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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. Venkata Naga Kiran Dintyala, MD
La Jolla, CA · $627 in drug and device payments (2025) · Telehealth · (619) 592-6133
Dr. William Land, M.D.
La Jolla, CA · No drug or device payments recorded (2025) · (858) 554-8970
Dr. William Stendardi, MD
La Jolla, CA · $34 in drug and device payments (2025) · (858) 824-5383
Dr. Wynnshang Sun, MD
La Jolla, CA · $1,369 in drug and device payments (2025) · Telehealth · (858) 452-7040
Dr. Yusi Gong, MD
La Jolla, CA · $150 in drug and device payments (2025) · (858) 657-8530
Dr. Zhaoyi Qin, M.D.
La Jolla, CA · $183 in drug and device payments (2025) · Telehealth · (858) 554-7100
Dr. Zoya Qureshy
La Jolla, CA · No drug or device payments recorded (2025) · (858) 657-5281
Dr. Farid Saadat, MD
Lake Elsinore, CA · $471 in drug and device payments (2025) · (951) 471-5711
Dr. Hugo Gonzalez, MD
Lake Elsinore, CA · No drug or device payments recorded (2025) · (760) 631-5000
Dr. Mohamed Badr, MD
Lake Elsinore, CA · No drug or device payments recorded (2025) · (951) 566-6764
Dr. Saif Bajwa, MD
Lake Elsinore, CA · No drug or device payments recorded (2025) · (702) 579-3203
Dr. Sara Yusufaly
Lake Elsinore, CA · No drug or device payments recorded (2025) · (951) 245-0505
Dr. Tyrone Arce, MD
Lake Elsinore, CA · No drug or device payments recorded (2025) · (951) 471-0266
Dr. Madineth Muy, M.D.
Lake Forest, CA · $787 in drug and device payments (2025) · Telehealth · (949) 242-6902
Dr. Nicole Sandler, NP
Lake Forest, CA · No drug or device payments recorded (2025) · (949) 264-2383
Dr. Sahar Lashin, M.D.
Lake Forest, CA · No drug or device payments recorded (2025) · Telehealth · (949) 749-1049
Dr. Suma Oommen, M.D.
Lake Forest, CA · No drug or device payments recorded (2025) · Telehealth · (949) 852-9038
Dr. Gary Finstad, M.D.
Lake Isabella, CA · $122 in drug and device payments (2025) · (760) 379-8630
Dr. Paul Giem, MD
Lake Isabella, CA · No drug or device payments recorded (2025) · (760) 379-2681
Dr. Phillip Martin, MD
Lake Isabella, CA · $62 in drug and device payments (2025) · (760) 379-8630
Dr. Robert Gross, DO
Lake Isabella, CA · No drug or device payments recorded (2025) · (760) 379-8630
Dr. Anju Goel, MD, MPH
Lakeport, CA · No drug or device payments recorded (2025) · (707) 263-1090
Dr. Anne Tait, MD
Lakeport, CA · No drug or device payments recorded (2025) · (707) 263-3520
Dr. Bruce Deas, MD
Lakeport, CA · No drug or device payments recorded (2025) · (707) 262-5000
Dr. Charles Seage, M.D.
Lakeport, CA · No drug or device payments recorded (2025) · (707) 472-4596
Dr. Diane Pege, MD
Lakeport, CA · No drug or device payments recorded (2025) · (707) 262-5117
Dr. Elyse Donald, M.D.
Lakeport, CA · No drug or device payments recorded (2025) · (707) 263-7082
Dr. Harneet Bath, M.D.
Lakeport, CA · No drug or device payments recorded (2025) · Telehealth · (707) 263-6885
Dr. John Schweifler, M.D.
Lakeport, CA · No drug or device payments recorded (2025) · (707) 263-7082
Dr. Keith Arnold, MD
Lakeport, CA · No drug or device payments recorded (2025) · (707) 263-3670
Dr. Robert Shapiro, MD
Lakeport, CA · $50 in drug and device payments (2025) · (707) 262-5000
Dr. Terri Turner, DO
Lakeport, CA · $115 in drug and device payments (2025) · (707) 263-8383
Dr. Yvonne Riba, PA
Lakeport, CA · $115 in drug and device payments (2025) · (707) 263-8382
Dr. Nathan Mcfarland, M.D
Lakeside, CA · $21 in drug and device payments (2025) · (619) 390-9975
Dr. Aaron Kern, MD
Lakewood, CA · No drug or device payments recorded (2025) · (562) 630-3105
Dr. Augustus Ohemeng, MD
Lakewood, CA · No drug or device payments recorded (2025) · (562) 923-4911
Dr. Cherie Garcia, MD
Lakewood, CA · $2,573 in drug and device payments (2025) · (562) 630-3105
Dr. Daisy Guevara, MD
Lakewood, CA · No drug or device payments recorded (2025) · (562) 923-4911
Dr. Ellyn Phan, M.D.
Lakewood, CA · $340 in drug and device payments (2025) · Telehealth · (657) 241-9935
Dr. Jesse Licuanan, M.D.
Lakewood, CA · $246 in drug and device payments (2025) · Telehealth · (562) 531-0377
Dr. Khalid Saeed, MD
Lakewood, CA · $50 in drug and device payments (2025) · (562) 630-3105
Dr. Leejoe Pallickal, M.D.
Lakewood, CA · $962 in drug and device payments (2025) · Telehealth · (562) 531-5159
Dr. Mansoor Shah, MD
Lakewood, CA · $1,970 in drug and device payments (2025) · (562) 630-3105
Dr. Michael Freund, M.D.
Lakewood, CA · No drug or device payments recorded (2025) · (562) 531-6140
Dr. Neha Bhansali, M.D
Lakewood, CA · $565 in drug and device payments (2025) · Telehealth · (562) 531-0377
Dr. Olga Ginzburg, MD
Lakewood, CA · $2,342 in drug and device payments (2025) · (562) 630-3105
Dr. Priyanka Gogte, MD
Lakewood, CA · No drug or device payments recorded (2025) · Telehealth · (562) 630-3111
Dr. Robert Foster, MD
Lakewood, CA · No drug or device payments recorded (2025) · (562) 537-4194
Dr. Sam Abdelmelek, MD
Lakewood, CA · No drug or device payments recorded (2025) · (562) 633-1616
Dr. Samuel Ong, MD
Lakewood, CA · No drug or device payments recorded (2025) · (562) 602-6800

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.