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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. Bari Levinson, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Bryn Duffy, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 306-1560
Dr. Carolyn Shore, M.D.
San Rafael, CA · No drug or device payments recorded (2025) · (415) 499-6841
Dr. Claudia Levine, MD
San Rafael, CA · No drug or device payments recorded (2025) · Telehealth · (888) 663-6331
Dr. Craig Lindquist, M.D., PH.D.
San Rafael, CA · No drug or device payments recorded (2025) · (415) 473-7377
Dr. Daniel Maloney, M.D.
San Rafael, CA · No drug or device payments recorded (2025) · (510) 625-6262
Dr. David Fankushen, M.D.
San Rafael, CA · No drug or device payments recorded (2025) · (415) 457-8182
Dr. Diana Suh, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Elif Tokcan - Talegon, MD
San Rafael, CA · No drug or device payments recorded (2025) · Telehealth · (415) 444-4743
Dr. Ellen Rosenthal, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 473-7377
Dr. Gerard Notario
San Rafael, CA · No drug or device payments recorded (2025) · (773) 415-4288
Dr. Harish Veerapalli
San Rafael, CA · $54 in drug and device payments (2025) · (415) 444-2000
Dr. Inna Sheinson, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Isabella Danel, M.D.
San Rafael, CA · No drug or device payments recorded (2025) · (202) 320-1345
Dr. Jane Lindsay, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-4885
Dr. Jeffrey Harris, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Jill Dunton, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Joan Pont, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 482-6886
Dr. John Deane, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Jonathan Freudman, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 456-1652
Dr. Joseph Habis, M.D.
San Rafael, CA · $639 in drug and device payments (2025) · Telehealth · (415) 492-3333
Dr. Karin Kerk, M.D
San Rafael, CA · No drug or device payments recorded (2025) · (415) 925-8895
Dr. Kevin Yee, M.D.
San Rafael, CA · No drug or device payments recorded (2025) · (415) 366-3835
Dr. Keyvan Pourmehr, MD
San Rafael, CA · No drug or device payments recorded (2025) · Telehealth · (415) 444-2000
Dr. Krantikiran Baral, MD
San Rafael, CA · No drug or device payments recorded (2025) · (484) 755-8791
Dr. Lynette Mclamb, M.D.
San Rafael, CA · No drug or device payments recorded (2025) · (415) 482-6825
Dr. Madeline Miller, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Marc Gelman, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 482-6890
Dr. Maria Theresa Paz-lum, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 492-3333
Dr. Marie Jo Geha, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 492-3333
Dr. Michael Mason, MD
San Rafael, CA · No drug or device payments recorded (2025) · Telehealth · (415) 444-2000
Dr. Natalya Greyz-yusupov, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Noah Mischka Gerken, M.D.
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Patricia Bauman, M.D.
San Rafael, CA · No drug or device payments recorded (2025) · Telehealth · (415) 472-5733
Dr. Raymond Brow, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Raymund Damian, MD
San Rafael, CA · No drug or device payments recorded (2025) · Telehealth · (415) 444-2000
Dr. Rhett Molloy
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Robert Gelber, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 473-6890
Dr. Ruth Holly, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Ryan Lum, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Ryan Matson, M.D.
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Stephen Loo, DO
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Stephen Welter, M.D.
San Rafael, CA · No drug or device payments recorded (2025) · (415) 492-2410
Dr. Steven Killpack, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 461-4675
Dr. Tarik Alagha, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Teresa Caron, MD
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Williamson Le
San Rafael, CA · No drug or device payments recorded (2025) · (415) 444-2000
Dr. Yasmin Nibbe, MD
San Rafael, CA · No drug or device payments recorded (2025) · (888) 663-6331
Dr. Anahita Shahabi
San Ramon, CA · No drug or device payments recorded (2025) · (925) 275-9200
Dr. Aruna Somani, MMD
San Ramon, CA · No drug or device payments recorded (2025) · (925) 786-1439

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.