drug and device payments (2025) · Telehealth · (949) 364-7246
Dr. Jaya Philipose, M.D.
Mission Viejo, CA · $4,938 in drug and device payments (2025) · Telehealth · (949) 364-7246
Dr. Paul Wehrle, M.D.
Mission Viejo, CA · No drug or device payments recorded (2025) · (949) 364-6000
Dr. Simranjit Singh, MD
Mission Viejo, CA · $2,510 in drug and device payments (2025) · Telehealth · (949) 347-6044
Dr. Willilam Shiel, M.D.
Mission Viejo, CA · $2,079 in drug and device payments (2025) · (949) 364-7246
Dr. Crisostomo Baliog, MD
Modesto, CA · $701 in drug and device payments (2025) · (209) 550-4755
Dr. Farah Mahmood, M.D.
Modesto, CA · $119 in drug and device payments (2025) · Telehealth · (209) 521-6097
Dr. Hajra Tily, M.D
Modesto, CA · $3,413 in drug and device payments (2025) · Telehealth · (209) 521-6097
Dr. Kanwal Khanna, M.D.
Modesto, CA · $367 in drug and device payments (2025) · Telehealth · (209) 524-2041
Dr. Michelle Chu, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 577-3388
Dr. Paul Schunke, M.D.
Modesto, CA · No drug or device payments recorded (2025) · (209) 524-1211
Dr. Thein Swe, MD
Modesto, CA · $3,389 in drug and device payments (2025) · Telehealth · (209) 550-4730
Dr. Win Lim, MD
Modesto, CA · No drug or device payments recorded (2025) · Telehealth · (209) 557-1000
Dr. Kathleen Kolstad, MD
Montecito, CA · $125 in drug and device payments (2025) · Telehealth · (805) 565-0023
Dr. Nicholas Stienstra, M.D.
Monterey, CA · No drug or device payments recorded (2025) · Telehealth · (831) 333-3040
Dr. Li Yang, M.D.
Monterey Park, CA · $68 in drug and device payments (2025) · (323) 796-0170
Dr. Michael Kwark
Monterey Park, CA · No drug or device payments recorded (2025) · (626) 458-8401
Dr. Ramachandran Srinivasan, M.D.
Monterey Park, CA · $98 in drug and device payments (2025) · (626) 458-8401
Dr. Winnie Pang, M.D.
Monterey Park, CA · No drug or device payments recorded (2025) · (626) 571-1176
Dr. Thomas Abel, MD
Monte Sereno, CA · No drug or device payments recorded (2025) · Telehealth · (408) 656-9944
Dr. Heather Gillespie, M.D.
Moreno Valley, CA · $421 in drug and device payments (2025) · Telehealth · (951) 486-4000
Dr. Sana Afroz, MD
Moreno Valley, CA · $30 in drug and device payments (2025) · Telehealth · (951) 486-4000
Dr. Daniel Jo, M.D.
Mountain View, CA · $2,430 in drug and device payments (2025) · Telehealth · (650) 695-6421
Dr. Jeffrey Brown, MD
Mountain View, CA · No drug or device payments recorded (2025) · (650) 934-7808
Dr. Jennifer Johnson, M.D.
Mountain View, CA · $41 in drug and device payments (2025) · Telehealth · (650) 934-7050

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.