Quick answers
- Does Andrew L. Nguyen accept Medicare assignment?
- Yes. Medicare's clinician data says Andrew L. Nguyen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Andrew L. Nguyen's NPI number?
- 1659021269. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Andrew L. Nguyen works
Medicare's Facility Affiliation Data lists Andrew L. Nguyen at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Good Samaritan Hospital Medical CenterWest Islip, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330286
- La Palma Intercommunity HospitalLa Palma, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 050580
- San Dimas Community HospitalSan Dimas, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050588
Practice locations
Addresses where Andrew L. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).
- 7901 Walker StLa Palma, CA 90623 (714) 670‑7400
Group practices
Medicare enrollment lists Andrew L. Nguyen as a member of this group (CMS data updated October 2, 2026).
- Orange County Emergency Medical Associates Inc12 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in La Palma
Clinicians with the same Medicare primary specialty in La Palma, CA — not a recommendation.
Other clinicians in Orange County Emergency Medical Associates Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York At Stony Brook, School Of Medicine |
| Graduation year | 2022 (4 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1659021269 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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