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. Allan Kurtz, D.O.Woodland Hills, CA · $1,716 in drug and device payments (2025) · Telehealth ·
(818) 346-1440 Dr. Anthony Hou, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Anthony Nguyen, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 234-2077 Dr. Ashima Shenoy, M.D.Woodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Avetis Boyadjian, M.D.Woodland Hills, CA · No drug or device payments recorded (2025) ·
(888) 515-3500 Dr. Barbara Scott, M.D.Woodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-3006 Dr. Benjamin Hashem, MDWoodland Hills, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 719-2000 Dr. Bennett Sloan, MDWoodland Hills, CA · $18 in drug and device payments (2025) ·
(818) 719-2000 Dr. Brandy Williams, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Carole Taira, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Catherine Farahani, M.D.Woodland Hills, CA · No drug or device payments recorded (2025) · Telehealth ·
(888) 515-3500 Dr. Cheryl Mondheim, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Cynthia Velez, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Damini Saxena, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(833) 574-2273 Dr. David Gelmont, M.D.Woodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 914-9628 Dr. David Levin, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Donald Hennings, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Donald Moy, M.D.Woodland Hills, CA · $33 in drug and device payments (2025) ·
(818) 719-2000 Dr. Dushyant Viswanathan, M.D.Woodland Hills, CA · No drug or device payments recorded (2025) · Telehealth ·
(888) 250-2246 Dr. Eduard Osmonov, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Ellen Masse, M.D.Woodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 800-8808 Dr. Emin Kuliev, MDWoodland Hills, CA · $178 in drug and device payments (2025) · Telehealth ·
(818) 719-2000 Dr. Eric Tennyson, DOWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Eva Vertelney, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Evert-jan Slingenberg, M.D.Woodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Gary Reyzin, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Gayle Randall, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 591-7600 Dr. Gregory Kelman, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Gregory Rubin, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Hanna Yoshino, M.D.Woodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Harvey Negoro, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Hubert Lee, M.D.Woodland Hills, CA · No drug or device payments recorded (2025) ·
(310) 803-7460 Dr. Igor Shlifer, D.O.Woodland Hills, CA · $467 in drug and device payments (2025) · Telehealth ·
(818) 346-4300 Dr. Janice Spinner, M.D.Woodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 876-1390 Dr. Jean Lee Kim, MDWoodland Hills, CA · $100 in drug and device payments (2025) ·
(818) 719-2000 Dr. Jeffrey Shukhman, D.O.Woodland Hills, CA · $98 in drug and device payments (2025) · Telehealth ·
(818) 466-7700 Dr. Jeffrey WangWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2706 Dr. Jennifer Juhn, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Jessica Mehrabi, DOWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Jo-anne Teoh, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. John Mcclintick, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Jonathan Crawford, MDWoodland Hills, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 719-2000 Dr. Joni Jordan, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Joseph Kopecky, MDWoodland Hills, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 719-2000 Dr. Julie Clarke, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2456 Dr. Katrin Youdim, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Kelly Dawson, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Kevin Nishimori, MDWoodland Hills, CA · No drug or device payments recorded (2025) ·
(818) 719-2000 Dr. Kourosh Laaly, DOWoodland Hills, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 719-2000 Dr. Leila Kazerooni, MDWoodland Hills, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 610-0292 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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