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. Anjali Takyar, D.O.Mission Hills, CA · $25 in drug and device payments (2025) ·
(818) 837-5785 Dr. Anna Chen, D.O.Mission Hills, CA · No drug or device payments recorded (2025) ·
(818) 365-9531 Dr. Araksi Oganesian, M.D.Mission Hills, CA · $65 in drug and device payments (2025) ·
(877) 634-3196 Dr. Aram Youssoufian, MDMission Hills, CA · No drug or device payments recorded (2025) ·
(818) 361-5311 Dr. Aren Panoyan, M.D.Mission Hills, CA · No drug or device payments recorded (2025) ·
(818) 365-9531 Dr. Artak Mkrtchyan, M.D.Mission Hills, CA · No drug or device payments recorded (2025) ·
(818) 869-7267 Dr. Artur Alaverdyan, M.D.Mission Hills, CA · $212 in drug and device payments (2025) ·
(877) 634-3196 Dr. Atul Sharma, MD.Mission Hills, CA · $19 in drug and device payments (2025) ·
(818) 837-5740 Dr. Bo DengMission Hills, CA · $32 in drug and device payments (2025) · Telehealth ·
(818) 837-5779 Dr. Borna Solomon, M.D.Mission Hills, CA · $200 in drug and device payments (2025) ·
(818) 639-4333 Dr. Catherine Matthys, M.D.Mission Hills, CA · No drug or device payments recorded (2025) ·
(818) 365-9531 Dr. Chizobam Onyedinma Ani, M.D.Mission Hills, CA · $137 in drug and device payments (2025) ·
(818) 365-9531 Dr. Clayton Naddell, MDMission Hills, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 838-4500 Dr. Danny Dursun, M.D.Mission Hills, CA · No drug or device payments recorded (2025) ·
(818) 838-4500 Dr. David Deepak Wadhwani, MDMission Hills, CA · $91 in drug and device payments (2025) ·
(818) 838-4500 Dr. Deepa Gupta, M.DMission Hills, CA · No drug or device payments recorded (2025) ·
(818) 639-4333 Dr. Delora Climaco, MD.Mission Hills, CA · $33 in drug and device payments (2025) ·
(818) 837-2753 Dr. Donald Huey, MDMission Hills, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 837-5795 Dr. Donald Rebhun, MDMission Hills, CA · No drug or device payments recorded (2025) ·
(818) 838-4510 Dr. Eveleen Bhasin, D.O.Mission Hills, CA · $284 in drug and device payments (2025) ·
(818) 837-5725 Dr. Faraz Ali, M.D.Mission Hills, CA · $101 in drug and device payments (2025) ·
(818) 365-9531 Dr. Geoffrey Liang, D.O.Mission Hills, CA · $197 in drug and device payments (2025) ·
(877) 634-3196 Dr. Haneen Khamag, M.D.Mission Hills, CA · No drug or device payments recorded (2025) ·
(818) 837-5785 Dr. Jaganath Naidu, MDMission Hills, CA · $120 in drug and device payments (2025) ·
(877) 634-3196 Dr. Jaime Altamirano, M.D.Mission Hills, CA · No drug or device payments recorded (2025) ·
(818) 838-4587 Dr. James Tashiro, MD.Mission Hills, CA · No drug or device payments recorded (2025) ·
(818) 837-5765 Dr. James Wong, M.D.Mission Hills, CA · $49 in drug and device payments (2025) ·
(818) 837-5785 Dr. Jay Dhiman, MDMission Hills, CA · No drug or device payments recorded (2025) ·
(818) 869-7200 Dr. Jeffery Lee, MDMission Hills, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 837-5750 Dr. Jennifer Hyer, D.O.Mission Hills, CA · $24 in drug and device payments (2025) ·
(818) 838-4587 Dr. Jill Samovar, M.D.Mission Hills, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 838-4542 Dr. Joel Clarfield, M.D.Mission Hills, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 838-2200 Dr. Jose Esparrago, M.D.Mission Hills, CA · No drug or device payments recorded (2025) ·
(818) 365-8553 Dr. Joseph Chambers, MD.Mission Hills, CA · $32 in drug and device payments (2025) ·
(818) 837-5785 Dr. Karine Aloyan, M.D.Mission Hills, CA · No drug or device payments recorded (2025) ·
(818) 869-7200 Dr. Karine Yeghoyan, M.D.Mission Hills, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 488-5188 Dr. Kellie Russell, D.O.Mission Hills, CA · $134 in drug and device payments (2025) ·
(818) 365-9531 Dr. Kendrick Jeong, M.D.Mission Hills, CA · No drug or device payments recorded (2025) ·
(818) 838-4500 Dr. Komal Wadhwani, D.O.Mission Hills, CA · $650 in drug and device payments (2025) ·
(877) 634-3196 Dr. Liana Joa, M.D.Mission Hills, CA · No drug or device payments recorded (2025) ·
(818) 365-9531 Dr. Linda Sterry, DOMission Hills, CA · $103 in drug and device payments (2025) ·
(818) 837-5554 Dr. Lou Ellen Wilson, MDMission Hills, CA · $18 in drug and device payments (2025) · Telehealth ·
(818) 837-2753 Dr. Lu Wang, M.D.Mission Hills, CA · $38 in drug and device payments (2025) ·
(877) 634-3196 Dr. Manoj Mathew, M.D.Mission Hills, CA · No drug or device payments recorded (2025) ·
(818) 838-4587 Dr. Marja Paulino, MDMission Hills, CA · No drug or device payments recorded (2025) · Telehealth ·
(888) 778-5000 Dr. Mark Gobrial, M.D.Mission Hills, CA · No drug or device payments recorded (2025) ·
(818) 365-9531 Dr. Michael Jarahzadeh, MD.Mission Hills, CA · No drug or device payments recorded (2025) ·
(818) 837-2753 Dr. Michael Palazzolo, MEDICAL DOCTORMission Hills, CA · No drug or device payments recorded (2025) ·
(818) 361-5311 Dr. Michael Sanchez, MD.Mission Hills, CA · $18 in drug and device payments (2025) · Telehealth ·
(818) 837-5752 Dr. Michael Ugurian, M.D.Mission Hills, CA · $39 in drug and device payments (2025) ·
(877) 634-3196 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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