HealthcareDiscovery.AI / Doctors / California / Internal Medicine

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. Gustin Ho, M.D.
San Francisco, CA · $1,015 in drug and device payments (2025) · (415) 982-4100
Dr. Haarika Srinath
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 600-6000
Dr. Hana Lim, MD
San Francisco, CA · No drug or device payments recorded (2025) · (628) 206-4867
Dr. Han-cheng Chen
San Francisco, CA · No drug or device payments recorded (2025) · (628) 206-4777
Dr. Hanh Nguyen, MD
San Francisco, CA · $41 in drug and device payments (2025) · (415) 833-2000
Dr. Hannah Archibald, MD
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 600-2402
Dr. Hannah Wilkerson, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 600-6000
Dr. Hans Yu, D.O.
San Francisco, CA · $992 in drug and device payments (2025) · (415) 759-3777
Dr. Harlan South, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 316-5510
Dr. Harlan Watkins, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 474-7900
Dr. Harlington Hanna, MD
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (888) 663-6331
Dr. Harold Gerber, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 347-1492
Dr. Harry Cheung, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-1000
Dr. Harry Hollander, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-2119
Dr. Harvey Edelman, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 362-6038
Dr. Harvey Tucker, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 517-8772
Dr. Heather Whelan, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-6759
Dr. Hedda Orkin, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 377-0837
Dr. Hedieh Matinrad, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (628) 206-8000
Dr. Helen Jackson, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-2000
Dr. Hellen Kim, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 359-1880
Dr. Hemalee Patel, D.O.
San Francisco, CA · $81 in drug and device payments (2025) · Telehealth · (415) 526-5658
Dr. Henry Crevensten, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 221-4810
Dr. Henry Jones
San Francisco, CA · No drug or device payments recorded (2025) · (650) 739-3765
Dr. Henry Kahn, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-1683
Dr. Henry Lee, MD
San Francisco, CA · No drug or device payments recorded (2025) · (201) 862-8104
Dr. Heralio Serrano, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 487-7500
Dr. Herbert Goodman, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 921-3141
Dr. Herbert Toy, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 391-9686
Dr. He Wang, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 600-3954
Dr. Hilary Childers
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 476-1528
Dr. Hilary Seligman, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-8317
Dr. Hilda Dudum
San Francisco, CA · No drug or device payments recorded (2025) · (415) 647-8600
Dr. Hillary Kunins, MD, MPH
San Francisco, CA · No drug or device payments recorded (2025) · (628) 754-9528
Dr. Hnin Pyie Phyoe Aung, MD
San Francisco, CA · No drug or device payments recorded (2025) · (888) 500-1886
Dr. Ho Anh, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (617) 466-9269
Dr. Holly Deng, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 833-2200
Dr. Homer Boushey, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-2961
Dr. Howard Graves, MD PHD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-5753
Dr. Hsiao Lieu, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-3503
Dr. Hsingming Liou, MD
San Francisco, CA · $3,151 in drug and device payments (2025) · (415) 641-6650
Dr. Hsung Liang, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 567-6582
Dr. Huat Chye Lim, MD
San Francisco, CA · $23 in drug and device payments (2025) · Telehealth · (415) 476-1000
Dr. Hugh Rienhoff, MD
San Francisco, CA · $363 in drug and device payments (2025) · (415) 759-2300
Dr. Hugo Cheng, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-4624
Dr. Hyman Scott, M.D.
San Francisco, CA · $1,246 in drug and device payments (2025) · (415) 476-1528
Dr. Ian Galbreath, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-1000
Dr. Ida Sim, MD
San Francisco, CA · No drug or device payments recorded (2025) · Telehealth · (415) 353-4624
Dr. Ida Solis, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-2000
Dr. Ilana Garcia-grossman
San Francisco, CA · $150 in drug and device payments (2025) · (415) 476-1528

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.