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Gresham Vision Source PC

Optometrist in Portland, OR · enumerated 2006 · authorized official Tuan Nguyen, Optometrist Owner.

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

National Provider Identifier

1346323367

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Registry record

Entity type Organization (Type 2)
Legal business name Gresham Vision Source PC
Practice address 929 Ne 181st Ave, Portland, OR, 97230
Phone (503) 669-1992
Fax (503) 618-8262
Enumeration date Oct 23, 2006
Last updated in NPPES Mar 2, 2018

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers · License 2987AT (OR) Primary

Authorized official

Name Tuan Nguyen
Title Optometrist Owner
Phone (503) 669-1992

Other identifiers

Identifier Type State Issuer
V07577 Medicaid OR -
117114 Other OR GROUP PIN

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.

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Frequently asked questions

What type of organization is Gresham Vision Source PC?
Gresham Vision Source PC is registered in NPPES as a Optometrist (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-02.