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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. John Jones, MD
Oakland, CA · No drug or device payments recorded (2025) · (510) 465-6700
Dr. John Murphy, M.D.
Oakland, CA · No drug or device payments recorded (2025) · (510) 535-6300
Dr. Jonathan Gee, M.D.
Oakland, CA · No drug or device payments recorded (2025) · (510) 752-7867
Dr. Jonathan Lee
Oakland, CA · No drug or device payments recorded (2025) · Telehealth · (510) 204-8290
Dr. Jordan Yoder
Oakland, CA · No drug or device payments recorded (2025) · (510) 752-1190
Dr. Joseph Cartwright, MD, MED
Oakland, CA · No drug or device payments recorded (2025) · (510) 567-5700
Dr. Joseph Jordan, MD
Oakland, CA · No drug or device payments recorded (2025) · (510) 752-1000
Dr. Joseph Kim, MD
Oakland, CA · No drug or device payments recorded (2025) · (510) 752-1000
Dr. Joseph Marquis, MD
Oakland, CA · No drug or device payments recorded (2025) · Telehealth · (510) 535-4400
Dr. Joseph Young, MD
Oakland, CA · No drug or device payments recorded (2025) · (510) 752-1000
Dr. Josh Chung, M.D.
Oakland, CA · $41 in drug and device payments (2025) · (510) 752-1933
Dr. Joy Liu
Oakland, CA · No drug or device payments recorded (2025) · (507) 437-4564
Dr. Judith Wofsy, MD
Oakland, CA · No drug or device payments recorded (2025) · (510) 437-4323
Dr. Julia Follette, M.D.
Oakland, CA · No drug or device payments recorded (2025) · (510) 437-4563
Dr. Kaili Zhou, MD
Oakland, CA · No drug or device payments recorded (2025) · (510) 752-1000
Dr. Kalaivani Elango, M.D
Oakland, CA · No drug or device payments recorded (2025) · (510) 752-1000
Dr. Kanika Sharma, M.D.
Oakland, CA · No drug or device payments recorded (2025) · (510) 393-1453
Dr. Kara Durand, MD
Oakland, CA · No drug or device payments recorded (2025) · Telehealth · (510) 752-1000
Dr. Karin Dydell, M.D.
Oakland, CA · No drug or device payments recorded (2025) · (510) 869-6883
Dr. Katherine Chen
Oakland, CA · $1,500 in drug and device payments (2025) · Telehealth · (510) 752-1190
Dr. Katherine Loustaunau
Oakland, CA · No drug or device payments recorded (2025) · (510) 437-4800
Dr. Katherine Mclane, MD
Oakland, CA · No drug or device payments recorded (2025) · (510) 752-1000
Dr. Katherine Yu, DO, MPH
Oakland, CA · $26 in drug and device payments (2025) · Telehealth · (510) 437-5039
Dr. Kathleen Grannan, MD
Oakland, CA · No drug or device payments recorded (2025) · (510) 987-1000
Dr. Kathleen Hicks, M.D.
Oakland, CA · No drug or device payments recorded (2025) · (510) 437-4323
Dr. Keith Barton, M.D.
Oakland, CA · No drug or device payments recorded (2025) · (510) 595-7360
Dr. Kelly Morris, D.O.
Oakland, CA · No drug or device payments recorded (2025) · (510) 437-4800
Dr. Kelly Wong, MD.,
Oakland, CA · No drug or device payments recorded (2025) · Telehealth · (510) 271-4400
Dr. Kenneth Shedd, M.D.
Oakland, CA · No drug or device payments recorded (2025) · (510) 267-7901
Dr. Kevin Chen, M.D.
Oakland, CA · No drug or device payments recorded (2025) · Telehealth · (510) 452-4824
Dr. Kevin Ha
Oakland, CA · No drug or device payments recorded (2025) · (510) 437-5039
Dr. Kevin Nguyen, MD
Oakland, CA · $26 in drug and device payments (2025) · (510) 752-1000
Dr. Khanh-van Yveline Van Anh
Oakland, CA · No drug or device payments recorded (2025) · (510) 752-1000
Dr. Khoa Vu, M.D.
Oakland, CA · No drug or device payments recorded (2025) · (510) 625-5947
Dr. Kimberly Gutowski, MD
Oakland, CA · No drug or device payments recorded (2025) · (510) 437-5039
Dr. Kimberly Hicks, M.D.
Oakland, CA · $20 in drug and device payments (2025) · (510) 595-9880
Dr. Kimberly Reynosa, MD
Oakland, CA · No drug or device payments recorded (2025) · (510) 752-1000
Dr. Kirk Stumpf, MD
Oakland, CA · No drug or device payments recorded (2025) · (510) 752-1000
Dr. Kristen Hoover, M.D.
Oakland, CA · No drug or device payments recorded (2025) · Telehealth · (510) 752-6542
Dr. Krystal Leong
Oakland, CA · No drug or device payments recorded (2025) · (510) 752-1000
Dr. Laszlo Hites, MD
Oakland, CA · No drug or device payments recorded (2025) · (510) 985-7348
Dr. Laura Miller, M.D.
Oakland, CA · No drug or device payments recorded (2025) · (510) 563-4300
Dr. Laura Wedderburn, M.D.
Oakland, CA · $135 in drug and device payments (2025) · Telehealth · (510) 204-8290
Dr. Laura Zhang
Oakland, CA · No drug or device payments recorded (2025) · (510) 869-6883
Dr. Laure Lee, M.D.
Oakland, CA · No drug or device payments recorded (2025) · (707) 427-4025
Dr. Lawrence Schwartz, MD
Oakland, CA · No drug or device payments recorded (2025) · (510) 451-3200
Dr. Leigh Ben-zvy
Oakland, CA · No drug or device payments recorded (2025) · (510) 437-5039
Dr. Leila El-wakil, MD
Oakland, CA · No drug or device payments recorded (2025) · (510) 752-1000
Dr. Leon Li
Oakland, CA · No drug or device payments recorded (2025) · (510) 752-1000
Dr. Leslea Brickner, MD
Oakland, CA · No drug or device payments recorded (2025) · (510) 752-1000

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.