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About this NPIWhat this record shows.
NPI 1639067457 is registered to Calvin Chan OD, a Optometrist practising at 833 S Western Ave Ste 2 in Los Angeles, California. Optometrist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Calvin Chan OD has been enumerated in the National Provider Identifier (NPI) registry since 2025.
Provider type
Individual (Type 1)
Status
Active
Enumerated
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The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Calvin Chan OD accepts. To confirm in-network status with your specific health plan, contact Calvin Chan OD directly at (213) 384-1001.
Frequently asked
Yes. NPI 1639067457 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 (213) 384-1001.
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. Calvin Chan OD is a Type-1 individual NPI.
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