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

Lorraine Yeung

Optometrist in Pleasanton, CA · enumerated 2021.

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

National Provider Identifier

1982379780

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Registry record

Entity type Individual (Type 1)
Name Lorraine Yeung
Sex Female
Practice address Pleasanton, CA, 94588
Phone (925) 460-5000
Enumeration date Aug 12, 2021
Last updated in NPPES Oct 11, 2022

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 34992 (CA) Primary

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 is the NPI number for Lorraine Yeung?
The National Provider Identifier (NPI) for Lorraine Yeung is 1982379780, a Type 1 (individual) record in the CMS NPPES registry.
Where does Lorraine Yeung practice?
The practice location on file with NPPES is in Pleasanton, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-11.