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 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. Robert Thayer, DOLos Angeles, CA · $166 in drug and device payments (2025) · Telehealth ·
(323) 913-4387 Dr. Robert Tungate, MDLos Angeles, CA · $2,840 in drug and device payments (2025) ·
(323) 409-7556 Dr. Robert Washington, MDLos Angeles, CA · $462 in drug and device payments (2025) ·
(213) 207-5000 Dr. Robert Winters, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 278-4495 Dr. Robin Clarke, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 206-6766 Dr. Robin Kelley, MDLos Angeles, CA · $27,483 in drug and device payments (2025) · Telehealth ·
(310) 794-9718 Dr. Rochelle RawlsLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 226-2170 Dr. Roderick Seamster, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(323) 357-6688 Dr. Rodolfo Gratton, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 794-7256 Dr. Rogelio Bravo, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(323) 226-7556 Dr. Roger Hsu, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 409-7556 Dr. Rohan Rastogi, MD, MPHLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 409-1000 Dr. Roland Sakiyama, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 794-9956 Dr. Ronald Zlotolow, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(323) 634-6500 Dr. Ron Ben-ari, M.D.Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth ·
(323) 226-6571 Dr. Rose Maly, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 825-6301 Dr. Roshanak Eftekhari, M.D.Los Angeles, CA · $67 in drug and device payments (2025) ·
(323) 660-5191 Dr. Roshni BhatnagarLos Angeles, CA · $60 in drug and device payments (2025) ·
(310) 206-6362 Dr. Roya Golshani, M.D.Los Angeles, CA · $1,198 in drug and device payments (2025) ·
(310) 553-5588 Dr. Ruben Alvarez, MDLos Angeles, CA · No drug or device payments recorded (2025) · Telehealth ·
(323) 783-4011 Dr. Rubens Song, M.D.Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth ·
(323) 857-2724 Dr. Ryan AroninLos Angeles, CA · No drug or device payments recorded (2025) · Telehealth ·
(310) 206-8000 Dr. Ryan Clare, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 783-4516 Dr. Sabrina Ximenez, MDLos Angeles, CA · $470 in drug and device payments (2025) · Telehealth ·
(137) 419-7272 Dr. Sae KangLos Angeles, CA · No drug or device payments recorded (2025) · Telehealth ·
(323) 699-2172 Dr. Sae Takada, MD, PHDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 206-6232 Dr. Sahar Abdelrahman, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 789-5610 Dr. Sahithi Sharma, M.B.B.S.Los Angeles, CA · $35 in drug and device payments (2025) ·
(915) 215-8000 Dr. Sajeeda TabassumLos Angeles, CA · No drug or device payments recorded (2025) ·
(213) 744-3945 Dr. Saleem Alameh, MDLos Angeles, CA · $125 in drug and device payments (2025) ·
(310) 267-9643 Dr. Salman Khan, M.DLos Angeles, CA · $650 in drug and device payments (2025) · Telehealth ·
(323) 225-2550 Dr. Salvador Rosales, MDLos Angeles, CA · No drug or device payments recorded (2025) · Telehealth ·
(213) 623-2225 Dr. Samir Patel, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 423-5581 Dr. Sammy SayedLos Angeles, CA · $37 in drug and device payments (2025) ·
(310) 206-6232 Dr. Samuel Berkman, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 825-0631 Dr. Samuel Bernal, MD, PHDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 825-0631 Dr. Samuel Pierce, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(213) 355-2600 Dr. Samuel Skootsky, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 206-4646 Dr. Samuel Wosk, M.D.Los Angeles, CA · $119 in drug and device payments (2025) ·
(323) 264-4006 Dr. Sandra Bisogno, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 344-2500 Dr. Sandra Kimm, MDLos Angeles, CA · No drug or device payments recorded (2025) · Telehealth ·
(323) 857-2000 Dr. Sandra Lee, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(213) 253-2677 Dr. Sang BaikLos Angeles, CA · $2,358 in drug and device payments (2025) ·
(213) 388-1111 Dr. Sangeeta Aggarwal, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 783-4011 Dr. Sang-hee Choi, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 857-2000 Dr. S. Anjani Mattai, MDLos Angeles, CA · No drug or device payments recorded (2025) · Telehealth ·
(310) 206-8000 Dr. Sarah GoldgarLos Angeles, CA · No drug or device payments recorded (2025) · Telehealth ·
(310) 206-6232 Dr. Sarah Guerry, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(213) 744-3133 Dr. Sarah Hooks, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 857-2000 Dr. Sarah Kayne Allen, MDLos Angeles, CA · $122 in drug and device payments (2025) · Telehealth ·
(323) 442-5100 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.
- High blood pressure
- Type 2 diabetes
- High cholesterol
- Preventive care
- Chronic disease management
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.
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