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. Lisanne Burkholder, MD FACP FRACPTruckee, CA · No drug or device payments recorded (2025) ·
(530) 582-1212 Dr. Naveen Maramreddy, M.D.Truckee, CA · No drug or device payments recorded (2025) ·
(530) 582-6492 Dr. Richard GanongTruckee, CA · No drug or device payments recorded (2025) ·
(530) 581-8864 Dr. Adelina Vorperian, MDTujunga, CA · No drug or device payments recorded (2025) ·
(818) 352-2111 Dr. Aye-aye Cheah, MDTulare, CA · No drug or device payments recorded (2025) ·
(558) 684-8703 Dr. Emmanuel Fabella, MDTulare, CA · No drug or device payments recorded (2025) ·
(559) 687-8200 Dr. Necetas Inez Gatmaitan-fabella, M.D.Tulare, CA · No drug or device payments recorded (2025) ·
(559) 687-8200 Dr. Nirmala Nagothu, MDTulare, CA · No drug or device payments recorded (2025) ·
(559) 386-4500 Dr. Raquel Ramos Garcia, MD Dr. Sophia SiddiquiTulare, CA · No drug or device payments recorded (2025) ·
(559) 686-4766 Dr. Syed NaqviTulare, CA · No drug or device payments recorded (2025) ·
(559) 684-8703 Dr. Andrew Deen, MDTurlock, CA · No drug or device payments recorded (2025) ·
(209) 667-4200 Dr. Arvind Behl, M.D.Turlock, CA · No drug or device payments recorded (2025) ·
(916) 212-2575 Dr. Charanbir Singh, MD, INC Dr. Cheryl Horsley, MDTurlock, CA · No drug or device payments recorded (2025) ·
(209) 632-3901 Dr. Chunfun Tao, MDTurlock, CA · No drug or device payments recorded (2025) ·
(209) 667-1718 Dr. Daniel Wenberg, MDTurlock, CA · No drug or device payments recorded (2025) ·
(209) 667-4200 Dr. Edward Holm, M.D.Turlock, CA · No drug or device payments recorded (2025) ·
(209) 634-7283 Dr. Fabiola Mieses Pun, MDTurlock, CA · $1,386 in drug and device payments (2025) · Telehealth ·
(209) 632-3909 Dr. Gurbir Atwal, MDTurlock, CA · No drug or device payments recorded (2025) ·
(916) 284-4688 Dr. Heather Deleon, DVMTurlock, CA · No drug or device payments recorded (2025) ·
(209) 668-1807 Dr. Inderpal Bal, MDTurlock, CA · No drug or device payments recorded (2025) ·
(209) 667-4200 Dr. Ishtleen Bhatia, M.D.Turlock, CA · $180 in drug and device payments (2025) · Telehealth ·
(209) 576-3525 Dr. James Robinson, M.D.Turlock, CA · $50 in drug and device payments (2025) · Telehealth ·
(209) 632-3901 Dr. Kian Kaveh, D.O.Turlock, CA · No drug or device payments recorded (2025) ·
(209) 575-4575 Dr. Mark Davenport, M.D.Turlock, CA · No drug or device payments recorded (2025) ·
(209) 634-7283 Dr. Nirbhai Hundal, M.D.Turlock, CA · $546 in drug and device payments (2025) · Telehealth ·
(209) 668-5454 Dr. Patrick Gamp, M.D.Turlock, CA · No drug or device payments recorded (2025) ·
(209) 664-5070 Dr. Preetinder Singh, M.D. Dr. Ronald Arakelian, M.D.Turlock, CA · $304 in drug and device payments (2025) ·
(209) 634-7283 Dr. Vernon Park, M.D.Turlock, CA · No drug or device payments recorded (2025) ·
(209) 667-1606 Dr. Wenbai Zhou, M.D.Turlock, CA · No drug or device payments recorded (2025) ·
(209) 576-3525 Dr. Anthony Lam, MDTustin, CA · $33,812 in drug and device payments (2025) · Telehealth ·
(949) 381-5800 Dr. Bernard Bennett, MDTustin, CA · No drug or device payments recorded (2025) ·
(714) 665-9890 Dr. Carl Selin, M.D.Tustin, CA · No drug or device payments recorded (2025) ·
(714) 838-5610 Dr. Chalat Rajaram, MDTustin, CA · No drug or device payments recorded (2025) ·
(714) 547-3346 Dr. Charlie Huang, D.O.Tustin, CA · No drug or device payments recorded (2025) · Telehealth ·
(714) 477-8320 Dr. Daniel Eichinger, DOTustin, CA · No drug or device payments recorded (2025) ·
(714) 505-7110 Dr. David Mcdonough, M.D. Dr. Deepika Lekawa, M.D.Tustin, CA · No drug or device payments recorded (2025) ·
(714) 838-8878 Dr. Don Oh, M.D.Tustin, CA · No drug or device payments recorded (2025) ·
(714) 222-3258 Dr. Drumil Bhatt, MDTustin, CA · $109 in drug and device payments (2025) · Telehealth ·
(714) 616-0506 Dr. Elizabeth Tsai, D.O.Tustin, CA · No drug or device payments recorded (2025) ·
(714) 665-1600 Dr. Eric Khau, MDTustin, CA · No drug or device payments recorded (2025) · Telehealth ·
(714) 477-8320 Dr. Grace Chang Broderick, M.D.Tustin, CA · No drug or device payments recorded (2025) ·
(888) 988-2800 Dr. Jacqueline Do, M.D.Tustin, CA · No drug or device payments recorded (2025) ·
(714) 505-7110 Dr. Jean Louis SelamTustin, CA · No drug or device payments recorded (2025) ·
(714) 734-7944 Dr. Jeremy Lam, M.D.Tustin, CA · No drug or device payments recorded (2025) · Telehealth ·
(714) 709-8000 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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