Dr. William Doan Nguyen OD
About this NPIWhat this record shows.
NPI 1689564486 is registered to Dr. William Doan Nguyen OD, a Low Vision Rehabilitation Optometrist practising at 33 W 42nd St in New York, New York. Low Vision Rehabilitation Optometrist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. William Doan Nguyen OD has been enumerated in the National Provider Identifier (NPI) registry since 2025.
Your brand here.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20251013000318OptometryNY
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Dr. William Doan Nguyen OD accepts. To confirm in-network status with your specific health plan, contact Dr. William Doan Nguyen OD directly at (212) 938-4000.
Frequently asked
Yes. NPI 1689564486 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Low Vision Rehabilitation Optometrist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (212) 938-4000.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Dr. William Doan Nguyen OD is a Type-1 individual NPI.