Denise Nguyen
NPI 1457977662 · Optometrist · Westminster, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Denise Nguyen is a Optometrist provider in Westminster, CA (NPI 1457977662).
Provider details
- NPI number
- 1457977662
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 34545 (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
6 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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 130 | 39 |
| Cyclosporine | 73 | 23 |
| Cyclosporinebrand: Restasis | 49 | 17 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 21 | — |
| Timolol Maleate | 14 | — |
| Brimonidine Tartrate/Timololbrand: Combigan | 12 | — |
| Bimatoprostbrand: Lumigan | 11 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$52 across 2 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
- 2020-06-23
- Last updated
- 2024-03-06
- Certified
- 2024-03-06
Frequently asked questions
- What is Denise Nguyen's NPI number?
- Denise Nguyen's National Provider Identifier (NPI) is 1457977662, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Denise Nguyen's specialty?
- Denise Nguyen is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Denise Nguyen located?
- Denise Nguyen's practice location on file with NPPES is 9600 Bolsa Ave Ste C, Westminster, CA 92683-5949.
- What is Denise Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Denise Nguyen is (714) 775-7045.
- Does Denise Nguyen accept Medicare?
- Denise Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Denise Nguyen's NPI active?
- Yes — Denise Nguyen's NPI (1457977662) is active in the NPPES registry as of the last update on 2024-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.