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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. Fiona Wilson, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-4624
Dr. Firoozeh Parsa Nezhad, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 759-2300
Dr. Flavio Vincenti, M.D.
San Francisco, CA · $74,253 in drug and device payments (2025) · (415) 353-1889
Dr. Fletcher Bell, MD
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 567-6600
Dr. Francesca Chinn, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-2000
Dr. Frances Wong, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 221-0177
Dr. Francis Charlton, M.D.
San Francisco, CA · $692 in drug and device payments (2025) · Telehealth · (415) 585-7880
Dr. Francis Yu, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-2000
Dr. Frank Dumont, MD
San Francisco, CA · No drug or device payments recorded (2025) · (844) 847-8216
Dr. Frank Primus, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (773) 456-3316
Dr. Fred Cohen, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 743-1559
Dr. Frederick Hecht, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-4082
Dr. Frederick Roll, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-8317
Dr. Frederic Whinery, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 923-3540
Dr. Fusheng Wang, M.D.
San Francisco, CA · $152 in drug and device payments (2025) · Telehealth · (415) 982-9688
Dr. Gabriel Chamie, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-8317
Dr. Gabriel Gregoratos, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-2873
Dr. Gabriella Bartos, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (510) 437-8500
Dr. Gabriella Herrera, MD, MPH
San Francisco, CA · No drug or device payments recorded (2025) · (628) 206-8000
Dr. Gagandeep Gill
San Francisco, CA · $146 in drug and device payments (2025) · Telehealth · (415) 750-5942
Dr. Gary Arsham, M.D.
San Francisco, CA · $69 in drug and device payments (2025) · (415) 346-4740
Dr. Gary Chan, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 474-7900
Dr. Gaurav Inamdar
San Francisco, CA · $125 in drug and device payments (2025) · (415) 600-3954
Dr. Gayatri Khanna, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 386-5388
Dr. Geethu Nair, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-7931
Dr. Geetika Mehra
San Francisco, CA · No drug or device payments recorded (2025) · (847) 533-6494
Dr. Gene Kim, M.D.
San Francisco, CA · $1,635 in drug and device payments (2025) · (415) 387-8031
Dr. Gene Lau, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-2000
Dr. Geno Genasci, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 602-0807
Dr. Geoffrey Quinn, M.D.
San Francisco, CA · $77 in drug and device payments (2025) · (415) 668-1147
Dr. George Beatty, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-4082
Dr. George Brooks, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1943
Dr. George Rudy, M.D., PH.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 231-5333
Dr. George Susens, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-2000
Dr. George Yeung, MD
San Francisco, CA · $104 in drug and device payments (2025) · (415) 353-9111
Dr. Gerald Murphy, M.D.
San Francisco, CA · $785 in drug and device payments (2025) · Telehealth · (415) 750-0182
Dr. Gilberto Palacios, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-9182
Dr. Gillian Foley, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 514-1378
Dr. Gina Gregory-burns, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-2000
Dr. Gina Moreno-john, M.D., M.P.H.
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 353-4624
Dr. Gladys Dychiao, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 914-3046
Dr. Gopika Dasari, M.D
San Francisco, CA · $99 in drug and device payments (2025) · (415) 600-5760
Dr. Grace Lin, MD
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 353-4624
Dr. Grant Colfax, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-8317
Dr. Greg Burrell, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 200-2099
Dr. Gregory Zahner, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-1000
Dr. Guido Gores, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 771-4366
Dr. Gurjot Walia, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-9182
Dr. Gurmeet Sran, M.D.
San Francisco, CA · $34 in drug and device payments (2025) · (415) 291-0480
Dr. Gurpreet Dhaliwal, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 221-4810

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.