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Internal Medicine Doctors in California

Data updated monthly · Last refresh October 2026

17,715 Internal Medicine providers practice in California, including 4,245 (24%) 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.

17,715providers
4,245telehealth
Los Angelestop city

Internal Medicine by city in California

Choose a city to see providers there.

Internal Medicine in Los Angeles1,417 providers
Internal Medicine in San Francisco1,322 providers
Internal Medicine in San Diego970 providers
Internal Medicine in Sacramento602 providers
Internal Medicine in Oakland434 providers
Internal Medicine in San Jose433 providers
Internal Medicine in Stanford383 providers
Internal Medicine in Fresno339 providers
Internal Medicine in Torrance230 providers
Internal Medicine in Long Beach225 providers
Internal Medicine in Bakersfield210 providers
Internal Medicine in Loma Linda209 providers
Internal Medicine in Palo Alto189 providers
Internal Medicine in Anaheim188 providers
Internal Medicine in Orange188 providers
Internal Medicine in Riverside188 providers
Internal Medicine in Walnut Creek184 providers
Internal Medicine in Santa Monica170 providers
Internal Medicine in La Jolla161 providers
Internal Medicine in Roseville159 providers
Internal Medicine in Irvine155 providers
Internal Medicine in Beverly Hills152 providers
Internal Medicine in Santa Clara142 providers
Internal Medicine in Pasadena138 providers

Internal Medicine 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. Trevor Hinshaw, MD
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 600-2402
Dr. Trevor Jensen
San Francisco, CA · No drug or device payments recorded (2025) · (415) 297-1201
Dr. Trevor Lee, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-4082
Dr. Triveni Defries, M.D, MPH
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (628) 206-8000
Dr. Tuan Duong, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 775-5700
Dr. Tung Nguyen, MD
San Francisco, CA · $33 in drug and device payments (2025) · (415) 353-4624
Dr. Tyrone Johnson, MD
San Francisco, CA · $128 in drug and device payments (2025) · (415) 476-1000
Dr. Urmimala Sarkar, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-8317
Dr. Valerie Garrett, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 531-9047
Dr. Vanessa Grubbs, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-4624
Dr. Vanessa Thompson, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-5164
Dr. V Courtney Broaddus, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-8314
Dr. Venkata Chavali, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-6000
Dr. Vennela Avula
San Francisco, CA · No drug or device payments recorded (2025) · (410) 955-5000
Dr. Vernon Giang, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (925) 634-9704
Dr. Veronica Manzo, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-1000
Dr. Vicky Young, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 759-4568
Dr. Victor Hsu, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-9182
Dr. Victor Huie, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 677-2488
Dr. Victoria Behrman, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 759-4552
Dr. Victor Laluz, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (888) 663-6331
Dr. Vijay Bhandari, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-8494
Dr. Vino Palli, MD
San Francisco, CA · $404 in drug and device payments (2025) · (773) 220-8466
Dr. Vipul Kumar, MD/PHD
San Francisco, CA · No drug or device payments recorded (2025) · (628) 206-2407
Dr. Virginia Cafaro, MD
San Francisco, CA · $2,822 in drug and device payments (2025) · Telehealth · (415) 551-9758
Dr. Waldo Dittmar, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 600-5760
Dr. Warren Choy, MD
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 833-2000
Dr. Warren Gold, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-3961
Dr. Wayne Chung, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 835-1279
Dr. Wayne Tran, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1692
Dr. Wei Rao, M.D.
San Francisco, CA · $2,775 in drug and device payments (2025) · Telehealth · (415) 221-0177
Dr. Wendy Reeve, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 600-3503
Dr. Whittemore Tingley, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-2873
Dr. Wilbur Hillman, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 362-4170
Dr. William Amend, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-3496
Dr. William Andereck, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 923-3025
Dr. William Black, M.D., PH.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 600-0140
Dr. William Cahill, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 554-2727
Dr. William Drew, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 885-7315
Dr. William Greene, MD
San Francisco, CA · No drug or device payments recorded (2025) · (650) 793-1861
Dr. William Grossman, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-4144
Dr. William Huen
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-8494
Dr. William Kavanaugh, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 750-2112
Dr. William Kell, M.D
San Francisco, CA · No drug or device payments recorded (2025) · (415) 668-1000
Dr. William Owen, M.D.
San Francisco, CA · $22 in drug and device payments (2025) · (415) 861-2400
Dr. William Poe
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-1528
Dr. William Smith, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 221-4810
Dr. William Strull, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-2000
Dr. Wilson Ho, MD
San Francisco, CA · $259 in drug and device payments (2025) · (415) 668-1000
Dr. Won Kim, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 885-7276

Conditions Internal Medicine providers in California commonly treat

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

Common questions

How many Internal Medicine providers are in California?

There are 17,715 Internal Medicine providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.

Do Internal Medicine providers in California offer telehealth?

Yes. 4,245 of the 17,715 Internal Medicine providers in California (about 24%) report offering telehealth services in CMS data.

Which cities in California have the most Internal Medicine providers?

Los Angeles (1,417), San Francisco (1,322), San Diego (970) have the highest concentration of Internal Medicine providers in California.

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

5,614 of 17,715 Internal Medicine providers in California (32%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Internal Medicine providers in California treat?

Internal Medicine providers commonly treat high blood pressure, type 2 diabetes, high cholesterol, preventive care, chronic disease management 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 Internal Medicine Doctors in California work in independent practices or large health systems?

Among 10,847 Internal Medicine Doctors in California enrolled in Medicare, 20% bill through a solo or small practice with fewer than 10 clinicians, 12% through a mid-size group of 10 to 99, and 67% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Internal Medicine Doctors in California work at?

According to CMS facility affiliation records, the California hospitals where the most Internal Medicine Doctors hold privileges are Stanford Health Care in Stanford; UCSF Medical Center in San Francisco; Ronald Reagan UCLA Medical Center in Los Angeles.

Related reading on HealthcareDiscovery.AI

Internal Medicine in all 50 states Search all 17,715 in the directory Ask Zach for help choosing

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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 Internal Medicine in California? Get featured.