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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. Mohammad Rezvani, M.D.
Los Angeles, CA · $248 in drug and device payments (2025) · Telehealth · (310) 858-5090
Dr. Mohsen Badri, MD, DO, MPH
Los Angeles, CA · $29 in drug and device payments (2025) · (310) 914-9246
Dr. Moira Casillas, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 783-4011
Dr. Moises Cruz, MD
Los Angeles, CA · $110 in drug and device payments (2025) · Telehealth · (323) 783-4011
Dr. Moises Islas Alvarez, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 869-5437
Dr. Monica Abreu Diaz
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 206-6232
Dr. Mopelola Adeyemo, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (310) 825-7921
Dr. Morton Kamzan, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (877) 358-5841
Dr. Munira Habib, M.D
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 226-7556
Dr. Mya Aye, MD, MBBS
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 442-5100
Dr. Myint Saw, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (213) 744-3914
Dr. Myra Chai, M.D.
Los Angeles, CA · $1,032 in drug and device payments (2025) · (213) 484-8474
Dr. Myrna Kuo, M.D.
Los Angeles, CA · $733 in drug and device payments (2025) · Telehealth · (808) 523-1600
Dr. Nadgeda Moore, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 848-4522
Dr. Naghmeh Paktan, D.O.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 971-6241
Dr. Naina Lalani, MD
Los Angeles, CA · $140 in drug and device payments (2025) · Telehealth · (888) 663-6331
Dr. Naina Vashishtha, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 783-4011
Dr. Nam Lim, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 794-9718
Dr. Nancy Greengold, MD
Los Angeles, CA · $683 in drug and device payments (2025) · (310) 954-1948
Dr. Nancy Kim, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 927-4719
Dr. Nancy Miles, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 206-6232
Dr. Nancy Moore, DO
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (323) 442-5100
Dr. Nandita Sriram, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 825-7375
Dr. Naomi Duncan, M.D.
Los Angeles, CA · $197 in drug and device payments (2025) · Telehealth · (310) 794-1276
Dr. Natalie Bransky, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 825-8173
Dr. Natalya Sumina, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (310) 391-7281
Dr. Nathalie Sami, MD
Los Angeles, CA · $567 in drug and device payments (2025) · (323) 442-5100
Dr. Nathaniel Meyer
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 825-9111
Dr. Nathaniel Pedley, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 825-7375
Dr. Nathan Samras, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 206-8000
Dr. Nathan Vanderveen, MD
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (310) 206-6232
Dr. Nattapaun Thepyasuwan, D.O.
Los Angeles, CA · No drug or device payments recorded (2025) · (424) 522-7100
Dr. Nazanin Azadi, M.D
Los Angeles, CA · $554 in drug and device payments (2025) · Telehealth · (323) 336-7556
Dr. Neda Shafaghi, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 659-2738
Dr. Neeka Noori, DO
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 857-2000
Dr. Negar Ghafouri, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 206-6923
Dr. Negar Kahen, MD
Los Angeles, CA · $52 in drug and device payments (2025) · Telehealth · (213) 988-8380
Dr. Neha Agarwal, MD
Los Angeles, CA · $131 in drug and device payments (2025) · Telehealth · (909) 561-7133
Dr. Neha Mahajan, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 226-5610
Dr. Neil Bhambi
Los Angeles, CA · $35 in drug and device payments (2025) · (323) 409-7556
Dr. Neil Paige, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 268-3034
Dr. Neil Parker, MD
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (310) 825-6301
Dr. Neil Wenger, MD
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (310) 206-0644
Dr. Nelson Sanchez, MD
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (323) 783-4011
Dr. Neyshia Rodriguez, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (833) 574-2273
Dr. Nhan Pham
Los Angeles, CA · $57 in drug and device payments (2025) · (213) 380-7298
Dr. Nicholas Hutchings, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (213) 293-6975
Dr. Nicholas Landsman, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 857-4312
Dr. Nicholas Oo, DO
Los Angeles, CA · No drug or device payments recorded (2025) · (626) 268-3470
Dr. Nicholas Reese, M.D
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 825-7375

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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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.