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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. Puja Takiar, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-2011
Dr. Rabia Khan, MD
Sacramento, CA · No drug or device payments recorded (2025) · Telehealth · (916) 454-2345
Dr. Radha Canepa
Sacramento, CA · No drug or device payments recorded (2025) · Telehealth · (916) 734-5971
Dr. Radia Khan, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 733-3777
Dr. Rahnea Sunseri, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 520-7478
Dr. Rajendrakumar Trivedi, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 688-2000
Dr. Rajinder Trewn, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 575-8000
Dr. Rajiv Misquitta, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 688-2000
Dr. Rajkamal Hansra, MD
Sacramento, CA · $487 in drug and device payments (2025) · (916) 887-0540
Dr. Raj Marwaha, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 689-8445
Dr. Ralph Herrera, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 688-2000
Dr. Ramesh Sinaee, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 733-8713
Dr. Raminder Gill, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-7506
Dr. Ramya Mallareddy, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 733-3777
Dr. Rania Godil, MD
Sacramento, CA · No drug or device payments recorded (2025) · (760) 855-7831
Dr. Rashi Arora, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 973-5000
Dr. Rashida Bokhari, M.D
Sacramento, CA · $15 in drug and device payments (2025) · (916) 419-4962
Dr. Ravi Srinivasan, MD
Sacramento, CA · No drug or device payments recorded (2025) · Telehealth · (916) 973-5000
Dr. Rekha Mamidi, MD
Sacramento, CA · No drug or device payments recorded (2025) · Telehealth · (916) 688-2000
Dr. Reshma Gupta, MD
Sacramento, CA · No drug or device payments recorded (2025) · Telehealth · (916) 734-2737
Dr. Richard Bauer, M.D.
Sacramento, CA · $40 in drug and device payments (2025) · (916) 874-5183
Dr. Richard Kravitz, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · Telehealth · (916) 734-7004
Dr. Richard Young, MD
Sacramento, CA · No drug or device payments recorded (2025) · Telehealth · (916) 734-5959
Dr. Ricky Winardi, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 973-5000
Dr. Rie Ueno, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-3723
Dr. Rigo Acevedo
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-2737
Dr. Rinita Chakrapani
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-7506
Dr. Robert Allen, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 733-5336
Dr. Robert Derlet, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-8249
Dr. Robert Hardwick, MD
Sacramento, CA · $114 in drug and device payments (2025) · (916) 734-8230
Dr. Robert Haynes, MD
Sacramento, CA · No drug or device payments recorded (2025) · Telehealth · (916) 731-7925
Dr. Robert Tang, M.D.
Sacramento, CA · $745 in drug and device payments (2025) · Telehealth · (916) 733-8797
Dr. Rodger Siemens, MD
Sacramento, CA · No drug or device payments recorded (2025) · Telehealth · (916) 688-2000
Dr. Rogelio Pinon-gutierrez, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-7587
Dr. Rosalind Pierce, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 875-5015
Dr. Ru Cai, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-7506
Dr. Ruksaana Khan, MD
Sacramento, CA · No drug or device payments recorded (2025) · Telehealth · (916) 688-2000
Dr. Ruth Pan, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 794-8458
Dr. Sahand Ghodrati, MD
Sacramento, CA · $122 in drug and device payments (2025) · (916) 734-2737
Dr. Saiyed Ali, M.D.
Sacramento, CA · $24 in drug and device payments (2025) · Telehealth · (916) 743-2011
Dr. Sajad Janmohamed, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 973-5000
Dr. Sally Denardo, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-3787
Dr. Saman Teymouri, M.D.
Sacramento, CA · $1,028 in drug and device payments (2025) · (916) 569-4400
Dr. Samantha Quon
Sacramento, CA · $831 in drug and device payments (2025) · Telehealth · (916) 734-4597
Dr. Sandra Willis, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 482-9800
Dr. Sangeeta Parulekar, D.O.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 733-3777
Dr. Sannaporn Sereevinyayut, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 688-2000
Dr. Santiago Lombo Luque
Sacramento, CA · No drug or device payments recorded (2025) · Telehealth · (916) 734-2737
Dr. Sarah Chan, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-2737
Dr. Sarah Ferris, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-7080

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.