Tien Johnny Cao-Nguyen OD
About this NPIWhat this record shows.
NPI 1477121713 is registered to Tien Johnny Cao-Nguyen OD, a Optometrist practising at 477 N El Camino Real Ste C202 in Encinitas, California. Optometrist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Tien Johnny Cao-Nguyen OD has been enumerated in the National Provider Identifier (NPI) registry since 2021.
Beyond the registryWhat this record adds.
It is enrolled in Medicare, linking to 1 PECOS enrollment record (with a public Medicare Enrollment ID) sourced from CMS, which the NPPES registry does not list. Within the directory it is one of 11,495 Optometrist providers on file in California.
Source: CMS NPPES and PECOS public files. snapshot, refreshed monthly.
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
- I20230818001690OptometryCA
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 Tien Johnny Cao-Nguyen OD accepts. To confirm in-network status with your specific health plan, contact Tien Johnny Cao-Nguyen OD directly at (760) 631-3500.
Frequently asked
Yes. NPI 1477121713 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
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 (760) 631-3500.
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. Tien Johnny Cao-Nguyen OD is a Type-1 individual NPI.
As of the latest monthly CMS NPPES snapshot, 11,495 Optometrist providers are registered in California, and Tien Johnny Cao-Nguyen OD is one of them. The figure refreshes each month from the federal source.