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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. Amir Fahid
Coronado, CA · No drug or device payments recorded (2025) · (619) 522-3731
Dr. Genevieve Bloom, M.D.
Coronado, CA · No drug or device payments recorded (2025) · Telehealth · (619) 435-0268
Dr. Gina Casian, M.D.
Coronado, CA · No drug or device payments recorded (2025) · (619) 675-3221
Dr. Laura Petrovich, MD
Coronado, CA · $64 in drug and device payments (2025) · Telehealth · (619) 435-2234
Dr. Sanjay Rajpara, MD
Coronado, CA · $161 in drug and device payments (2025) · Telehealth · (559) 593-6450
Dr. Stephen Sun, DO
Coronado, CA · $35 in drug and device payments (2025) · (619) 522-3600
Dr. Tyler Mitchell, MD
Coronado, CA · $241 in drug and device payments (2025) · (619) 846-6440
Dr. Alfred Oppenheim, M.D.
Corte Madera, CA · No drug or device payments recorded (2025) · (415) 945-8808
Dr. Ruth Rubin, M.D.
Corte Madera, CA · $119 in drug and device payments (2025) · (415) 927-0101
Dr. Sajot Grewal, M.D.
Corte Madera, CA · No drug or device payments recorded (2025) · Telehealth · (415) 945-8808
Dr. William Mcallister, M.D.
Corte Madera, CA · No drug or device payments recorded (2025) · (415) 924-5010
Dr. Abdul Khan, M.D.
Costa Mesa, CA · $642 in drug and device payments (2025) · Telehealth · (949) 574-3615
Dr. Adnan Akhtar, D.O.
Costa Mesa, CA · $83 in drug and device payments (2025) · (949) 642-2734
Dr. Dariush Lavi, M.D.
Costa Mesa, CA · $462 in drug and device payments (2025) · Telehealth · (714) 585-1842
Dr. David Huang, MD
Costa Mesa, CA · $118 in drug and device payments (2025) · (949) 722-6178
Dr. Dilip Patel, MD
Costa Mesa, CA · No drug or device payments recorded (2025) · (714) 957-5000
Dr. Edward Lee, MD
Costa Mesa, CA · $43 in drug and device payments (2025) · (714) 436-4700
Dr. Elizabeth Pham, M.D.
Costa Mesa, CA · No drug or device payments recorded (2025) · (714) 436-4775
Dr. Hoan Le, MD
Costa Mesa, CA · No drug or device payments recorded (2025) · (714) 957-5000
Dr. Huong Le, MD
Costa Mesa, CA · $125 in drug and device payments (2025) · (714) 957-5000
Dr. Jeffrey Dyo, M.D.
Costa Mesa, CA · No drug or device payments recorded (2025) · Telehealth · (949) 386-5101
Dr. Kelly Mccann, M.D.
Costa Mesa, CA · No drug or device payments recorded (2025) · Telehealth · (949) 574-5800
Dr. Margarita Pereyda, M.D.
Costa Mesa, CA · No drug or device payments recorded (2025) · (949) 650-0186
Dr. Maryam Attar-seyedi, M.D
Costa Mesa, CA · No drug or device payments recorded (2025) · (714) 668-2500
Dr. Matthew Boone, MD
Costa Mesa, CA · No drug or device payments recorded (2025) · (949) 386-5101
Dr. Munazza Khan, M.D.
Costa Mesa, CA · $641 in drug and device payments (2025) · (949) 574-3615
Dr. Nick Mashour, M.D
Costa Mesa, CA · No drug or device payments recorded (2025) · (714) 540-5900
Dr. Paul Kuhn, M.D.
Costa Mesa, CA · No drug or device payments recorded (2025) · (949) 650-0186
Dr. Philip Cheu, MD
Costa Mesa, CA · $52 in drug and device payments (2025) · Telehealth · (714) 929-2300
Dr. Ragavi Elangovan, D.O
Costa Mesa, CA · No drug or device payments recorded (2025) · (562) 237-6417
Dr. Roxanne Stallworth, M.D., M.P.H.
Costa Mesa, CA · $54 in drug and device payments (2025) · (949) 791-8888
Dr. Sailaja Reddy, MD
Costa Mesa, CA · No drug or device payments recorded (2025) · (714) 957-5000
Dr. Shawna Le, MD
Costa Mesa, CA · No drug or device payments recorded (2025) · Telehealth · (949) 398-1440
Dr. Shelley Han, M.D.
Costa Mesa, CA · No drug or device payments recorded (2025) · (888) 789-9585
Dr. Shirin Afrasiabi, M.D. INC
Costa Mesa, CA · $144 in drug and device payments (2025) · Telehealth · (949) 548-5700
Dr. Steven Silverman, MD
Costa Mesa, CA · No drug or device payments recorded (2025) · (714) 957-5000
Dr. Yvonne Kwan, MD
Costa Mesa, CA · No drug or device payments recorded (2025) · Telehealth · (714) 436-4700
Dr. Maria Danilychev, M.D.
Covelo, CA · No drug or device payments recorded (2025) · (707) 983-6181
Dr. Snehal Raisoni, MD
Covelo, CA · No drug or device payments recorded (2025) · (707) 983-6181
Dr. Adrian Tripp, M.D.
Covina, CA · No drug or device payments recorded (2025) · Telehealth · (626) 331-6411
Dr. Ahmereen Khan, M.D.
Covina, CA · No drug or device payments recorded (2025) · (626) 331-6411
Dr. Amin Gosla, DO
Covina, CA · No drug or device payments recorded (2025) · Telehealth · (626) 331-6411
Dr. Arlene Nepomuceno, MD
Covina, CA · No drug or device payments recorded (2025) · Telehealth · (626) 331-6411
Dr. Asiya Radhanpuri, DO
Covina, CA · No drug or device payments recorded (2025) · Telehealth · (626) 331-6411
Dr. Chibao Nguyen, D.O.
Covina, CA · $66 in drug and device payments (2025) · (626) 331-6411
Dr. Cruz-elena Sundquist, M.D.
Covina, CA · No drug or device payments recorded (2025) · (626) 967-0559
Dr. Eugene Edward Symaco, M.D.
Covina, CA · $839 in drug and device payments (2025) · Telehealth · (626) 331-2209
Dr. Farhad Rezvani, MD
Covina, CA · $1,169 in drug and device payments (2025) · Telehealth · (626) 331-0175
Dr. Hani Hashem, MD
Covina, CA · $177 in drug and device payments (2025) · Telehealth · (626) 331-2222
Dr. Harry Chao, MD
Covina, CA · No drug or device payments recorded (2025) · (626) 331-6411

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.