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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. Daniel Gretler, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 826-3546
Dr. Daniel Kahler, D.O.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 641-8600
Dr. Daniel Lesky, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 292-3400
Dr. Danielle Walker, MD
San Francisco, CA · $58 in drug and device payments (2025) · Telehealth · (415) 600-0940
Dr. Daniel Null, MD
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 353-7300
Dr. Daniel O'neill, MD
San Francisco, CA · $1,609 in drug and device payments (2025) · (415) 292-3400
Dr. Daniel Wlodarczyk, MD
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 476-4082
Dr. Danilo Reed, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (408) 941-5109
Dr. Dan Kalshan, MD
San Francisco, CA · $1,098 in drug and device payments (2025) · Telehealth · (415) 433-7000
Dr. Dan Ladabaum, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (925) 634-9704
Dr. Darby Clayson, MD
San Francisco, CA · No drug or device payments recorded (2025) · (702) 453-3799
Dr. Darrel Robbins, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-2000
Dr. Darren Vo, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 391-9686
Dr. David Andino-nieves, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 668-1000
Dr. David Arboleda, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-7931
Dr. David Bangsberg, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-5438
Dr. David Bowden
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (800) 743-7707
Dr. David Brailer, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 694-5666
Dr. David Erle, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-8314
Dr. David Gardner, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-2350
Dr. David Gendreau, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-2000
Dr. David Go, DO
San Francisco, CA · $125 in drug and device payments (2025) · (415) 600-3954
Dr. David Goldschmid, MD
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (650) 888-2163
Dr. David Goodson
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-7900
Dr. David Jacobson, MD
San Francisco, CA · No drug or device payments recorded (2025) · (925) 634-9704
Dr. David Jerome Malit, D.O.
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 668-1000
Dr. David Knapp
San Francisco, CA · No drug or device payments recorded (2025) · (415) 710-5721
Dr. David Leeds, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 600-3954
Dr. David Nagle, MD
San Francisco, CA · $139 in drug and device payments (2025) · Telehealth · (617) 643-0596
Dr. David Ofman, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 885-2274
Dr. David Pearce, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-4617
Dr. David Popiel, MD, MPH
San Francisco, CA · No drug or device payments recorded (2025) · (833) 334-6393
Dr. David Rapko, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 750-2129
Dr. David Shu, M.D.
San Francisco, CA · $1,961 in drug and device payments (2025) · Telehealth · (415) 750-0182
Dr. David Warren, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 487-5638
Dr. David Waters, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-3503
Dr. David Werdegar, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 750-4180
Dr. Davy Wu
San Francisco, CA · No drug or device payments recorded (2025) · (415) 647-8600
Dr. Dawn Cortland, MD
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 346-8931
Dr. Dawn Daniel, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (650) 814-4749
Dr. Dawn Malter, M.D., PH.D.
San Francisco, CA · $80 in drug and device payments (2025) · (415) 353-4308
Dr. Dean Schillinger, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-8317
Dr. Dean Sheppard, MD
San Francisco, CA · $15,200 in drug and device payments (2025) · (415) 206-8314
Dr. Deborah Grady, DEBORAH GRADY, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 750-2093
Dr. Deborah Lindes, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 386-5388
Dr. Debra Keller, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 355-7400
Dr. Debra Osman, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 674-2600
Dr. Dena Bravata, M.D., M.S.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 923-3025
Dr. Denise Connor, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-1528
Dr. Denise Gonzalez, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-6075

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

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 Internal Medicine in California? Get featured.