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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. Jennie Orland, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-5830
Dr. Jennifer Babik, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-8317
Dr. Jennifer Beachey, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (925) 634-9704
Dr. Jennifer Chang, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-2777
Dr. Jennifer Flood, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-5438
Dr. Jennifer Lin, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-5015
Dr. Jenny Espinoza, MD
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 221-4810
Dr. Jenny-viva Collisson, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 830-4744
Dr. Jerad Landeros, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 600-6000
Dr. Jeremy Bancroft Brown, MD, PHD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-1528
Dr. Jeric Jacob
San Francisco, CA · No drug or device payments recorded (2025) · (415) 221-4810
Dr. Jerome Jew, M.D.
San Francisco, CA · $40 in drug and device payments (2025) · (415) 982-4011
Dr. Jerry Xiao, MD, PHD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-1528
Dr. Jesse Abelson, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 502-4107
Dr. Jesse Dohemann, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 923-3179
Dr. Jesse Sun, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 531-9047
Dr. Jesse Turner
San Francisco, CA · No drug or device payments recorded (2025) · (423) 914-3825
Dr. Jessica Beaman, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (320) 200-4492
Dr. Jessica Bloome, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-2400
Dr. Jessica Chow, MD
San Francisco, CA · $38 in drug and device payments (2025) · Telehealth · (415) 600-5400
Dr. Jessica Dong, MD
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 476-1529
Dr. Jessica Erickson
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 353-7900
Dr. Jessica Glassman, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 742-5858
Dr. Jessica Haberer, M.D.
San Francisco, CA · $10,168 in drug and device payments (2025) · (415) 514-3320
Dr. Jessica Lapasia, M.D.
San Francisco, CA · $132 in drug and device payments (2025) · (415) 204-5073
Dr. Jessica Oyugi, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 203-3133
Dr. Jessica Ristau, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 476-4082
Dr. Jessica Wong, MD
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 682-1900
Dr. Jey Chung, M.D.
San Francisco, CA · $10,708 in drug and device payments (2025) · Telehealth · (415) 923-3421
Dr. Jill Einstein, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 600-2402
Dr. Jimee Hwang, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 567-6600
Dr. Jim Savage, MD
San Francisco, CA · $88 in drug and device payments (2025) · Telehealth · (415) 981-1102
Dr. Jin Huang, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-9181
Dr. Joanna Krupp
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-1000
Dr. Joanne Engel, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-7355
Dr. Joanne Jee Yeon Lee
San Francisco, CA · No drug or device payments recorded (2025) · (415) 600-6000
Dr. Joan Saxton, MD F A C P
San Francisco, CA · No drug or device payments recorded (2025) · (415) 771-1578
Dr. Jody Baron, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-9362
Dr. Jody Lawrence, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-4082
Dr. Joel Barish, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 543-1304
Dr. Joel Chasis, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-2741
Dr. Joel Klompus, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 923-3179
Dr. Joel Lopez, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 566-1000
Dr. Joel Simon, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 750-2093
Dr. John Akin, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 750-2120
Dr. John Balmes, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-5200
Dr. John Dzundza, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 443-3459
Dr. John Fahy, MD
San Francisco, CA · $1,008 in drug and device payments (2025) · (415) 353-2961
Dr. John Fullerton, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 202-9990
Dr. John Hall, MD
San Francisco, CA · No drug or device payments recorded (2025) · (650) 821-5601

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.