NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Dat Bui, O.D

Optometrist in Hayward, CA · enumerated 2015 · practices at Dr. Zhublawar Optometric Corporation.

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

National Provider Identifier

1164803094

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Registry record

Entity type Individual (Type 1)
Name Dr. Dat Bui
Credential O.D
Sex Male
Practice address Hayward, CA, 94541
Fax (510) 581-7368
Enumeration date Jun 16, 2015
Last updated in NPPES Mar 24, 2016

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 15227 (CA) Primary
OD — Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

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

How do I verify Dat Bui's NPI record?
Cross-check NPI 1164803094 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1164803094 active?
Yes — as of the latest NPPES snapshot, NPI 1164803094 is active (record last updated 2016-03-24).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-03-24.