Doanh Nguyen, O.D.
NPI 1366895062 · Optometrist · Ventura, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Doanh Nguyen, O.D. is a Optometrist provider in Ventura, CA (NPI 1366895062).
Provider details
- NPI number
- 1366895062
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Female
- Sole proprietor
- No
- License
- OPT33526 TLG (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 tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
353 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Complete Exam of Visual System92014 | 138 | $138 |
| Established Patient Problem Focused Exam of Visual System92012 | 123 | $98 |
| Imaging of Retina92134 | 52 | $44 |
| Imaging of Optic Nerve92133 | 27 | $40 |
| New Patient Complete Exam of Visual System92004 | 13 | $163 |
Typical Medicare-allowed amounts for these services range $40–$163 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 105 | 35 |
| Timolol Maleate | 29 | 11 |
| Cyclosporinebrand: Restasis | 20 | 13 |
| Brimonidine Tartrate | 15 | — |
| Cyclosporine | 15 | — |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 13 | — |
| Erythromycin Basebrand: Erythromycin | 12 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$143 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
- 2016-07-18
- Last updated
- 2020-12-16
- Certified
- 2020-12-16
Frequently asked questions
- What is Doanh Nguyen's NPI number?
- Doanh Nguyen's National Provider Identifier (NPI) is 1366895062, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Doanh Nguyen's specialty?
- Doanh Nguyen is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Doanh Nguyen located?
- Doanh Nguyen's practice location on file with NPPES is 3085 Loma Vista Rd, Ventura, CA 93003-2916.
- What is Doanh Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Doanh Nguyen is (805) 648-3085.
- Does Doanh Nguyen accept Medicare?
- Doanh Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Doanh Nguyen's NPI active?
- Yes — Doanh Nguyen's NPI (1366895062) is active in the NPPES registry as of the last update on 2020-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.