Catherine Nguyen, PA-C
NPI 1326316076 · Physician Assistant · Westminster, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Nguyen, PA-C is a Physician Assistant provider in Westminster, CA (NPI 1326316076).
Provider details
- NPI number
- 1326316076
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- A69222 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
14 yrs in NPPES registry
- Profile completeness33% of score
100% 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 · 151 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 526 | 202 |
| Amlodipine Besylate | 519 | 199 |
| Losartan Potassium | 345 | 133 |
| Metformin Hcl | 299 | 110 |
| Rosuvastatin Calcium | 271 | 103 |
| Empagliflozinbrand: Jardiance | 252 | 60 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,155 across 51 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
- 2011-12-09
- Last updated
- 2023-11-01
- Certified
- 2023-11-01
Frequently asked questions
- What is Catherine Nguyen's NPI number?
- Catherine Nguyen's National Provider Identifier (NPI) is 1326316076, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Nguyen's specialty?
- Catherine Nguyen is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Catherine Nguyen located?
- Catherine Nguyen's practice location on file with NPPES is 13671 Beach Blvd Ste a, Westminster, CA 92683-3200.
- What is Catherine Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Catherine Nguyen is (714) 467-4321.
- Does Catherine Nguyen accept Medicare?
- Catherine Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Nguyen's NPI active?
- Yes — Catherine Nguyen's NPI (1326316076) is active in the NPPES registry as of the last update on 2023-11-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.