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. Mark Coleman, M.D.Palm Springs, CA · $22 in drug and device payments (2025) ·
(760) 322-5033 Dr. Meelad Mohammadi, M.DPalm Springs, CA · No drug or device payments recorded (2025) ·
(760) 561-7373 Dr. Michael Jardula, MDPalm Springs, CA · $391 in drug and device payments (2025) ·
(760) 323-8657 Dr. Mubashir Sheikh, MDPalm Springs, CA · No drug or device payments recorded (2025) ·
(760) 992-7152 Dr. Naira Sanoyan, M.D.Palm Springs, CA · No drug or device payments recorded (2025) ·
(760) 834-7949 Dr. Natalie Shemonsky, M.D.Palm Springs, CA · No drug or device payments recorded (2025) ·
(760) 323-8657 Dr. Neerja Kaul, MDPalm Springs, CA · $23 in drug and device payments (2025) ·
(412) 725-8342 Dr. Osmundo Saguil, MDPalm Springs, CA · $51 in drug and device payments (2025) · Telehealth ·
(760) 969-5262 Dr. Patricia Sotolongo, DOPalm Springs, CA · No drug or device payments recorded (2025) ·
(760) 992-7171 Dr. Paul Doherty, M.D.Palm Springs, CA · $15 in drug and device payments (2025) ·
(760) 323-8657 Dr. Pedram Shawd, MDPalm Springs, CA · No drug or device payments recorded (2025) ·
(818) 665-8687 Dr. Rami Elmufdi, MDPalm Springs, CA · No drug or device payments recorded (2025) ·
(760) 323-6511 Dr. Reema Khurram, MDPalm Springs, CA · No drug or device payments recorded (2025) · Telehealth ·
(760) 969-7770 Dr. Richard Ferreras, MDPalm Springs, CA · No drug or device payments recorded (2025) ·
(760) 992-7171 Dr. Robert Robbins, MDPalm Springs, CA · No drug or device payments recorded (2025) ·
(760) 202-4334 Dr. Santa Kerzuma, D.O.Palm Springs, CA · $50 in drug and device payments (2025) ·
(760) 323-6511 Dr. Sergii Khodakivskyi, MDPalm Springs, CA · No drug or device payments recorded (2025) ·
(951) 764-2863 Dr. Shayla VuPalm Springs, CA · No drug or device payments recorded (2025) ·
(760) 323-6511 Dr. Siddhartha Chatterjee, D.O.Palm Springs, CA · No drug or device payments recorded (2025) ·
(760) 323-6511 Dr. Thien Nguyen, DOPalm Springs, CA · No drug or device payments recorded (2025) ·
(760) 323-6511 Dr. Thomas Macdermaid, M.D.Palm Springs, CA · No drug or device payments recorded (2025) ·
(626) 484-9161 Dr. Vu PhanPalm Springs, CA · $150 in drug and device payments (2025) ·
(760) 323-6511 Dr. Yehonatan Sakian, M.D.Palm Springs, CA · $126 in drug and device payments (2025) ·
(760) 320-8814 Dr. Albert Lam, MDPalo Alto, CA · No drug or device payments recorded (2025) ·
(650) 853-2977 Dr. Albert Luo, M.D.Palo Alto, CA · No drug or device payments recorded (2025) ·
(650) 723-3300 Dr. Alexander Ungewickell, M.D., PH.D.Palo Alto, CA · No drug or device payments recorded (2025) ·
(650) 498-6000 Dr. Alexandra CoursPalo Alto, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Ami Laws, M.D.Palo Alto, CA · $14 in drug and device payments (2025) ·
(650) 325-3200 Dr. Amita Kalra, M.D.Palo Alto, CA · $39 in drug and device payments (2025) ·
(650) 736-5555 Dr. Amy Levin, MDPalo Alto, CA · No drug or device payments recorded (2025) ·
(650) 321-4121 Dr. Amy Yu, MDPalo Alto, CA · $199 in drug and device payments (2025) · Telehealth ·
(650) 853-2972 Dr. Ana RiveraPalo Alto, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 853-2977 Dr. Anita Gupta, MDPalo Alto, CA · $75 in drug and device payments (2025) ·
(650) 321-4121 Dr. Arlina Ahluwalia, MDPalo Alto, CA · No drug or device payments recorded (2025) ·
(650) 493-5000 Dr. Arthur Traum, M.D.Palo Alto, CA · No drug or device payments recorded (2025) ·
(650) 493-5000 Dr. Asha Nayak, M.D., PH.D.Palo Alto, CA · $95 in drug and device payments (2025) ·
(650) 493-5000 Dr. Audrey Chai, MDPalo Alto, CA · $125 in drug and device payments (2025) ·
(650) 723-4000 Dr. Bankole Asebiomo, MDPalo Alto, CA · No drug or device payments recorded (2025) ·
(229) 391-4100 Dr. Bari Rudikoff, M.D.Palo Alto, CA · No drug or device payments recorded (2025) ·
(650) 493-5000 Dr. Barry Eisenberg, MDPalo Alto, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 853-2977 Dr. Benjamin BergerPalo Alto, CA · No drug or device payments recorded (2025) ·
(650) 725-7061 Dr. Bradford Duncan, MDPalo Alto, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 321-4121 Dr. Bradford Rabin, MDPalo Alto, CA · No drug or device payments recorded (2025) ·
(650) 494-7004 Dr. Calvin Brenneman, MDPalo Alto, CA · No drug or device payments recorded (2025) ·
(650) 321-4121 Dr. Carlos Feder, M.D.Palo Alto, CA · No drug or device payments recorded (2025) ·
(650) 852-9010 Dr. Carl Winterstein, MDPalo Alto, CA · No drug or device payments recorded (2025) ·
(650) 326-6244 Dr. Cassandra Thanh, MDPalo Alto, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Charlotte Jacobs, M.D.Palo Alto, CA · No drug or device payments recorded (2025) ·
(650) 725-8738 Dr. Cheryl Shaffer, MDPalo Alto, CA · No drug or device payments recorded (2025) ·
(650) 853-2977 Dr. Christina Devine, M.D.Palo Alto, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 853-2977 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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