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Emergency Medicine in Irvine, California

Data updated monthly · Last refresh September 2026

18 Emergency Medicine providers practice in Irvine. Listings are drawn from federal public records and are not endorsements.

Emergency Medicine 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. Ahmed Elrefaie, M.D.
Irvine, CA · $30 in drug and device payments (2025) · (949) 517-3010
Dr. Amanda Moy, M.D.
Irvine, CA · $43 in drug and device payments (2025) · (949) 679-1906
Dr. Brian Laakaniemi, M.D.
Irvine, CA · $172 in drug and device payments (2025) · (225) 358-3940
Dr. Cassondra Majestic, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (949) 517-3010
Dr. Cong Ly
Irvine, CA · No drug or device payments recorded (2025) · (714) 644-4000
Dr. Ethan Kunstadt, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (949) 764-4624
Dr. James Shen, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (949) 517-3010
Dr. Joseph Torres
Irvine, CA · No drug or device payments recorded (2025) · (833) 574-2273
Dr. Joshua Romanu, MD
Irvine, CA · No drug or device payments recorded (2025) · (949) 764-4624
Dr. Karin Reed, M.D.
Irvine, CA · $74 in drug and device payments (2025) · (949) 517-3010
Dr. Keith Rosing, MD
Irvine, CA · No drug or device payments recorded (2025) · (949) 759-8161
Dr. Nicholas Bove, MD
Irvine, CA · $116 in drug and device payments (2025) · (949) 764-4624
Dr. Peter Nguyen, D.O.
Irvine, CA · $163 in drug and device payments (2025) · Telehealth · (888) 333-4673
Dr. Ryan Hurd, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (949) 932-2800
Dr. Stephen Gau, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (800) 826-4673
Dr. Tara O'connell, MD
Irvine, CA · $39 in drug and device payments (2025) · (949) 451-6006
Dr. Thomas Grotsky, MD
Irvine, CA · No drug or device payments recorded (2025) · (949) 364-3826
Dr. Vinh Tonthat
Irvine, CA · No drug or device payments recorded (2025) · (949) 517-3010

Common questions

How many Emergency Medicine providers are in Irvine, California?

There are 18 Emergency Medicine providers with active NPI records practicing in Irvine, according to federal NPPES data refreshed monthly.

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 Emergency Medicine 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.