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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. Vivian Nguyen, MD
Westminster, CA · $83 in drug and device payments (2025) · (714) 248-9558
Dr. Vu Le, M.D.
Westminster, CA · No drug or device payments recorded (2025) · (714) 531-9515
Dr. Vuong Nguyen, M.D.
Westminster, CA · $1,902 in drug and device payments (2025) · (714) 467-4321
Dr. Amrick Sandhu, MD
West Sacramento, CA · No drug or device payments recorded (2025) · (713) 256-1440
Dr. Keith Hopkins, M.D.
West Sacramento, CA · $1,944 in drug and device payments (2025) · (916) 454-2345
Dr. Kenneth Low, M.D.
West Sacramento, CA · No drug or device payments recorded (2025) · (855) 354-2242
Dr. Nancy Ekeke, M.D.
West Sacramento, CA · No drug or device payments recorded (2025) · (916) 454-2345
Dr. Nusrat Uddin Tanni, MD
West Sacramento, CA · No drug or device payments recorded (2025) · (916) 454-2345
Dr. Rodney Faucett, DO
West Sacramento, CA · $155 in drug and device payments (2025) · (530) 865-5544
Dr. Sharina Macapagal, MD
West Sacramento, CA · $39 in drug and device payments (2025) · (916) 454-2345
Dr. Tanvi Ghonasgi, MD
West Sacramento, CA · No drug or device payments recorded (2025) · (916) 403-2900
Dr. Alija Ali, D.O.
Whittier, CA · No drug or device payments recorded (2025) · (562) 906-7766
Dr. Anas Abu-khader, MD
Whittier, CA · No drug or device payments recorded (2025) · (562) 698-0811
Dr. Arash Sherbaf, DO
Whittier, CA · $88 in drug and device payments (2025) · (562) 698-0811
Dr. Bashir Shaw, MD
Whittier, CA · No drug or device payments recorded (2025) · (562) 698-9747
Dr. Benjamin Thonar, MD
Whittier, CA · No drug or device payments recorded (2025) · (562) 698-0811
Dr. Bharat Patel, M.D.
Whittier, CA · No drug or device payments recorded (2025) · (562) 947-8478
Dr. Charles Hu, D.O.
Whittier, CA · $607 in drug and device payments (2025) · (562) 698-0811
Dr. Cheryl Rachel Espiritu
Whittier, CA · No drug or device payments recorded (2025) · (310) 938-6519
Dr. Daksha Mehta, M.D.
Whittier, CA · $53 in drug and device payments (2025) · Telehealth · (562) 789-5470
Dr. D Cotton, MD
Whittier, CA · $21 in drug and device payments (2025) · (562) 698-9779
Dr. Gang Li, MD
Whittier, CA · No drug or device payments recorded (2025) · (562) 698-0811
Dr. George Pang, M.D.
Whittier, CA · No drug or device payments recorded (2025) · (562) 693-8258
Dr. Helen Hanna, M.D.
Whittier, CA · $40 in drug and device payments (2025) · (562) 698-0811
Dr. Henry Masters, MD
Whittier, CA · No drug or device payments recorded (2025) · (562) 693-1595
Dr. Hiren Patel, MD
Whittier, CA · No drug or device payments recorded (2025) · (562) 698-0811
Dr. James Kyle, MD
Whittier, CA · No drug or device payments recorded (2025) · (562) 789-5401
Dr. Jeffrey Chang, DO
Whittier, CA · No drug or device payments recorded (2025) · (562) 698-0811
Dr. Jerry Huang, MD
Whittier, CA · $122 in drug and device payments (2025) · (562) 698-0811
Dr. Jesus Rozel Villanueva, MD
Whittier, CA · No drug or device payments recorded (2025) · (562) 698-0811
Dr. Joseph Malhis, DO
Whittier, CA · No drug or device payments recorded (2025) · (562) 698-0811
Dr. Juan Montes, M.D.
Whittier, CA · $1,072 in drug and device payments (2025) · Telehealth · (562) 908-4355
Dr. Julie Borba, M.D.
Whittier, CA · No drug or device payments recorded (2025) · (310) 698-0811
Dr. Kesheng Wu, MD
Whittier, CA · $100 in drug and device payments (2025) · (562) 696-5088
Dr. Kunal Thaker
Whittier, CA · $160 in drug and device payments (2025) · (562) 698-0811
Dr. Maria Kokkinides, DO
Whittier, CA · $232 in drug and device payments (2025) · (562) 698-0811
Dr. Marian Jalil, M D
Whittier, CA · $332 in drug and device payments (2025) · (562) 945-7671
Dr. Mina Jamalleh Abu Gosh, M.D.
Whittier, CA · No drug or device payments recorded (2025) · Telehealth · (562) 789-5420
Dr. Monica Kim, MD
Whittier, CA · No drug or device payments recorded (2025) · (562) 789-5401
Dr. Mukesh Shah, M.D.
Whittier, CA · No drug or device payments recorded (2025) · Telehealth · (562) 789-5470
Dr. Nikunjkumar Savaliya, MD
Whittier, CA · No drug or device payments recorded (2025) · (562) 698-0811
Dr. Norman Rapp, M.D.
Whittier, CA · No drug or device payments recorded (2025) · (562) 698-0945
Dr. Patrick Deligero, M.D.
Whittier, CA · $51 in drug and device payments (2025) · (562) 696-1104
Dr. Phyu Huang, MD
Whittier, CA · No drug or device payments recorded (2025) · (562) 698-0811
Dr. Pooja Vora, DO
Whittier, CA · $47 in drug and device payments (2025) · (562) 698-0811
Dr. Rajnish Jandial, M.D.
Whittier, CA · No drug or device payments recorded (2025) · (562) 698-0811
Dr. Rami Horani, MD
Whittier, CA · No drug or device payments recorded (2025) · Telehealth · (562) 698-0811
Dr. Roshel Graham, M.D.
Whittier, CA · No drug or device payments recorded (2025) · (562) 947-7754
Dr. Ryan Parto, MD
Whittier, CA · No drug or device payments recorded (2025) · (562) 698-0811
Dr. Samia Faiz, M.D.
Whittier, CA · No drug or device payments recorded (2025) · (562) 696-1104

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.