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About this NPIWhat this record shows.
NPI 1811823818 is registered to Ryan Chang OD, a Optometrist practising at 3610 Sheldon Dr in Pearland, Texas. Optometrist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Ryan Chang OD has been enumerated in the National Provider Identifier (NPI) registry since 2026.
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 Ryan Chang OD accepts. To confirm in-network status with your specific health plan, contact Ryan Chang OD directly at (281) 818-1677.
Frequently asked
Yes. NPI 1811823818 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 (281) 818-1677.
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. Ryan Chang OD is a Type-1 individual NPI.
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