Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

William Chang OD, Inc

Organization Optometrist · NPI 1255669057

William Chang OD, Inc is an Optometrist in San Gabriel, California. Licensed in California. Registered with an NPI since 2009.

Licensed in
CA
In the registry since
2009
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

417 S San Gabriel Blvd Ste B
San Gabriel, CA 91776-1967
Phone: (626) 291-2020
Fax: (626) 585-2905
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 13713 (CA)

Record details

NPI number1255669057
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official William Chang — Owner · (626) 291-2020
NPI enumeratedDecember 7, 2009
Last updated in NPPESSeptember 16, 2021
Certification dateSeptember 16, 2021
Mailing address417 S San Gabriel Blvd, Suite B, San Gabriel, CA 91776-1967

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