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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. Denise Lee, D.O.
San Francisco, CA · $19 in drug and device payments (2025) · (831) 484-7713
Dr. Dennis Diokno, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-9182
Dr. Dennis Wong, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-2961
Dr. Denzel Mccray, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-1528
Dr. Derald Seid, D.O
San Francisco, CA · No drug or device payments recorded (2025) · (415) 221-1901
Dr. Derek Blechinger, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-4414
Dr. Derek Kerr, MD
San Francisco, CA · $24 in drug and device payments (2025) · (415) 759-2300
Dr. Derek Nguyen, MD
San Francisco, CA · $368 in drug and device payments (2025) · Telehealth · (415) 600-5400
Dr. Derrina Wu, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 563-8686
Dr. Desiree Arretz, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 641-6996
Dr. Desmond Wilson, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 212-8356
Dr. Devanshi Dove
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 379-2900
Dr. Devin Oller, MD
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 353-7900
Dr. Devin Shen, MD
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 353-7900
Dr. Dhruv Verma, M.D.
San Francisco, CA · $99 in drug and device payments (2025) · (415) 833-9182
Dr. Diana Coupard, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 600-0811
Dr. Diana Funk, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-1000
Dr. Diana Hilbert, M.D.
San Francisco, CA · $954 in drug and device payments (2025) · Telehealth · (415) 752-0100
Dr. Diana Partida, MD
San Francisco, CA · $14 in drug and device payments (2025) · (415) 353-7900
Dr. Diane Havlir, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-4082
Dr. Dipti Padmalayam, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 674-5200
Dr. Doan Khong, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 441-4424
Dr. Dobri Kiprov, MD., P.C.
San Francisco, CA · $156 in drug and device payments (2025) · (415) 923-3646
Dr. Dolly Nam, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 600-3458
Dr. Dolores Shoback, MD
San Francisco, CA · $17,504 in drug and device payments (2025) · Telehealth · (415) 353-2350
Dr. Donald Bruce, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (831) 915-2979
Dr. Donald Ganem, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-9362
Dr. Donald Zumwalt
San Francisco, CA · No drug or device payments recorded (2025) · (925) 634-9704
Dr. Donna Leet, MD
San Francisco, CA · $398 in drug and device payments (2025) · (415) 502-4444
Dr. Don Ng, MD
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 353-4624
Dr. Doreen Gluckin, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-2000
Dr. Doris Purcell, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 402-0266
Dr. Dorothy Hui-jia Tan, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 600-6000
Dr. Douglas Bauer, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-4624
Dr. Douglas Price-hanson, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 355-7475
Dr. Dwight Bissell, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-2318
Dr. Dylan Pillai, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-9363
Dr. Dzovag Minassian, M.D, MPH
San Francisco, CA · No drug or device payments recorded (2025) · (415) 317-3586
Dr. Edgar Pierluissi, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-8317
Dr. Edward Chow, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 677-2388
Dr. Edward Ko, MD
San Francisco, CA · $3,113 in drug and device payments (2025) · (415) 956-9823
Dr. Edward Sickles, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 885-7414
Dr. Edwin Coe, MD
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (925) 634-9704
Dr. Edwin Hassid, M.D.
San Francisco, CA · $43 in drug and device payments (2025) · Telehealth · (415) 379-2980
Dr. Edwin Yuen, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 585-7771
Dr. Ekene Ojukwu, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-4082
Dr. Elad Ziv, MD
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 353-7300
Dr. Elaine Toy, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 640-7537
Dr. Eleanor Schwarz, MD
San Francisco, CA · No drug or device payments recorded (2025) · (628) 206-8494
Dr. Elena Torello, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-2000

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.