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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. Xipu Wu, MD
Rowland Heights, CA · $698 in drug and device payments (2025) · (626) 912-4147
Dr. Yongqing Feng, M.D.
Rowland Heights, CA · $118 in drug and device payments (2025) · (419) 357-7442
Dr. Zune Liu, MD
Rowland Heights, CA · $2,136 in drug and device payments (2025) · (626) 964-1120
Dr. Jin Hee Kim, M.D.
Rsm, CA · $235 in drug and device payments (2025) · Telehealth · (213) 700-3257
Dr. Aaron Miller
Sacramento, CA · $18 in drug and device payments (2025) · Telehealth · (916) 734-5846
Dr. Adam Greenberg, MD
Sacramento, CA · $75 in drug and device payments (2025) · (916) 874-9670
Dr. Adel Agaiby, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 733-3777
Dr. Adele Mitchell, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 688-2000
Dr. Adel Ibrahim
Sacramento, CA · No drug or device payments recorded (2025) · Telehealth · (916) 454-2345
Dr. Adriana Martinez
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-2737
Dr. Adrian Racela, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-2737
Dr. Adrienne Atencio, MD
Sacramento, CA · $122 in drug and device payments (2025) · (916) 734-7506
Dr. Afsaneh Khalili, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 575-8000
Dr. Agnieszka Witkowski, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-7080
Dr. Ahmad Shahzad, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · Telehealth · (253) 435-3100
Dr. Ahmed Hasson, MD
Sacramento, CA · $429 in drug and device payments (2025) · Telehealth · (925) 685-4224
Dr. Aishwarya Yenepalli
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-7777
Dr. Aleksander Skarzynski, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 688-2000
Dr. Alexa Becerra-almendarez, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 743-2737
Dr. Alicia Gonzalez-flores
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-2737
Dr. Allan Siefkin, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-1166
Dr. Allen Tong, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · Telehealth · (916) 733-3777
Dr. Amanda Kamali, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 874-9227
Dr. Amanda Panh
Sacramento, CA · $109 in drug and device payments (2025) · (916) 734-2737
Dr. Amisha Singh, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-2737
Dr. Amy Lei, M.D.
Sacramento, CA · $23 in drug and device payments (2025) · (916) 734-7080
Dr. Amy Sage, MD, MPP
Sacramento, CA · No drug or device payments recorded (2025) · Telehealth · (916) 734-2737
Dr. Amy Wolf, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-7080
Dr. Analiy Ortiz, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-2737
Dr. Anant Lodhia, M.D.
Sacramento, CA · $135 in drug and device payments (2025) · (916) 436-9870
Dr. Anastasiya Haponyuk, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-2737
Dr. Andrea Belko, MD
Sacramento, CA · No drug or device payments recorded (2025) · Telehealth · (916) 688-2000
Dr. Andrea Broka, MD
Sacramento, CA · $636 in drug and device payments (2025) · (916) 734-3774
Dr. Andrea Louise Capcap, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-2011
Dr. Andrew Factor, M.D.
Sacramento, CA · $120 in drug and device payments (2025) · (916) 733-5098
Dr. Andrew Tak, MD
Sacramento, CA · $381 in drug and device payments (2025) · (916) 646-4583
Dr. Angela Bassal, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-2737
Dr. Angel Desai, M.D., MPH
Sacramento, CA · No drug or device payments recorded (2025) · (916) 443-3299
Dr. Anita Singh
Sacramento, CA · $140 in drug and device payments (2025) · (916) 734-7587
Dr. Anjali Chanana Gupta, M.D.
Sacramento, CA · $870 in drug and device payments (2025) · Telehealth · (916) 973-5734
Dr. Anna Dahov, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-7506
Dr. Ann Gerhardt, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 457-3466
Dr. Annie Yu, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-3774
Dr. Anthony Bhe, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-7506
Dr. Antonio Balatbat, M. D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 733-3333
Dr. Apoorva Kommidi, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 688-2000
Dr. Apoorva Raju, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 454-2345
Dr. Apurva Chaturvedi, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-2011
Dr. Arash Nassim Yazd, M.D.
Sacramento, CA · $31 in drug and device payments (2025) · Telehealth · (916) 575-8000
Dr. Asadullah Awan
Sacramento, CA · No drug or device payments recorded (2025) · Telehealth · (916) 546-5320

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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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.