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. Laura Collins, MDMill Valley, CA · No drug or device payments recorded (2025) · Telehealth ·
(888) 663-6331 Dr. Leslie Miya, MDMill Valley, CA · No drug or device payments recorded (2025) ·
(415) 381-7967 Dr. Audrey Ellis, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Bill Jue, MDMilpitas, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 945-2900 Dr. Binh Ton, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Christina Le, MDMilpitas, CA · $161 in drug and device payments (2025) ·
(650) 945-2900 Dr. Cindy Qian, MDMilpitas, CA · No drug or device payments recorded (2025) · Telehealth ·
(408) 858-5788 Dr. Curtis Mark, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Edward Hattler, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Geeta Singh, MDMilpitas, CA · $123 in drug and device payments (2025) ·
(408) 687-4989 Dr. Giao Tran, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Ha Le, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Hau Liu, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Hong Tao, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Jason Chang, MD, MSMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Jayashree Joshi, M.D.Milpitas, CA · $437 in drug and device payments (2025) · Telehealth ·
(408) 946-1878 Dr. Jennifer Doan, MDMilpitas, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 945-2900 Dr. Jennifer Yoo, DOMilpitas, CA · No drug or device payments recorded (2025) ·
(408) 945-2900 Dr. Jesus Edquilang, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(408) 945-2900 Dr. Kamal Hijazi, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Lauren Hidalgo, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Mayssoun Alhariri, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Nancy Mak, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Prachi Shukla Dixit, M.D.Milpitas, CA · No drug or device payments recorded (2025) ·
(408) 945-2933 Dr. Ravita Saluja, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Regan Yau, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Richard Luu, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Rick Phan, M.D.Milpitas, CA · No drug or device payments recorded (2025) · Telehealth ·
(408) 772-2288 Dr. Ronald Park, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Shashi Shravana, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(216) 798-6988 Dr. Sheila Chyu, MDMilpitas, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 945-2900 Dr. Shuang Wei, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Sraboni Banerjee, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Sridevi ChallaMilpitas, CA · No drug or device payments recorded (2025) · Telehealth ·
(408) 945-2900 Dr. Swe Aye, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Thao Pham, M.D.Milpitas, CA · $122 in drug and device payments (2025) ·
(408) 945-2933 Dr. Thuy Huynh, MDMilpitas, CA · $542 in drug and device payments (2025) ·
(408) 262-9992 Dr. Tina Cheng, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Toan Tran, M.D.Milpitas, CA · $132 in drug and device payments (2025) ·
(408) 956-9096 Dr. Tram Dao, MDMilpitas, CA · No drug or device payments recorded (2025) ·
(650) 945-2900 Dr. Trang Nguyen, M.D.Milpitas, CA · $472 in drug and device payments (2025) ·
(408) 263-9936 Dr. Vijay Thukral, M.D.Milpitas, CA · No drug or device payments recorded (2025) ·
(408) 258-7400 Dr. Wayne Chang, M.D.Milpitas, CA · No drug or device payments recorded (2025) ·
(408) 945-2933 Dr. Xiaoshan ChenMilpitas, CA · No drug or device payments recorded (2025) · Telehealth ·
(408) 945-2900 Dr. Ali Gamini, MD.Mission Hills, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 365-9531 Dr. Allen Pourmoussa, M.D.Mission Hills, CA · No drug or device payments recorded (2025) ·
(818) 365-9531 Dr. Amel Reguieg, M.D.Mission Hills, CA · $173 in drug and device payments (2025) ·
(877) 634-3196 Dr. Anand Chikyarappa, MDMission Hills, CA · No drug or device payments recorded (2025) ·
(818) 838-4587 Dr. Andrea Sanchez, M.D.Mission Hills, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 869-5752 Dr. Andrew Pourmoussa, M.D.Mission Hills, CA · No drug or device payments recorded (2025) ·
(818) 365-9351 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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