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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. Puri Lorena Pascual, M.D.
La Quinta, CA · No drug or device payments recorded (2025) · Telehealth · (760) 610-7300
Dr. Seyed Hamid Hemmati, MD
La Quinta, CA · No drug or device payments recorded (2025) · (760) 610-7300
Dr. Steven Gorman, M.D.
La Quinta, CA · $293 in drug and device payments (2025) · Telehealth · (760) 564-1886
Dr. Thi Kim Pham, MD
La Quinta, CA · No drug or device payments recorded (2025) · (760) 863-0138
Dr. Alaric Akashi, MD
Larkspur, CA · No drug or device payments recorded (2025) · (415) 448-1500
Dr. Katherine Chick, M.D
Larkspur, CA · No drug or device payments recorded (2025) · (415) 925-0884
Dr. Marvin Freid, M.D.
Larkspur, CA · No drug or device payments recorded (2025) · (415) 924-5890
Dr. Oana Klein, MD
Larkspur, CA · No drug or device payments recorded (2025) · (415) 448-1500
Dr. Robert Doris
Larkspur, CA · No drug or device payments recorded (2025) · Telehealth · (415) 924-1214
Dr. Rosalind Hudson, M.D.
Larkspur, CA · $81 in drug and device payments (2025) · (415) 924-6010
Dr. Willie Tang, MD
Larkspur, CA · No drug or device payments recorded (2025) · Telehealth · (415) 924-1214
Dr. Marissa Wen, MD
Lathrop, CA · No drug or device payments recorded (2025) · (209) 479-8000
Dr. Freddie Ibrahim, M.D.
La Verne, CA · No drug or device payments recorded (2025) · (909) 596-6418
Dr. Latha Achanta, MD MPH
La Verne, CA · No drug or device payments recorded (2025) · (909) 901-3087
Dr. Mara Archambault, MD
La Verne, CA · $25 in drug and device payments (2025) · Telehealth · (909) 593-4531
Dr. Tan Wong, MD
La Verne, CA · $4,100 in drug and device payments (2025) · Telehealth · (909) 596-1941
Dr. Younis Ali, MD
La Verne, CA · No drug or device payments recorded (2025) · (909) 596-4879
Dr. Anoosheh Lolachi, M.D.
Lawndale, CA · No drug or device payments recorded (2025) · (310) 371-9900
Dr. Huy Hoang, M.D.
Lawndale, CA · $1,293 in drug and device payments (2025) · (310) 479-2266
Dr. John Cheung, D.O.
Lawndale, CA · No drug or device payments recorded (2025) · (562) 922-5448
Dr. Clinton Thompson, M.D.
Laytonville, CA · No drug or device payments recorded (2025) · (707) 272-0782
Dr. Amira Sheikh Mohamed, MD
Lemon Grove, CA · No drug or device payments recorded (2025) · (619) 429-3733
Dr. Daniel Gallares, M.D.
Lemon Grove, CA · $243 in drug and device payments (2025) · (619) 515-2550
Dr. James Ripple, M.D.
Lemoore, CA · No drug or device payments recorded (2025) · (559) 998-0889
Dr. Daniel Makieve, M.D.
Lincoln, CA · No drug or device payments recorded (2025) · (916) 408-3773
Dr. George Booker, MD
Lincoln, CA · No drug or device payments recorded (2025) · (916) 784-4000
Dr. Irina Korman Dolomis, M.D.
Lincoln, CA · No drug or device payments recorded (2025) · (916) 543-5473
Dr. Jeffrey Wayne, MD
Lincoln, CA · $814 in drug and device payments (2025) · (916) 434-8230
Dr. Luz Guerrero, MD
Lincoln, CA · No drug or device payments recorded (2025) · (916) 784-4000
Dr. Mark Krawiec, MD
Lincoln, CA · No drug or device payments recorded (2025) · (916) 784-4000
Dr. Ravi Chinthakindi, MD
Lincoln, CA · $637 in drug and device payments (2025) · Telehealth · (916) 434-8800
Dr. Sadaf Najmabadi, MD
Lincoln, CA · $144 in drug and device payments (2025) · (916) 408-3773
Dr. Sarala Ghanapuram, M.D
Lincoln, CA · $640 in drug and device payments (2025) · Telehealth · (916) 434-8800
Dr. Vinutha Raj, M.D.
Lincoln, CA · $46 in drug and device payments (2025) · Telehealth · (916) 408-5915
Dr. Daryl Wilkins, D.O.
Linden, CA · No drug or device payments recorded (2025) · (209) 887-3891
Dr. Charles Garretson, MD
Live Oak, CA · $187 in drug and device payments (2025) · (304) 610-7267
Dr. Andrew Rodgers, MD
Livermore, CA · No drug or device payments recorded (2025) · (925) 243-2600
Dr. Andy Nguyen, MD
Livermore, CA · No drug or device payments recorded (2025) · (925) 243-2600
Dr. Babita Dhapola, MD
Livermore, CA · No drug or device payments recorded (2025) · Telehealth · (925) 243-2600
Dr. Betty Tam, MD
Livermore, CA · No drug or device payments recorded (2025) · Telehealth · (925) 454-4280
Dr. Chandran Arulanandan, MD
Livermore, CA · No drug or device payments recorded (2025) · (925) 243-2600
Dr. Connie Teresi, M.D.
Livermore, CA · No drug or device payments recorded (2025) · (925) 373-4700
Dr. Daniel Combitsis, DO
Livermore, CA · No drug or device payments recorded (2025) · (925) 243-2600
Dr. Ellen Shibata, MD
Livermore, CA · No drug or device payments recorded (2025) · (925) 373-4700
Dr. Gary Peer, MD
Livermore, CA · No drug or device payments recorded (2025) · (925) 447-1330
Dr. Gurmanpal Sandhu
Livermore, CA · No drug or device payments recorded (2025) · Telehealth · (800) 478-8837
Dr. Iftekhar Sareshwala, MD
Livermore, CA · No drug or device payments recorded (2025) · (925) 243-2600
Dr. Irene Rademaker, M.D.
Livermore, CA · No drug or device payments recorded (2025) · (925) 373-4700
Dr. Lyn Lazar, M.D.
Livermore, CA · No drug or device payments recorded (2025) · (925) 373-4700
Dr. Mehvish Mahmood, M.D.
Livermore, CA · No drug or device payments recorded (2025) · (925) 243-2600

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.