Hospitalists in California
Data updated monthly · Last refresh October 2026
3,110 Hospitalist providers practice in California, including 149 (5%) 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.
3,110providers
149telehealth
Los Angelestop city
Hospitalist by city in California
Choose a city to see providers there.
Hospitalist 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. Tanvir Khera, M.D.Monterey, CA · No drug or device payments recorded (2025) ·
(831) 622-2708 Dr. Alexander Friedman, D.O.Moreno Valley, CA · No drug or device payments recorded (2025) ·
(951) 486-4640 Dr. Ali Motabar, M.D.Moreno Valley, CA · No drug or device payments recorded (2025) ·
(951) 656-1500 Dr. Brandon Nathaniel, MDMoreno Valley, CA · No drug or device payments recorded (2025) ·
(951) 486-5700 Dr. Earl Ilano, MDMoreno Valley, CA · No drug or device payments recorded (2025) ·
(951) 486-4000 Dr. Hasan Ali, M.D.Moreno Valley, CA · $53 in drug and device payments (2025) ·
(951) 486-4000 Dr. Heidi Scalzitti, M.D.Moreno Valley, CA · No drug or device payments recorded (2025) ·
(951) 486-5700 Dr. Huy Au, M.D.Moreno Valley, CA · No drug or device payments recorded (2025) ·
(951) 486-5700 Dr. Ilho Kang, M.D.Moreno Valley, CA · No drug or device payments recorded (2025) ·
(951) 486-4000 Dr. Jay Hwang, MDMoreno Valley, CA · No drug or device payments recorded (2025) ·
(951) 486-4000 Dr. Kelly DowneyMoreno Valley, CA · No drug or device payments recorded (2025) ·
(951) 486-4000 Dr. Kevin Shiah, DO, MSMoreno Valley, CA · No drug or device payments recorded (2025) ·
(951) 486-5908 Dr. Mariam Gilmore, D.O.Moreno Valley, CA · No drug or device payments recorded (2025) ·
(951) 486-4000 Dr. Roya Darioosh, DOMoreno Valley, CA · No drug or device payments recorded (2025) ·
(951) 486-4000 Dr. Zebayel Baye, M.DMoreno Valley, CA · No drug or device payments recorded (2025) ·
(951) 486-5750 Dr. Alina Tan, M.D.Mountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7000 Dr. Benjamin Chang, MDMountain View, CA · $24 in drug and device payments (2025) ·
(650) 934-7000 Dr. Christine Roed, MDMountain View, CA · No drug or device payments recorded (2025) ·
(408) 739-6000 Dr. Cynthia WangMountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7808 Dr. David Reinert, D.O.Mountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7000 Dr. David Reitman, M.D.Mountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7000 Dr. David Tsai, M.D.Mountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7000 Dr. Diana Tsai, MDMountain View, CA · $20 in drug and device payments (2025) ·
(650) 934-7808 Dr. George Lau, M.D.Mountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7808 Dr. Grant Hochstein, M.D.Mountain View, CA · No drug or device payments recorded (2025) ·
(408) 739-6000 Dr. Gregory KatoMountain View, CA · No drug or device payments recorded (2025) ·
(408) 739-6000 Dr. Haitong Tai, MDMountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7808 Dr. Jacky Ng, DOMountain View, CA · No drug or device payments recorded (2025) ·
(650) 940-7000 Dr. Jane YiehMountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7808 Dr. Jessica Yoo, MDMountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7808 Dr. Jiwu Sun, MDMountain View, CA · No drug or device payments recorded (2025) ·
(831) 636-5711 Dr. Jose Fuentes, MDMountain View, CA · No drug or device payments recorded (2025) ·
(650) 404-8315 Dr. Joseph Li, MDMountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7808 Dr. Keith Posley, MDMountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7800 Dr. Kevin Poon, M.D.Mountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7000 Dr. Linda Huynh, MDMountain View, CA · No drug or device payments recorded (2025) ·
(408) 523-3267 Dr. Mahsa Esfahani, MDMountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7808 Dr. Mara Spare, MDMountain View, CA · No drug or device payments recorded (2025) ·
(650) 940-7000 Dr. Michael LimMountain View, CA · $72 in drug and device payments (2025) ·
(408) 739-6000 Dr. Nayan Sheth, MDMountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7000 Dr. Randy Liang, D.O.Mountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7000 Dr. Roland Orque, MDMountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7000 Dr. Ryan Collins, M.D.Mountain View, CA · No drug or device payments recorded (2025) ·
(650) 465-4133 Dr. Shreyas Mallur, M.D.Mountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7808 Dr. Sierra Elsken, MDMountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7808 Dr. Tho Ngo, MDMountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7808 Dr. Tina Nhan, D.O.Mountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7808 Dr. Vijaya Ram, M.D.Mountain View, CA · No drug or device payments recorded (2025) ·
(408) 739-6000 Dr. William LeMountain View, CA · No drug or device payments recorded (2025) ·
(650) 934-7808 Dr. Yen Nguyen, MDMountain View, CA · $15 in drug and device payments (2025) ·
(650) 934-7808 Common questions
How many Hospitalist providers are in California?There are 3,110 Hospitalist providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Hospitalist providers in California offer telehealth?Yes. 149 of the 3,110 Hospitalist providers in California (about 5%) report offering telehealth services in CMS data.
Which cities in California have the most Hospitalist providers?Los Angeles (231), San Diego (173), San Francisco (161) have the highest concentration of Hospitalist providers in California.
How many Hospitalist providers in California received drug or device company payments?722 of 3,110 Hospitalist providers in California (23%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
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 Hospitalists in California work in independent practices or large health systems?Among 2,469 Hospitalists in California enrolled in Medicare, 5% bill through a solo or small practice with fewer than 10 clinicians, 13% through a mid-size group of 10 to 99, and 82% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Hospitalists in California work at?According to CMS facility affiliation records, the California hospitals where the most Hospitalists hold privileges are Ronald Reagan UCLA Medical Center in Los Angeles; Cedars-Sinai Medical Center in Los Angeles; Santa Monica - UCLA Med Ctr & Orthopaedic Hospital in Santa Monica.
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