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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. Khashayar Nemovi
Rancho Mirage, CA · No drug or device payments recorded (2025) · (760) 333-1813
Dr. Kourosh Moshiri, M.D
Rancho Mirage, CA · $103 in drug and device payments (2025) · Telehealth · (760) 834-7900
Dr. Krista Burris, MD
Rancho Mirage, CA · $28 in drug and device payments (2025) · (760) 674-3847
Dr. Loren Khoury, D.O.
Rancho Mirage, CA · No drug or device payments recorded (2025) · (760) 834-7970
Dr. Louis May, MD
Rancho Mirage, CA · No drug or device payments recorded (2025) · (760) 837-8905
Dr. Maria I. Encarnita Garcia, M.D.
Rancho Mirage, CA · $266 in drug and device payments (2025) · (760) 773-9750
Dr. Maritza De La Pena, MD
Rancho Mirage, CA · No drug or device payments recorded (2025) · Telehealth · (760) 837-8748
Dr. Mary Howell, M.D.
Rancho Mirage, CA · No drug or device payments recorded (2025) · (760) 340-3611
Dr. Mehrdad Abbasi, MD
Rancho Mirage, CA · $156 in drug and device payments (2025) · Telehealth · (760) 834-7945
Dr. Mei Lai, MD
Rancho Mirage, CA · No drug or device payments recorded (2025) · Telehealth · (760) 834-7900
Dr. Meng Zhao, MD
Rancho Mirage, CA · $41 in drug and device payments (2025) · Telehealth · (760) 773-3379
Dr. Michael Platt, M.D.
Rancho Mirage, CA · No drug or device payments recorded (2025) · (760) 836-3232
Dr. Monica Jordan, MD
Rancho Mirage, CA · No drug or device payments recorded (2025) · Telehealth · (760) 340-3911
Dr. Montee Suleiman, MD
Rancho Mirage, CA · No drug or device payments recorded (2025) · (310) 927-7225
Dr. Natasha Creighton, MD
Rancho Mirage, CA · No drug or device payments recorded (2025) · Telehealth · (760) 834-7970
Dr. Niket Patel
Rancho Mirage, CA · $21 in drug and device payments (2025) · (760) 333-1813
Dr. Noor Al-ameri, MD
Rancho Mirage, CA · No drug or device payments recorded (2025) · Telehealth · (760) 333-1813
Dr. Padma Khanchustambham, M.D.
Rancho Mirage, CA · $176 in drug and device payments (2025) · Telehealth · (760) 699-7117
Dr. Paige Dubin
Rancho Mirage, CA · No drug or device payments recorded (2025) · Telehealth · (442) 274-2570
Dr. Paul Biskar, M.D.
Rancho Mirage, CA · No drug or device payments recorded (2025) · (760) 346-0600
Dr. Peter St Louis, MD
Rancho Mirage, CA · No drug or device payments recorded (2025) · (760) 568-9831
Dr. Ravinderpal Mann, M.D.
Rancho Mirage, CA · No drug or device payments recorded (2025) · Telehealth · (760) 674-8894
Dr. Raymond Lin, M.D.
Rancho Mirage, CA · No drug or device payments recorded (2025) · (760) 827-8905
Dr. Richard Geist, M.D.
Rancho Mirage, CA · No drug or device payments recorded (2025) · (760) 567-3664
Dr. Robert Elliott, DO
Rancho Mirage, CA · $449 in drug and device payments (2025) · Telehealth · (760) 340-3911
Dr. Robert Greene, MD
Rancho Mirage, CA · No drug or device payments recorded (2025) · (914) 714-8914
Dr. Russell Grant, M.D.
Rancho Mirage, CA · No drug or device payments recorded (2025) · (760) 674-3847
Dr. Shahaf Tuler, MD, MS
Rancho Mirage, CA · No drug or device payments recorded (2025) · Telehealth · (760) 340-3911
Dr. Sheda Heidarian, M.D.
Rancho Mirage, CA · No drug or device payments recorded (2025) · (760) 834-7960
Dr. Sherif Abdou, MD
Rancho Mirage, CA · No drug or device payments recorded (2025) · (760) 674-8347
Dr. Stephanie Yao, MD
Rancho Mirage, CA · No drug or device payments recorded (2025) · Telehealth · (760) 834-7900
Dr. Syed Azam, M.D.
Rancho Mirage, CA · $741 in drug and device payments (2025) · Telehealth · (760) 202-0686
Dr. Tiffany Jen, M.D.
Rancho Mirage, CA · No drug or device payments recorded (2025) · (760) 834-7970
Dr. Vinita Verghese, MD
Rancho Mirage, CA · $15 in drug and device payments (2025) · Telehealth · (760) 346-5688
Dr. William Longfellow, M.D.
Rancho Mirage, CA · No drug or device payments recorded (2025) · (760) 340-6777
Dr. William Longfellow, M.D.
Rancho Mirage, CA · No drug or device payments recorded (2025) · (760) 340-6777
Dr. Whitney Ngo
Rancho Mission Viejo, CA · $518 in drug and device payments (2025) · Telehealth · (949) 542-7700
Dr. Ben Zandpour, MD
Rancho Palos Verdes, CA · No drug or device payments recorded (2025) · (949) 400-8867
Dr. Leslie Poelns-joseph, M.D.
Rancho Palos Verdes, CA · No drug or device payments recorded (2025) · (310) 738-2352
Dr. Mark Chinowsky
Rancho Palos Verdes, CA · No drug or device payments recorded (2025) · (310) 833-1632
Dr. Patricia Pegram, M.D.
Rancho Palos Verdes, CA · No drug or device payments recorded (2025) · (310) 514-2969
Dr. Richard Kim, MD
Rancho Palos Verdes, CA · No drug or device payments recorded (2025) · (310) 882-0873
Dr. Stuart Hoffman, M.D.
Rancho Palos Verdes, CA · No drug or device payments recorded (2025) · (323) 363-4577
Dr. Charles Graham, M.D.
Rancho Santa Fe, CA · No drug or device payments recorded (2025) · (858) 756-5475
Dr. David Nourok, M.D.
Rancho Santa Fe, CA · No drug or device payments recorded (2025) · (858) 735-0252
Dr. George Groth, M.D.
Rancho Santa Fe, CA · No drug or device payments recorded (2025) · (858) 756-2116
Dr. Joseph Smith, MD
Rancho Santa Fe, CA · $307,078 in drug and device payments (2025) · (858) 337-0032
Dr. Robert Sobol, M.D.
Rancho Santa Fe, CA · No drug or device payments recorded (2025) · (858) 756-5437
Dr. Tammy Lin, MD
Rancho Santa Fe, CA · $139 in drug and device payments (2025) · (858) 367-3443
Dr. Deepak Patel, MD
Rancho Santa Margarita, CA · $18 in drug and device payments (2025) · (949) 577-3937

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.