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

Clifford Karl Chang OD Inc

Organization Optometrist · NPI 1558536482

Clifford Karl Chang OD Inc is an Optometrist in San Francisco, California. Licensed in California. Registered with an NPI since 2008.

Licensed in
CA
In the registry since
2008
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

929 Clay St 203
San Francisco, CA 94108-1556
Phone: (415) 982-1700
Fax: (415) 982-1750
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 4071 (CA)

Record details

NPI number1558536482
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Bradford Chang — Optometrist · (415) 982-1700
NPI enumeratedApril 22, 2008
Last updated in NPPESFebruary 15, 2023
Certification dateFebruary 15, 2023
Mailing address929 Clay St, 203, San Francisco, CA 94108-1556

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