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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. Sakinah Gray
Baldwin Park, CA · $609 in drug and device payments (2025) · (626) 337-0676
Dr. Sandra Koyama, MD
Baldwin Park, CA · $69 in drug and device payments (2025) · (626) 851-1011
Dr. Shabnam Mohammadi, MD
Baldwin Park, CA · No drug or device payments recorded (2025) · (626) 851-1011
Dr. Shih Fan Chen, DO
Baldwin Park, CA · No drug or device payments recorded (2025) · (626) 851-5324
Dr. Steven Park, M.D.
Baldwin Park, CA · No drug or device payments recorded (2025) · (626) 851-5328
Dr. Susan Hua, MD
Baldwin Park, CA · No drug or device payments recorded (2025) · Telehealth · (626) 851-1011
Dr. Thao Dang, MD
Baldwin Park, CA · $238 in drug and device payments (2025) · (626) 851-1011
Dr. Tin Tran, MD
Baldwin Park, CA · $17 in drug and device payments (2025) · (626) 851-1011
Dr. Vicki Quan, D.O.
Baldwin Park, CA · No drug or device payments recorded (2025) · (626) 851-1011
Dr. Victoria Chen, M.D.
Baldwin Park, CA · $24 in drug and device payments (2025) · Telehealth · (626) 962-5141
Dr. Young Lee, MD
Baldwin Park, CA · $26 in drug and device payments (2025) · (626) 851-1011
Dr. Jose Limon, MD
Banning, CA · $20 in drug and device payments (2025) · (951) 845-6993
Dr. Joshua Choi, M.D.
Banning, CA · $34 in drug and device payments (2025) · (951) 845-0313
Dr. Kristen Lew, M.D
Banning, CA · $361 in drug and device payments (2025) · (951) 845-0313
Dr. Michael Lee, MD
Banning, CA · $39 in drug and device payments (2025) · (951) 849-1543
Dr. Muhammad Akhtar, M.D.
Banning, CA · No drug or device payments recorded (2025) · (951) 849-2526
Dr. Nawazish Qazi, M.D.
Banning, CA · $14 in drug and device payments (2025) · Telehealth · (951) 845-8856
Dr. Scott Ditch
Banning, CA · No drug or device payments recorded (2025) · (951) 845-0313
Dr. Alberta Olegario, MD
Barstow, CA · No drug or device payments recorded (2025) · (760) 256-3568
Dr. Dipak Vora, M.D.
Barstow, CA · No drug or device payments recorded (2025) · (760) 256-1422
Dr. Poopal Sivananda, MD
Barstow, CA · No drug or device payments recorded (2025) · (760) 953-8059
Dr. Ravindra Gautam, M.D.
Barstow, CA · $288 in drug and device payments (2025) · Telehealth · (760) 256-1004
Dr. Tak Chow, M.D.
Barstow, CA · No drug or device payments recorded (2025) · (760) 252-2168
Dr. Jonathan Mori, M.D.
Beale Afb, CA · No drug or device payments recorded (2025) · Telehealth · (530) 634-4662
Dr. Justin Peterson, M.D.
Beale Afb, CA · No drug or device payments recorded (2025) · (530) 634-4662
Dr. Lijah Vann Gardner, DO
Beale Afb, CA · No drug or device payments recorded (2025) · (530) 634-2941
Dr. Michael Shaub, M.D.
Beale Afb, CA · No drug or device payments recorded (2025) · (530) 634-4662
Dr. Nathaniel Ford, MD, MPH
Beale Afb, CA · No drug or device payments recorded (2025) · (153) 063-4294
Dr. Almira Yusi-lenn, MD
Beaumont, CA · No drug or device payments recorded (2025) · (626) 807-8321
Dr. Christer Joreteg, MD
Beaumont, CA · No drug or device payments recorded (2025) · (951) 845-0313
Dr. Devadas Moses, MD, FACP, DR.PH.
Beaumont, CA · $130 in drug and device payments (2025) · Telehealth · (951) 845-2342
Dr. Lowell Sparks, MD
Beaumont, CA · No drug or device payments recorded (2025) · (951) 845-6440
Dr. Omar Bashir, D.O.
Beaumont, CA · $660 in drug and device payments (2025) · Telehealth · (909) 312-0085
Dr. Sherif Khalil, MD
Beaumont, CA · $19 in drug and device payments (2025) · (909) 312-0085
Dr. Adhemar Uyuni, M.D
Bell, CA · No drug or device payments recorded (2025) · (323) 771-1433
Dr. Zia Hashemi, M.D.
Bell, CA · No drug or device payments recorded (2025) · (323) 563-2222
Dr. Albert Low, MD
Bellflower, CA · No drug or device payments recorded (2025) · Telehealth · (562) 461-3000
Dr. Alem Asrat, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Ali Farvid, M.D.
Bellflower, CA · $22 in drug and device payments (2025) · (562) 461-6712
Dr. Allen Alaverdian, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Andargachew Shawel, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Andrew Dea, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Anna Kalman, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. An Nguyen, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Arianna Moreno, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Asha Bisht, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Basil Abdelkarim, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Calvin Hong, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Chandrabhan Kewalramani, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Chantal Le-pham, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000

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.