Quick answers
- Which hospitals does Chi M. Nguyen work at?
- Medicare's official clinician data lists Chi M. Nguyen at 1 hospital: UCI Health-Orange. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Chi M. Nguyen see patients?
- Medicare's clinician data lists 1 practice location in Fountain Valley, CA. Call before your visit to confirm the address.
- What is Chi M. Nguyen's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Chi M. Nguyen accept Medicare assignment?
- Yes. Medicare's clinician data says Chi M. Nguyen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Chi M. Nguyen?
- (714) 966-7200, as listed in official Medicare / NPI Registry data.
- What is Chi M. Nguyen's NPI number?
- 1972569903. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Chi M. Nguyen works
Medicare's Facility Affiliation Data lists Chi M. Nguyen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- UCI Health-OrangeOrange, CA · Acute Care Hospital · CCN 050348
Practice locations
Addresses where Chi M. Nguyen is enrolled with Medicare (CMS data updated 2026-10-02).
- 17100 Euclid StFountain Valley, CA 92708 (714) 966‑7200
Group practices
Medicare enrollment lists Chi M. Nguyen as a member of this group (CMS data updated 2026-10-02).
- Fountain Valley Emergency Physicians, P.C.21 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Fountain Valley
Clinicians with the same Medicare primary specialty in Fountain Valley, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Geffen School Of Medicine |
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1972569903 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians