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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. Shine Win, M.D
Modesto, CA · No drug or device payments recorded (2025) · (209) 569-7408
Dr. Shruthi Kooturu, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 576-3525
Dr. Shruti Agarwal, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 722-4842
Dr. Simran Bains
Modesto, CA · No drug or device payments recorded (2025) · (209) 569-7408
Dr. Suhail Rahhal, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 576-3525
Dr. Sujay Dayal
Modesto, CA · No drug or device payments recorded (2025) · (209) 735-5000
Dr. Sunita Gaba, M.D.
Modesto, CA · No drug or device payments recorded (2025) · Telehealth · (916) 708-8038
Dr. Suzanne Meyer, M.D.
Modesto, CA · No drug or device payments recorded (2025) · (209) 558-5312
Dr. Swe Than, M.D.,PH.D
Modesto, CA · No drug or device payments recorded (2025) · Telehealth · (209) 550-4702
Dr. Tejasvi Sunkara, M.D
Modesto, CA · No drug or device payments recorded (2025) · (209) 569-7408
Dr. Tri Pham, M.D.
Modesto, CA · $157 in drug and device payments (2025) · (209) 527-1870
Dr. Tushar Modi, M.D.
Modesto, CA · $331 in drug and device payments (2025) · Telehealth · (209) 529-9600
Dr. Upinder Rohewal, M.D.
Modesto, CA · $156 in drug and device payments (2025) · (209) 576-3525
Dr. Veronica David, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 521-6097
Dr. Victoria Yeh, M.D.
Modesto, CA · $120 in drug and device payments (2025) · (209) 576-3525
Dr. Victor Vo, DO
Modesto, CA · $20 in drug and device payments (2025) · (209) 524-1211
Dr. Weizheng Jiang, MD
Modesto, CA · No drug or device payments recorded (2025) · Telehealth · (866) 682-4842
Dr. William Bishop, M.D.
Modesto, CA · No drug or device payments recorded (2025) · (209) 557-6200
Dr. Win Myo, M.D
Modesto, CA · No drug or device payments recorded (2025) · (209) 735-4130
Dr. Xiaohui Tan, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 557-6209
Dr. Yan Li
Modesto, CA · $170 in drug and device payments (2025) · (209) 579-5628
Dr. Ying Liu, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 576-3525
Dr. Youhana Jacobs, MD
Modesto, CA · No drug or device payments recorded (2025) · Telehealth · (209) 524-1211
Dr. Zev Garbuz, MD
Modesto, CA · No drug or device payments recorded (2025) · (209) 735-5000
Dr. Olatokunbo Ayoolaarchie, M.D.
Mojave, CA · No drug or device payments recorded (2025) · (661) 998-9385
Dr. Cheng Yeh, MD
Monrovia, CA · No drug or device payments recorded (2025) · (626) 821-8770
Dr. David Comings, M.D.
Monrovia, CA · No drug or device payments recorded (2025) · (626) 622-4978
Dr. Elizabeth Iskander, M.D.
Monrovia, CA · No drug or device payments recorded (2025) · Telehealth · (626) 358-0269
Dr. Karen Kim, MD
Monrovia, CA · No drug or device payments recorded (2025) · (626) 358-4862
Dr. Mika Ohtomo, M.D.
Monrovia, CA · No drug or device payments recorded (2025) · (626) 357-6922
Dr. Nandar Swe, MD
Monrovia, CA · $49 in drug and device payments (2025) · (626) 358-0269
Dr. Ali Salem, M.D.
Montclair, CA · $753 in drug and device payments (2025) · Telehealth · (909) 626-1205
Dr. Atif Qadeer, MD
Montclair, CA · $321 in drug and device payments (2025) · Telehealth · (909) 626-1205
Dr. Dion Kencana, MD
Montclair, CA · No drug or device payments recorded (2025) · (909) 626-1205
Dr. George Moran, MD
Montclair, CA · $107 in drug and device payments (2025) · (909) 626-1205
Dr. Jose Santiago, M.D.
Montclair, CA · $145 in drug and device payments (2025) · (909) 626-1205
Dr. Khanh Duong, MD
Montclair, CA · $32 in drug and device payments (2025) · (909) 255-0199
Dr. Kiandokht Partovi, M.D.
Montclair, CA · $17 in drug and device payments (2025) · (559) 691-9730
Dr. Mohammed Al-khayyat, M.D.
Montclair, CA · No drug or device payments recorded (2025) · (909) 621-0009
Dr. Nicole Sims, D.O.
Montclair, CA · No drug or device payments recorded (2025) · (909) 626-1205
Dr. Sadia Khan, MD
Montclair, CA · $30 in drug and device payments (2025) · Telehealth · (909) 398-0497
Dr. Tha Sok, DO
Montclair, CA · No drug or device payments recorded (2025) · (909) 626-1205
Dr. Timothy Wu, MD
Montclair, CA · $282 in drug and device payments (2025) · (909) 731-2715
Dr. Akbar Attary, M.D.
Montebello, CA · No drug or device payments recorded (2025) · (323) 767-5141
Dr. Alexander Cheng, M.D.
Montebello, CA · $335 in drug and device payments (2025) · (323) 721-0690
Dr. Angelina Espinoza-lopez, MD
Montebello, CA · $117 in drug and device payments (2025) · (323) 720-1144
Dr. Ebrahim Sajedi, MD
Montebello, CA · $833 in drug and device payments (2025) · (323) 726-0533
Dr. Elisa Park
Montebello, CA · $31 in drug and device payments (2025) · Telehealth · (323) 726-3868
Dr. Jackson Ma, M.D.
Montebello, CA · $330 in drug and device payments (2025) · (323) 528-1565
Dr. Jagdishchandr Parikh, M.D.
Montebello, CA · No drug or device payments recorded (2025) · (562) 667-6648

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.