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. Havi Rosen, MDLos Angeles, CA · $46 in drug and device payments (2025) ·
(310) 267-9643 Dr. Helen Shen, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 442-5100 Dr. Helen Xu, MDLos Angeles, CA · $50 in drug and device payments (2025) ·
(310) 267-9643 Dr. Ian Lawrence, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 319-4698 Dr. Isabel Lopez, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 267-9643 Dr. Jack Huebner, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 267-9643 Dr. Jae Lee, M.D.Los Angeles, CA · $18 in drug and device payments (2025) ·
(310) 967-1884 Dr. James Antaki, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 267-9643 Dr. James Samuelson, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 423-5252 Dr. Jamie YabunoLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 267-7849 Dr. Janette Zara, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 825-7375 Dr. Janvi TodaiLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 442-5100 Dr. Jason Napolitano, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 794-9718 Dr. Jason Williams, M.D.Los Angeles, CA · $791 in drug and device payments (2025) ·
(310) 319-4908 Dr. Jatin Chhabra, M.D.Los Angeles, CA · $85 in drug and device payments (2025) ·
(310) 267-9643 Dr. Jatinder Lachar, MBBSLos Angeles, CA · $122 in drug and device payments (2025) ·
(310) 267-9643 Dr. Jean Claude Guidi, DOLos Angeles, CA · No drug or device payments recorded (2025) · Telehealth ·
(323) 442-5100 Dr. Jeffrey Chung, M.D.Los Angeles, CA · $163 in drug and device payments (2025) ·
(310) 267-9643 Dr. Jeffrey Mayne, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 267-9643 Dr. Jessica Antillon, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 267-9643 Dr. Jin Sol Lee, MD, MPHLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 442-5100 Dr. Jiyun Lee, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 267-9643 Dr. John VoLos Angeles, CA · No drug or device payments recorded (2025) · Telehealth ·
(323) 442-5100 Dr. Joon Suh, D.O.Los Angeles, CA · No drug or device payments recorded (2025) ·
(949) 555-5555 Dr. Jose Negrete Manriquez, MD, MPPLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 267-9643 Dr. Josephine Haduong, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(323) 660-2450 Dr. Julia Boland, MDLos Angeles, CA · $536 in drug and device payments (2025) ·
(310) 267-9643 Dr. Julie MagorienLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 825-7375 Dr. Kang Wook Huh, DOLos Angeles, CA · No drug or device payments recorded (2025) ·
(213) 367-2001 Dr. Karen KenistonLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 267-7849 Dr. Karlen Ulubabyan, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 267-9643 Dr. Katherine FrisheLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 409-5507 Dr. Katherine Halper, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 267-9643 Dr. Kelly WangLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 442-5100 Dr. Kevin Bechler, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(323) 409-1000 Dr. Kevin Keller, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 267-9643 Dr. Kevin Shamash, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 267-9643 Dr. Khalid Namoos, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 267-9643 Dr. Khang Vo, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 442-5100 Dr. Kristine Posadas, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 442-5100 Dr. Kruti VoraLos Angeles, CA · $24 in drug and device payments (2025) ·
(310) 267-9643 Dr. Lina SafiLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 267-9643 Dr. Linda Czypinski, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 206-6766 Dr. Liza BuchbinderLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 267-9643 Dr. Loni TangLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 442-5100 Dr. Luis Gomez Villalobos, M.D.Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth ·
(800) 954-8000 Dr. Magdalena Ptaszny, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 267-9643 Dr. Mahmood Khaledy, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(323) 226-5261 Dr. Mangala Iyengar, MD/PHDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 442-5100 Dr. Margaret Mou, D.O.Los Angeles, CA · No drug or device payments recorded (2025) ·
(323) 660-2450 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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