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About this NPIWhat this record shows.
NPI 1356781785 is registered to Aileen Chang O.D., a Optometrist practising at 1085 W El Camino Real in Sunnyvale, California. Optometrist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Aileen Chang O.D. has been enumerated in the National Provider Identifier (NPI) registry since 2013.
Provider type
Individual (Type 1)
Status
Active
Enumerated
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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.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Aileen Chang O.D. accepts. To confirm in-network status with your specific health plan, contact Aileen Chang O.D. directly at (408) 524-5900.
Frequently asked
Yes. NPI 1356781785 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 (408) 524-5900.
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. Aileen Chang O.D. is a Type-1 individual NPI.
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