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Hospitalist in Irvine, California

Data updated monthly · Last refresh September 2026

41 Hospitalist providers practice in Irvine, and 24% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Hospitalist providers in Irvine

Listed alphabetically. 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. Akbar Nassiry, M.D., M.P.H.
Irvine, CA · No drug or device payments recorded (2025) · Telehealth · (949) 577-0047
Dr. Alexander Nguyen, D.O.
Irvine, CA · $613 in drug and device payments (2025) · (949) 923-3200
Dr. Ali Ahoui, MD
Irvine, CA · No drug or device payments recorded (2025) · (855) 206-6764
Dr. An Nguyen
Irvine, CA · $113 in drug and device payments (2025) · (888) 655-8463
Dr. Ata Soleimani Rahbar, MD
Irvine, CA · $255 in drug and device payments (2025) · Telehealth · (855) 206-6764
Dr. Brett Morenz, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (949) 610-7245
Dr. David Liao, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (949) 610-7245
Dr. Derrick Hong, M.D
Irvine, CA · No drug or device payments recorded (2025) · (949) 610-7245
Dr. Edmund Ray Pana, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (855) 206-6764
Dr. Ewa Kontny, M.D.
Irvine, CA · $179 in drug and device payments (2025) · (888) 655-8463
Dr. Ghazal Bahri, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (949) 671-8000
Dr. Helya Peyman, DO
Irvine, CA · $543 in drug and device payments (2025) · (800) 826-4673
Dr. Hiba Elzubeir
Irvine, CA · No drug or device payments recorded (2025) · (855) 206-6764
Dr. Hien Nguyen, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (949) 610-7245
Dr. John Chien, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (949) 610-7245
Dr. John Dieckhoff, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (949) 610-7245
Dr. Khanh Nguyen, MD
Irvine, CA · No drug or device payments recorded (2025) · (949) 923-3200
Dr. May Kam, D.O.
Irvine, CA · No drug or device payments recorded (2025) · (888) 655-9463
Dr. Meenu Kwatra, MD
Irvine, CA · No drug or device payments recorded (2025) · (949) 932-5000
Dr. Michael Caberto, D.O.
Irvine, CA · No drug or device payments recorded (2025) · (800) 826-4673
Dr. Michael Cho, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (949) 873-6181
Dr. Mohammad Sadi
Irvine, CA · No drug or device payments recorded (2025) · (800) 826-4673
Dr. Nam Kim, MD
Irvine, CA · No drug or device payments recorded (2025) · (949) 610-7245
Dr. Nima Taheri, MD
Irvine, CA · $261 in drug and device payments (2025) · (949) 236-7127
Dr. Ori Barashy
Irvine, CA · No drug or device payments recorded (2025) · (877) 742-4624
Dr. Preston Kim
Irvine, CA · No drug or device payments recorded (2025) · (877) 742-4624
Dr. Rasha Hindiyeh, M.D., M.B.A.
Irvine, CA · No drug or device payments recorded (2025) · (949) 610-7245
Dr. Reza Bashtar
Irvine, CA · $190 in drug and device payments (2025) · (858) 208-6550
Dr. Robert Cho, M.D.
Irvine, CA · $139 in drug and device payments (2025) · (949) 610-7245
Dr. Roshny Pattathu, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (949) 235-7243
Dr. Salman Ziaei, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (949) 873-6181
Dr. Scott Derkum, MD
Irvine, CA · No drug or device payments recorded (2025) · (949) 610-7245
Dr. Seon Song
Irvine, CA · No drug or device payments recorded (2025) · (949) 923-3200
Dr. Shreyas Patel, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (949) 671-8000
Dr. Siamak Nabili, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (855) 206-6764
Dr. Sophia Tran, DO
Irvine, CA · $125 in drug and device payments (2025) · (552) 066-7648
Dr. Susan Marron, MD
Irvine, CA · No drug or device payments recorded (2025) · (949) 923-3200
Dr. Tydus Thai
Irvine, CA · No drug or device payments recorded (2025) · (949) 671-8000
Dr. Veejay Geria, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (949) 610-7245
Dr. Whitney Nelson, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (949) 873-6181
Dr. Yi Tang, M.D.
Irvine, CA · $50 in drug and device payments (2025) · (949) 610-7245

Common questions

How many Hospitalist providers are in Irvine, California?

There are 41 Hospitalist providers with active NPI records practicing in Irvine, according to federal NPPES data refreshed monthly.

How many Hospitalist providers in Irvine received drug or device company payments?

10 of 41 (24%) 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 records 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.

All specialties in Irvine Hospitalist across California

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.