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Anesthesiology in Santa Ana, California

Data updated monthly · Last refresh September 2026

33 Anesthesiology providers practice in Santa Ana, and 36% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Anesthesiology providers in Santa Ana

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. Adam Helberg, MD
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 953-3515
Dr. Adrian Ng
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 619-5383
Dr. Atef Rafla, M.D.
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 641-1111
Dr. Catherine Chung, MD
Santa Ana, CA · $120 in drug and device payments (2025) · (714) 953-3515
Dr. Clifton Lee
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 619-5391
Dr. Craig Flath
Santa Ana, CA · $124 in drug and device payments (2025) · (714) 619-5383
Dr. Dustin Morris, MD
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 619-5391
Dr. Gene Jang, M.D.
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 619-5383
Dr. Henry Wee, MD
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 636-0343
Dr. Jason Kim, DO
Santa Ana, CA · $120 in drug and device payments (2025) · (714) 619-5383
Dr. Jennifer Engstrom, MD
Santa Ana, CA · No drug or device payments recorded (2025) · (949) 417-1825
Dr. Jerimarie Pasiliao
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 619-5383
Dr. Ji-guang Jin, MD
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 953-3500
Dr. Jim Nguyen, M.D.
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 679-0852
Dr. Lawrence Ong, M.D., M.ENG.
Santa Ana, CA · $1,621 in drug and device payments (2025) · (800) 888-2186
Dr. Lowell Boehland, M.D.
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 636-0342
Dr. Manuel Saenz, MD
Santa Ana, CA · $851 in drug and device payments (2025) · (714) 754-5454
Dr. Matthew Tan, MD
Santa Ana, CA · $8,591 in drug and device payments (2025) · (714) 495-4050
Dr. Melisa Erick, MD
Santa Ana, CA · No drug or device payments recorded (2025) · (800) 883-7243
Dr. Omar Chowdhry, D.O.
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 953-3500
Dr. Robert Hoo, MD
Santa Ana, CA · $168 in drug and device payments (2025) · (714) 835-3555
Dr. Ronald Nguyen, MD
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 924-4830
Dr. Russell Taylor, MD
Santa Ana, CA · $17 in drug and device payments (2025) · (949) 981-5643
Dr. Stanley Hoang, M.D.
Santa Ana, CA · $31 in drug and device payments (2025) · (714) 619-5383
Dr. Steve Lee, M.D.
Santa Ana, CA · $252 in drug and device payments (2025) · (714) 347-1000
Dr. Steven Bui, D.O.
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 953-3500
Dr. Tan Le, M.D.
Santa Ana, CA · $194 in drug and device payments (2025) · (714) 953-3515
Dr. Thomas Lee, MD
Santa Ana, CA · $28 in drug and device payments (2025) · (714) 953-3500
Dr. Tsung Tsou, M.D.
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 953-3500
Dr. Vedavathy Vallurupalli, MD
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 619-5383
Dr. Willem Xu, MD
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 619-5391
Dr. Ying-kan Tien, MD
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 754-5590
Dr. Yuchen Liu
Santa Ana, CA · No drug or device payments recorded (2025) · (146) 195-3837

Common questions

How many Anesthesiology providers are in Santa Ana, California?

There are 33 Anesthesiology providers with active NPI records practicing in Santa Ana, according to federal NPPES data refreshed monthly.

How many Anesthesiology providers in Santa Ana received drug or device company payments?

12 of 33 (36%) 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 Santa Ana Anesthesiology across California

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.