Amy Nguyen
NPI 1265022438 · Physician Assistant · Fullerton, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Amy Nguyen is a Physician Assistant provider in Fullerton, CA (NPI 1265022438).
Provider details
- NPI number
- 1265022438
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
5 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 40 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 1,419 | 244 |
| Oxycodone Hcl | 549 | 98 |
| Gabapentin | 489 | 129 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 412 | 78 |
| Tramadol Hcl | 361 | 73 |
| Pregabalin | 353 | 80 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$148 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-01-21
- Last updated
- 2021-09-28
- Certified
- 2021-09-28
Frequently asked questions
- What is Amy Nguyen's NPI number?
- Amy Nguyen's National Provider Identifier (NPI) is 1265022438, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Amy Nguyen's specialty?
- Amy Nguyen is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Amy Nguyen located?
- Amy Nguyen's practice location on file with NPPES is 100 N State College Blvd Ste H, Fullerton, CA 92831-4236.
- What is Amy Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Amy Nguyen is (148) 246-5657.
- Does Amy Nguyen accept Medicare?
- Amy Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Amy Nguyen's NPI active?
- Yes — Amy Nguyen's NPI (1265022438) is active in the NPPES registry as of the last update on 2021-09-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.