HealthcareDiscovery.AI / Doctors / California / Santa Ana / Adult Medicine

Adult Medicine in Santa Ana, California

Data updated monthly · Last refresh September 2026

11 Adult Medicine providers practice in Santa Ana. Listings are drawn from federal public records and are not endorsements.

Adult Medicine 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. Alan Barton, M.D.
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 731-0536
Dr. Don Smith, M.D.
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 547-5801
Dr. Felicia Young, D.O.
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 834-8396
Dr. J Cassidy, M.D.
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 662-0322
Dr. Karee Chrysovergis, FNP
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 556-7246
Dr. Lucio Loza, M.D.
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 830-6695
Dr. Marian Bareh, M.D.
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 967-4766
Dr. Ming Chen, D.O.
Santa Ana, CA · $79 in drug and device payments (2025) · (888) 988-2800
Dr. Neal Schwartz, D.O.
Santa Ana, CA · $41 in drug and device payments (2025) · (714) 352-2911
Dr. Roger Wang, M.D.
Santa Ana, CA · No drug or device payments recorded (2025) · (714) 835-1818
Dr. Sarah Page, D.O.
Santa Ana, CA · $83 in drug and device payments (2025) · (714) 967-4766

Common questions

How many Adult Medicine providers are in Santa Ana, California?

There are 11 Adult Medicine providers with active NPI records practicing in Santa Ana, 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 Santa Ana Adult 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.