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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Claudia Irwin, BA

Case Manager/Care Coordinator in Hayward, CA · enumerated 2007 · practices at Tiburcio Vasquez Health Center.Inc.

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

National Provider Identifier

1528253556

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Registry record

Entity type Individual (Type 1)
Name Claudia Irwin
Credential BA
Sex Female
Practice address 29800 Mission Blvd, Hayward, CA, 94544
Phone (510) 471-5880
Fax (510) 782-4678
Enumeration date Sep 12, 2007
Last updated in NPPES Sep 12, 2007

Taxonomy & licenses

171M00000X Case Manager/Care Coordinator Other Service Providers 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

How do I verify Claudia Irwin's NPI record?
Cross-check NPI 1528253556 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1528253556 active?
Yes, as of the latest NPPES snapshot, NPI 1528253556 is active (record last updated 2007-09-12).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-09-12.