NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dr Patricia Chang Optometric Group Inc.

Optometrist in Millbrae, CA · enumerated 2007 · authorized official Patricia Chang, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1861544975

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Dr Patricia Chang Optometric Group Inc.
Other name <Unavail>
Practice address 305 Broadway, Millbrae, CA, 94030
Phone (650) 697-2475
Fax (650) 692-7154
Enumeration date Jan 17, 2007
Last updated in NPPES Mar 18, 2011

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers · License 1080 (CA) Primary

Authorized official

Name Patricia Chang
Title President
Phone (650) 697-2475

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Who is the authorized official for Dr Patricia Chang Optometric Group Inc.?
NPPES lists Patricia Chang (President) as the authorized official for this organization.
What is the NPI number for Dr Patricia Chang Optometric Group Inc.?
The NPI for Dr Patricia Chang Optometric Group Inc. is 1861544975, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-03-18.