HealthcareDiscovery.AI / Doctors / California / Internal Medicine

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. Gurpreet Dhugga, MD
Fairfield, CA · No drug or device payments recorded (2025) · (707) 864-1056
Dr. Hellen Vasquez, MD
Fairfield, CA · No drug or device payments recorded (2025) · (707) 646-5000
Dr. Irwin Barr, MD
Fairfield, CA · No drug or device payments recorded (2025) · (707) 427-4000
Dr. Isaac Swartzman, MD
Fairfield, CA · No drug or device payments recorded (2025) · (707) 423-3000
Dr. James Horodyski, M.D.
Fairfield, CA · No drug or device payments recorded (2025) · (707) 429-3600
Dr. Jane Hewitt, MD
Fairfield, CA · No drug or device payments recorded (2025) · (707) 427-4000
Dr. Jason Whitmore, MD
Fairfield, CA · No drug or device payments recorded (2025) · Telehealth · (707) 427-4000
Dr. Jayesh Patel, MD
Fairfield, CA · $29 in drug and device payments (2025) · Telehealth · (707) 423-2506
Dr. Jeannette Peterson, M.D.
Fairfield, CA · No drug or device payments recorded (2025) · (707) 422-0543
Dr. Josefina Arenas, M.D
Fairfield, CA · No drug or device payments recorded (2025) · (707) 422-0900
Dr. Larissa Chartrand, M.D.
Fairfield, CA · $177 in drug and device payments (2025) · Telehealth · (707) 646-5500
Dr. Levon Tchakmakjian, M.D.
Fairfield, CA · No drug or device payments recorded (2025) · (707) 646-5500
Dr. Maria Conley, MD
Fairfield, CA · $16 in drug and device payments (2025) · (707) 423-3000
Dr. Matthew Johnson, MD
Fairfield, CA · $163 in drug and device payments (2025) · (707) 423-2506
Dr. Minerva Saqui, MD
Fairfield, CA · No drug or device payments recorded (2025) · (707) 427-4000
Dr. Myo Chang, MD
Fairfield, CA · $16 in drug and device payments (2025) · (707) 437-1817
Dr. Nail Amro, M.D.
Fairfield, CA · No drug or device payments recorded (2025) · (707) 429-3600
Dr. Paarth Shah, MD
Fairfield, CA · $367 in drug and device payments (2025) · Telehealth · (707) 646-5500
Dr. Paresh Pravin, MD
Fairfield, CA · $284 in drug and device payments (2025) · (707) 646-5080
Dr. Pushkar Pandey, M.D.
Fairfield, CA · $109 in drug and device payments (2025) · (707) 429-3600
Dr. Rajmeet Mann, MD
Fairfield, CA · No drug or device payments recorded (2025) · Telehealth · (707) 646-5500
Dr. Richard Fleming, M.D.
Fairfield, CA · No drug or device payments recorded (2025) · (707) 863-4501
Dr. Rory King, DO
Fairfield, CA · No drug or device payments recorded (2025) · (636) 432-9347
Dr. Salimah Boghani, M.D
Fairfield, CA · No drug or device payments recorded (2025) · (707) 646-5000
Dr. Savita Nallapa, M.D
Fairfield, CA · No drug or device payments recorded (2025) · (707) 437-1818
Dr. Seema Rizvi, DO
Fairfield, CA · No drug or device payments recorded (2025) · Telehealth · (707) 427-4000
Dr. Shulan Ding, MD
Fairfield, CA · No drug or device payments recorded (2025) · (707) 427-4000
Dr. Son Nguyen, M.D.
Fairfield, CA · No drug or device payments recorded (2025) · (707) 423-9484
Dr. Sumera Ahmed, MD
Fairfield, CA · $419 in drug and device payments (2025) · (707) 553-5938
Dr. Svetlana Gutierrez, M.D.
Fairfield, CA · No drug or device payments recorded (2025) · (707) 646-5080
Dr. Tarik Phillip, MD
Fairfield, CA · No drug or device payments recorded (2025) · (707) 254-1774
Dr. Teresa Whitley, M.D.
Fairfield, CA · No drug or device payments recorded (2025) · Telehealth · (707) 646-4100
Dr. Thuy-tien Le, MD, MPH
Fairfield, CA · $29 in drug and device payments (2025) · (707) 432-2777
Dr. Warren Joseph San Diego, MD
Fairfield, CA · No drug or device payments recorded (2025) · (707) 646-5080
Dr. Yashna Lamsal, DO
Fairfield, CA · No drug or device payments recorded (2025) · (707) 646-5500
Dr. Yoseph Elala
Fairfield, CA · No drug or device payments recorded (2025) · (866) 282-7905
Dr. Allen Priest, MD
Fair Oaks, CA · $64 in drug and device payments (2025) · (916) 967-8201
Dr. Dheeraj Kamra, MD
Fair Oaks, CA · $628 in drug and device payments (2025) · Telehealth · (916) 966-8500
Dr. Harkesh Sandhu, M.D.
Fair Oaks, CA · No drug or device payments recorded (2025) · (916) 241-9844
Dr. Harliv Hans, M.D.
Fair Oaks, CA · No drug or device payments recorded (2025) · (916) 277-8881
Dr. Hwei-shin Huang, MD
Fair Oaks, CA · No drug or device payments recorded (2025) · (916) 536-1133
Dr. Jaswinder Bajwa, M.D
Fair Oaks, CA · No drug or device payments recorded (2025) · (619) 432-2592
Dr. Ramnik Josan, M.D.
Fair Oaks, CA · No drug or device payments recorded (2025) · (916) 241-9844
Dr. Richard Lockmiller, M.D.
Fair Oaks, CA · No drug or device payments recorded (2025) · (916) 966-6287
Dr. Xin-nong Li, MD
Fair Oaks, CA · $619 in drug and device payments (2025) · (916) 961-3084
Dr. Zarlasht Fakiri, D.O
Fair Oaks, CA · $234 in drug and device payments (2025) · Telehealth · (916) 241-9844
Dr. Eunice Rhee, D.O.
Fallbrook, CA · $770 in drug and device payments (2025) · Telehealth · (760) 728-9560
Dr. Goran Cvijanovic, MD
Fallbrook, CA · $15 in drug and device payments (2025) · (760) 451-4720
Dr. Lidia Everett, MD
Fallbrook, CA · No drug or device payments recorded (2025) · (760) 728-5372
Dr. Peter Strutz, MD
Fallbrook, CA · $51 in drug and device payments (2025) · (760) 728-8489

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

Related

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.