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. Wadih Hawat, D.O.Moreno Valley, CA · $550 in drug and device payments (2025) ·
(800) 464-4000 Dr. William Ochoa, MDMoreno Valley, CA · No drug or device payments recorded (2025) ·
(951) 486-4000 Dr. William Perez Morales, MDMoreno Valley, CA · No drug or device payments recorded (2025) ·
(951) 486-4000 Dr. Yasaman Safarpour, MDMoreno Valley, CA · $100 in drug and device payments (2025) ·
(951) 486-5909 Dr. Yuliana Soe, M.DMoreno Valley, CA · No drug or device payments recorded (2025) ·
(626) 551-8231 Dr. Yusur Alsalihi, DOMoreno Valley, CA · No drug or device payments recorded (2025) ·
(951) 486-4000 Dr. Anitha Raghavan, M.DMorgan Hill, CA · No drug or device payments recorded (2025) · Telehealth ·
(408) 779-9422 Dr. Devang Shah, M.D.Morgan Hill, CA · No drug or device payments recorded (2025) · Telehealth ·
(408) 776-3900 Dr. Kiran Mathew, MDMorgan Hill, CA · No drug or device payments recorded (2025) · Telehealth ·
(408) 720-6680 Dr. Nimisha Shah, M.D.Morgan Hill, CA · No drug or device payments recorded (2025) · Telehealth ·
(408) 776-3900 Dr. Sayuj Paudel, M.D.Morgan Hill, CA · $400 in drug and device payments (2025) · Telehealth ·
(408) 866-4000 Dr. Smruti Nalawadi, M.DMorgan Hill, CA · $224 in drug and device payments (2025) · Telehealth ·
(408) 356-8400 Dr. William Joyce, MDMorgan Hill, CA · No drug or device payments recorded (2025) ·
(408) 776-8040 Dr. Garry Kolb, MDMorro Bay, CA · No drug or device payments recorded (2025) ·
(805) 772-2707 Dr. Laura Slaughter, MDMorro Bay, CA · $40 in drug and device payments (2025) ·
(805) 772-7313 Dr. Monika Gottlieb, M.D.Morro Bay, CA · No drug or device payments recorded (2025) ·
(805) 242-1141 Dr. Jeaniesar Caluag, M.D.Moss Beach, CA · No drug or device payments recorded (2025) ·
(415) 615-2534 Dr. Nancy Harris, MDMoss Beach, CA · $28 in drug and device payments (2025) ·
(650) 440-9121 Dr. Abdolreza Nassehzadeh Tabriz, MDMountain View, CA · No drug or device payments recorded (2025) ·
(650) 967-7007 Dr. Abren Belay, M.D.Mountain View, CA · No drug or device payments recorded (2025) ·
(650) 988-3271 Dr. Alfred Lerner, MDMountain View, CA · $64 in drug and device payments (2025) · Telehealth ·
(650) 903-3000 Dr. Anandhi Sudhagaran, MDMountain View, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 934-7808 Dr. Andrew Fiore, DOMountain View, CA · $140 in drug and device payments (2025) ·
(650) 940-7000 Dr. Anna Liess, MDMountain View, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 934-7808 Dr. Anna Zhang, MDMountain View, CA · No drug or device payments recorded (2025) ·
(650) 903-3000 Dr. Antoinette Rose, M.DMountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7808 Dr. Arleen Chang, MDMountain View, CA · No drug or device payments recorded (2025) ·
(650) 903-3000 Dr. Barbara Campbell, M.D.Mountain View, CA · No drug or device payments recorded (2025) ·
(650) 965-3243 Dr. Bilegsaikhan BalkhaaMountain View, CA · No drug or device payments recorded (2025) ·
(650) 844-8556 Dr. Caroline Stratz, M.D.Mountain View, CA · $26 in drug and device payments (2025) ·
(650) 969-6000 Dr. Catherine Trejo, MDMountain View, CA · No drug or device payments recorded (2025) ·
(650) 965-2515 Dr. Chandan Saw, DOMountain View, CA · $752 in drug and device payments (2025) · Telehealth ·
(650) 969-0445 Dr. Chanjuan Zhong, MDMountain View, CA · $267 in drug and device payments (2025) · Telehealth ·
(650) 934-7808 Dr. Chihyi Lin, D.O.Mountain View, CA · No drug or device payments recorded (2025) ·
(650) 962-4370 Dr. Cindy Tran, MDMountain View, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 934-7808 Dr. Clarence Allegakoen, M.D.Mountain View, CA · No drug or device payments recorded (2025) ·
(650) 793-4207 Dr. Dang Lin, M.D.Mountain View, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 934-7808 Dr. David Kaufman, MDMountain View, CA · $70 in drug and device payments (2025) ·
(650) 691-8633 Dr. David Lewis, M.D.Mountain View, CA · No drug or device payments recorded (2025) ·
(650) 967-8890 Dr. Dean Cummings, MDMountain View, CA · No drug or device payments recorded (2025) ·
(650) 965-3243 Dr. Douglas Souvignier, M.D.Mountain View, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 934-7808 Dr. Elaheh Firoozi, M.D.Mountain View, CA · No drug or device payments recorded (2025) ·
(650) 940-7000 Dr. Elizabeth Vilardo, MDMountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7808 Dr. Fariha Ashraf, MDMountain View, CA · $461 in drug and device payments (2025) · Telehealth ·
(408) 495-5770 Dr. Feihong Ding, M.D.Mountain View, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 934-7808 Dr. Fengdan Wang, M.D.Mountain View, CA · $642 in drug and device payments (2025) · Telehealth ·
(650) 934-7808 Dr. Francis Garrett, MDMountain View, CA · $583 in drug and device payments (2025) · Telehealth ·
(650) 934-7800 Dr. Galina Balon, MDMountain View, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 934-7808 Dr. Gayathri Thiru, M.DMountain View, CA · $445 in drug and device payments (2025) · Telehealth ·
(408) 900-8077 Dr. Geeta Krishnapriyan, MDMountain View, CA · $310 in drug and device payments (2025) · Telehealth ·
(408) 736-6841 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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