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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. Alexis Hoen, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (213) 977-1165
Dr. Alexis Leyba, MD
Los Angeles, CA · $748 in drug and device payments (2025) · (323) 409-7565
Dr. Alex Kokaly, MD, MHSA
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 206-4083
Dr. Ali Amini, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (213) 741-9727
Dr. Alice Agzarian, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 794-4212
Dr. Alice Chen, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 267-9643
Dr. Alice Peng, M.D.
Los Angeles, CA · $153 in drug and device payments (2025) · (310) 423-2641
Dr. Alicia Chang, M.D.
Los Angeles, CA · $124 in drug and device payments (2025) · (213) 745-0846
Dr. Alicia Morehead-gee, MD
Los Angeles, CA · $22,254 in drug and device payments (2025) · (310) 267-9643
Dr. Ali Enayati, M.D., M.P.H.
Los Angeles, CA · $1,157 in drug and device payments (2025) · Telehealth · (310) 551-1711
Dr. Alisa Chalmers
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (213) 988-8380
Dr. Alissa Detz, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 794-9809
Dr. Ali Towfigh, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 478-3711
Dr. Ali Vakili, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 226-6571
Dr. Aliya Khan
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (310) 206-6232
Dr. Allan Chen, MD
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (323) 857-3303
Dr. Allan Wang, M.D.
Los Angeles, CA · $45 in drug and device payments (2025) · (213) 483-3987
Dr. Allen Funnye, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (909) 919-9296
Dr. Allison Bearden, MD, MPH
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 226-3691
Dr. Allison Diamant, MD
Los Angeles, CA · $19 in drug and device payments (2025) · Telehealth · (310) 206-6232
Dr. Allison Leung, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (310) 208-7777
Dr. Amanda Grantham, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 391-7281
Dr. Amanda Mazza, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (800) 954-8000
Dr. Amarish Pradhan, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 668-4515
Dr. Ambeshie Yesus, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (626) 457-5839
Dr. Amine Rakab, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 857-2000
Dr. Amit Kothari, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 478-3711
Dr. Amit Levi
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 267-9646
Dr. Amos Acoff, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (818) 838-4587
Dr. Amy Lin, MD
Los Angeles, CA · $25 in drug and device payments (2025) · (310) 206-7662
Dr. Anand Upadhyaya, MD
Los Angeles, CA · $1,276 in drug and device payments (2025) · (424) 522-7100
Dr. Andrea Ruman, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 825-4073
Dr. Andrew Bressler, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 857-2000
Dr. Andrew Chuang, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (310) 248-7070
Dr. Andrew Feda, MD
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (310) 500-2045
Dr. Andrew Hong
Los Angeles, CA · $120 in drug and device payments (2025) · (310) 206-6232
Dr. Andrew Kim, MD
Los Angeles, CA · $194 in drug and device payments (2025) · Telehealth · (213) 382-7022
Dr. Andrew Kim, M.D.
Los Angeles, CA · $332 in drug and device payments (2025) · (213) 483-5940
Dr. Andrew Pham, MD
Los Angeles, CA · $184 in drug and device payments (2025) · (323) 340-7269
Dr. Andrew Ren, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 783-3810
Dr. Andrew Silver, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 360-6780
Dr. Angela Ruman, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 825-4073
Dr. Angela Seard, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 503-8039
Dr. Angela Sellers
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 226-2170
Dr. Angeli Agatep, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 857-2000
Dr. Angelina Badillo, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 783-4011
Dr. Angelo De La Rosa, MD
Los Angeles, CA · $905 in drug and device payments (2025) · (424) 522-7100
Dr. Anh Smith, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 783-4585
Dr. Anh Thu Kieu, MD
Los Angeles, CA · $19 in drug and device payments (2025) · Telehealth · (310) 794-9718
Dr. Ani Galfayan, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 783-4011

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.