Provider Profile
Diem D. Nguyen, OD
Unclaimed ProfileAbout Dr. Nguyen
Diem D. Nguyen, OD is an optometrist based in Westminster, CA. The provider's National Provider Identifier (NPI) is 1215020490.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (714) 775-8080
- Email not available
Practice Locations
9567 BOLSA AVE
Westminster, CA 92683
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other optometrists at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 1
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Common questions
What is Dr. Nguyen's specialty?
Dr. Nguyen is an optometrist in Westminster, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Nguyen?
Dr. Nguyen is listed at 9567 Bolsa Ave, Westminster, CA 92683. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Nguyen?
The number on file is (714) 775-8080. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Nguyen's NPI number?
Dr. Nguyen's National Provider Identifier is 1215020490. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How long has Dr. Nguyen been practicing?
Dr. Nguyen has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Dr. Nguyen confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Nguyen. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.