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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. Dan Dardashti, M.D.
Valley Village, CA · $74 in drug and device payments (2025) · Telehealth · (818) 508-9190
Dr. Pazrica Cho, M.D.
Valley Village, CA · $394 in drug and device payments (2025) · Telehealth · (818) 761-1800
Dr. Anhtuan Tran, MD.
Van Nuys, CA · $137 in drug and device payments (2025) · Telehealth · (818) 989-2406
Dr. Anshula Shekar, MD
Van Nuys, CA · No drug or device payments recorded (2025) · (818) 627-3000
Dr. Asher Ram, MD
Van Nuys, CA · No drug or device payments recorded (2025) · (818) 997-3232
Dr. Ashwani Bhardwaj, MD
Van Nuys, CA · No drug or device payments recorded (2025) · (818) 778-6332
Dr. Atousa Salehani, MD
Van Nuys, CA · No drug or device payments recorded (2025) · Telehealth · (818) 781-7097
Dr. Azadeh Modaresi, M.D.
Van Nuys, CA · $61 in drug and device payments (2025) · (818) 668-8898
Dr. Cheong Choi, MD
Van Nuys, CA · $50 in drug and device payments (2025) · (818) 881-9444
Dr. Christina To
Van Nuys, CA · No drug or device payments recorded (2025) · (818) 994-0101
Dr. Daniel Amde, M.D,
Van Nuys, CA · $25 in drug and device payments (2025) · (818) 325-0200
Dr. David Chu, DO
Van Nuys, CA · $142 in drug and device payments (2025) · (818) 782-6000
Dr. David Lee, M.D.
Van Nuys, CA · $124 in drug and device payments (2025) · (818) 780-2106
Dr. Denise Phan, M.D.
Van Nuys, CA · $802 in drug and device payments (2025) · Telehealth · (818) 785-0300
Dr. Eliza Ahn, M.D.
Van Nuys, CA · $830 in drug and device payments (2025) · Telehealth · (747) 800-7454
Dr. Eloisa Pangan, M.D.
Van Nuys, CA · No drug or device payments recorded (2025) · (818) 781-7097
Dr. Erick Balderrama, M.D.
Van Nuys, CA · No drug or device payments recorded (2025) · (818) 908-8000
Dr. Frank Balderrama, M.D.
Van Nuys, CA · No drug or device payments recorded (2025) · (818) 908-8000
Dr. Frida Rosenstein, M.D.
Van Nuys, CA · No drug or device payments recorded (2025) · (818) 901-9669
Dr. Hanan Lobel, MD
Van Nuys, CA · $1,150 in drug and device payments (2025) · (818) 989-0041
Dr. Jeffrey Chong, M.D.
Van Nuys, CA · $570 in drug and device payments (2025) · Telehealth · (818) 780-2106
Dr. Josef Lobel, M.D.
Van Nuys, CA · $689 in drug and device payments (2025) · (818) 989-0041
Dr. Joseph Zaky, M.D.
Van Nuys, CA · No drug or device payments recorded (2025) · Telehealth · (818) 947-4026
Dr. Karl Kaplan, M.D.
Van Nuys, CA · $80 in drug and device payments (2025) · Telehealth · (818) 376-1155
Dr. Kirsten Kaldas, D.O.
Van Nuys, CA · No drug or device payments recorded (2025) · Telehealth · (818) 947-4026
Dr. Kook Chang, M.D.
Van Nuys, CA · $1,164 in drug and device payments (2025) · Telehealth · (818) 780-7771
Dr. Linda Sevilla, M.D.
Van Nuys, CA · No drug or device payments recorded (2025) · (818) 778-1920
Dr. Lisa Kim
Van Nuys, CA · $594 in drug and device payments (2025) · (818) 881-9444
Dr. March Angela Roan, MD
Van Nuys, CA · No drug or device payments recorded (2025) · Telehealth · (818) 375-1911
Dr. Maria Victoria Alfaro, M.D.
Van Nuys, CA · $352 in drug and device payments (2025) · (818) 997-7117
Dr. Marshall Zablen, MD
Van Nuys, CA · No drug or device payments recorded (2025) · (818) 779-1900
Dr. Matthew Mischel, M.D.
Van Nuys, CA · $144 in drug and device payments (2025) · Telehealth · (818) 787-2410
Dr. Mindy Cheng, M.D.
Van Nuys, CA · No drug or device payments recorded (2025) · (818) 364-3632
Dr. Mitchell Nishimoto, M.D.
Van Nuys, CA · $120 in drug and device payments (2025) · Telehealth · (818) 785-3889
Dr. Mohammad Rasekhi, M.D.
Van Nuys, CA · No drug or device payments recorded (2025) · (818) 650-6700
Dr. Rabi Alam, MD
Van Nuys, CA · $437 in drug and device payments (2025) · (818) 901-7855
Dr. Smita Subramaniam, MD
Van Nuys, CA · No drug or device payments recorded (2025) · (818) 627-3050
Dr. Sridhar Ramachandran, M.D.
Van Nuys, CA · $120 in drug and device payments (2025) · (818) 782-1321
Dr. Stephen Reale, M.D.
Van Nuys, CA · $1,122 in drug and device payments (2025) · Telehealth · (818) 994-5100
Dr. Steven Rouff, M.D.
Van Nuys, CA · No drug or device payments recorded (2025) · (818) 778-1920
Dr. Suman Patel, MD
Van Nuys, CA · $54 in drug and device payments (2025) · (818) 901-7855
Dr. Sylvain Silberstein, M.D.
Van Nuys, CA · $298 in drug and device payments (2025) · Telehealth · (818) 778-1920
Dr. Beverly Karpman, M.D.
Venice, CA · No drug or device payments recorded (2025) · (310) 392-8630
Dr. Gary Richwald, MD
Venice, CA · No drug or device payments recorded (2025) · (310) 396-2200
Dr. Gilmore Chung, M.D.
Venice, CA · $111 in drug and device payments (2025) · (310) 392-8636
Dr. Jose Quiroga, M.D.
Venice, CA · No drug or device payments recorded (2025) · (310) 392-8636
Dr. Robert Heller, M.D.
Venice, CA · No drug or device payments recorded (2025) · (310) 480-0177
Dr. Todd Feinman, M.D.
Venice, CA · No drug or device payments recorded (2025) · (310) 450-6519
Dr. Albert Kam, M.D.
Ventura, CA · No drug or device payments recorded (2025) · Telehealth · (805) 477-6000
Dr. Ali Esmaili, MD
Ventura, CA · No drug or device payments recorded (2025) · (805) 652-5652

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.