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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. Michael Malamed, M.D.
Tarzana, CA · No drug or device payments recorded (2025) · (818) 908-8048
Dr. Michelle Shukhman, D.O.
Tarzana, CA · No drug or device payments recorded (2025) · Telehealth · (818) 774-3838
Dr. Nathan Alyesh
Tarzana, CA · $35 in drug and device payments (2025) · (818) 881-0800
Dr. Nat Linhardt, MD
Tarzana, CA · No drug or device payments recorded (2025) · (818) 609-9553
Dr. Parvine Rustamova, M.D.
Tarzana, CA · $1,131 in drug and device payments (2025) · (310) 484-9959
Dr. Rajeev Sharma, MD
Tarzana, CA · $138 in drug and device payments (2025) · (310) 423-5252
Dr. Raymond Bailey, MD
Tarzana, CA · $243 in drug and device payments (2025) · (818) 776-2418
Dr. Richard Walter, M.D.
Tarzana, CA · No drug or device payments recorded (2025) · (818) 528-1270
Dr. Ritu Viswanath, MD
Tarzana, CA · No drug or device payments recorded (2025) · (310) 571-5015
Dr. Robert Kayland, M.D.
Tarzana, CA · $47 in drug and device payments (2025) · (818) 525-1410
Dr. Sally Frankl, M.D.
Tarzana, CA · $1,347 in drug and device payments (2025) · Telehealth · (818) 344-2080
Dr. Samuel Elias, M.D.
Tarzana, CA · No drug or device payments recorded (2025) · (818) 774-3838
Dr. Samuel Fink, M.D.
Tarzana, CA · $338 in drug and device payments (2025) · Telehealth · (818) 609-0700
Dr. Seema Bhansali, M.D.
Tarzana, CA · No drug or device payments recorded (2025) · (818) 881-0800
Dr. Shawn Younessi
Tarzana, CA · $875 in drug and device payments (2025) · Telehealth · (818) 654-8111
Dr. Terry Reimann, M.D.
Tarzana, CA · No drug or device payments recorded (2025) · (818) 345-0601
Dr. Ana Reyna, MD
Tehachapi, CA · No drug or device payments recorded (2025) · (661) 822-3519
Dr. Harold Tate, M.D.
Tehachapi, CA · No drug or device payments recorded (2025) · (661) 822-4402
Dr. Irene Sanchez-esparza, MD
Tehachapi, CA · No drug or device payments recorded (2025) · (661) 823-2273
Dr. Karandeep Singh, M.D.
Tehachapi, CA · No drug or device payments recorded (2025) · Telehealth · (661) 822-2530
Dr. Mariana Revelo, MD
Tehachapi, CA · No drug or device payments recorded (2025) · (661) 398-3737
Dr. Michael Vu, D.O.
Tehachapi, CA · No drug or device payments recorded (2025) · (661) 822-4402
Dr. Taiga Inoue, MD, MS
Tehachapi, CA · No drug or device payments recorded (2025) · (661) 823-2273
Dr. Terry Warsaw, M.D.
Tehachapi, CA · No drug or device payments recorded (2025) · (661) 822-5544
Dr. Aaron Goldstein, M.D.
Temecula, CA · $1,403 in drug and device payments (2025) · (951) 331-2397
Dr. Alexandra Pires-menard, MD
Temecula, CA · $102 in drug and device payments (2025) · (951) 600-4337
Dr. Ali Danish, MBBS
Temecula, CA · No drug or device payments recorded (2025) · (916) 600-4337
Dr. Allen Tsiyer, MD
Temecula, CA · No drug or device payments recorded (2025) · (951) 600-4337
Dr. Alyssa Gabrielle Vergara
Temecula, CA · No drug or device payments recorded (2025) · (951) 600-4337
Dr. Armen Mardikian
Temecula, CA · No drug or device payments recorded (2025) · (951) 600-4337
Dr. Assad Qureshi, MD
Temecula, CA · $34 in drug and device payments (2025) · (951) 600-4337
Dr. Brent Kay, M.D.
Temecula, CA · No drug or device payments recorded (2025) · (714) 935-0073
Dr. Brian Quach
Temecula, CA · $148 in drug and device payments (2025) · Telehealth · (951) 600-4337
Dr. Carl Sainten, M.D.
Temecula, CA · No drug or device payments recorded (2025) · (760) 295-6566
Dr. Chanika Assavarittirong, MD
Temecula, CA · $23 in drug and device payments (2025) · (951) 600-4337
Dr. Charles Taft, M.D.
Temecula, CA · No drug or device payments recorded (2025) · (951) 676-4193
Dr. Donald Lee, MD
Temecula, CA · No drug or device payments recorded (2025) · (951) 302-1576
Dr. Douglas Carrasco, M.D.
Temecula, CA · $1,143 in drug and device payments (2025) · Telehealth · (951) 302-4603
Dr. Ebrahim Mohamedy, M.D.
Temecula, CA · No drug or device payments recorded (2025) · (678) 591-9108
Dr. Eduard Babayan, MD
Temecula, CA · $45 in drug and device payments (2025) · (951) 600-4337
Dr. Farzad Tariq, MD
Temecula, CA · No drug or device payments recorded (2025) · (951) 600-4337
Dr. Fouad Salama, MD
Temecula, CA · No drug or device payments recorded (2025) · (951) 302-1888
Dr. Francesca Calicchio, MD
Temecula, CA · $79 in drug and device payments (2025) · (951) 600-4337
Dr. Jason Vu, M.D.
Temecula, CA · No drug or device payments recorded (2025) · (951) 262-4488
Dr. Jeremy Gomer, MD, PHD
Temecula, CA · $164 in drug and device payments (2025) · Telehealth · (951) 750-7888
Dr. John Michael Vincent Coralde, MD
Temecula, CA · $1,266 in drug and device payments (2025) · (951) 600-4337
Dr. Jordan Price, DO
Temecula, CA · $254 in drug and device payments (2025) · (760) 291-6700
Dr. Kameron Kishaba
Temecula, CA · $27 in drug and device payments (2025) · (951) 600-4337
Dr. Khashayar Moshtahedian, MD
Temecula, CA · $24 in drug and device payments (2025) · (951) 600-4337
Dr. Leo Zacks, M.D.
Temecula, CA · No drug or device payments recorded (2025) · (833) 574-2273

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.