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Janine L Chen, O.D.

Optometrist in Walnut Creek, CA · enumerated 2006 · practices at Kaiser Medical Offices.

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

National Provider Identifier

1851455778

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Registry record

Entity type Individual (Type 1)
Name Janine L Chen
Credential O.D.
Sex Female
Practice address 320 Lennon Ln, Shasta Building, Walnut Creek, CA, 94598
Phone (925) 906-2171
Enumeration date Dec 22, 2006
Last updated in NPPES Dec 30, 2021

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License T11464 (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 Janine Chen's NPI record?
Cross-check NPI 1851455778 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1851455778 active?
Yes, as of the latest NPPES snapshot, NPI 1851455778 is active (record last updated 2021-12-30).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-30.