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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. Holly Steindel, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 857-2000
Dr. Homayoon Khanlou, MD
Los Angeles, CA · $21 in drug and device payments (2025) · Telehealth · (323) 397-0897
Dr. Hovhannes Kurghinyan, MD
Los Angeles, CA · $316 in drug and device payments (2025) · (323) 187-1632
Dr. Howard Hodis, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 442-5100
Dr. Hrishikesh Belani, MD, MPH
Los Angeles, CA · No drug or device payments recorded (2025) · (747) 210-4990
Dr. Hsin Hsiang Tsai
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 825-9111
Dr. Huan Nguyen, M.D.
Los Angeles, CA · $31 in drug and device payments (2025) · (213) 253-2677
Dr. Huda Khaleel
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 442-5100
Dr. Huey-jer Su, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 293-7171
Dr. Hui Huang, MD
Los Angeles, CA · $150 in drug and device payments (2025) · (323) 897-6000
Dr. Hwei Ju Yu, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 783-4011
Dr. Hyang Eun Sohn, M.D.
Los Angeles, CA · $858 in drug and device payments (2025) · (213) 739-8822
Dr. Hyman Milstein, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 857-2000
Dr. Ian Roy, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 363-1154
Dr. Ilan Bernstein, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (800) 954-8000
Dr. Illya Wilkerson, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 783-7582
Dr. Imad El Asmar, MD
Los Angeles, CA · $940 in drug and device payments (2025) · (323) 660-5624
Dr. Imani Gardner, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 783-4011
Dr. Imanuel Khalili, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (424) 355-0301
Dr. Injib Kim, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 857-2000
Dr. Ioana Popescu, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 206-6232
Dr. Iris Lee, D.O.
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 783-1432
Dr. Isaac Abusleme, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 783-4011
Dr. Isabella Lai, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (424) 274-1550
Dr. Ishaque Syed, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 409-3147
Dr. Ismael Gestopa, NP
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (323) 908-4200
Dr. Ivy Shi
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 825-9111
Dr. Jacob Quinton, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 206-6232
Dr. Jacob Tsadok, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 445-3551
Dr. Jacqueline Bowles, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 789-5610
Dr. Jacqueline Cervantes, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 409-2324
Dr. Jacqueline Munnings
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 846-4312
Dr. Jacquelyn Nguyen, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (714) 307-5029
Dr. Jade Zamorano, MD
Los Angeles, CA · $473 in drug and device payments (2025) · (310) 825-7375
Dr. Jae Chu, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 757-1853
Dr. Jaejoon Lee
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 226-2170
Dr. Jae Kim
Los Angeles, CA · No drug or device payments recorded (2025) · (424) 338-8000
Dr. Jae Yoo, MD
Los Angeles, CA · $238 in drug and device payments (2025) · (323) 731-2001
Dr. Jaime Betancourt, M.D.
Los Angeles, CA · $54,156 in drug and device payments (2025) · (310) 268-3838
Dr. James Evans, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 783-4011
Dr. James Hahn, M.D.
Los Angeles, CA · $1,078 in drug and device payments (2025) · (323) 735-1111
Dr. James Hill, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (424) 285-0188
Dr. James Jung, MD
Los Angeles, CA · $1,043 in drug and device payments (2025) · (323) 766-1057
Dr. James Kim, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (510) 387-3005
Dr. James Korb, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 857-2000
Dr. James Moore, M.D.
Los Angeles, CA · $24 in drug and device payments (2025) · (323) 226-7556
Dr. James Pacino, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (323) 442-5100
Dr. James Yang, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (077) 934-9566
Dr. Janet Kim, MD
Los Angeles, CA · $274 in drug and device payments (2025) · (213) 388-7828
Dr. Janet Pregler, MD
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (310) 206-6232

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.