Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Claudia Jean Chase, LCSW

Clinical Social Worker in Green Bay, WI · enumerated 2008.

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

National Provider Identifier

1588837868

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Registry record

Entity type Individual (Type 1)

Name Ms. Claudia Jean Chase

Credential LCSW

Sex Female

Practice address 1061 W Mason St, Green Bay, WI, 54303

Phone (920) 437-8256

Enumeration date Apr 8, 2008

Last updated in NPPES Nov 16, 2022

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 8251-123 (WI) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW 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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Claudia Chase's NPI record?

Cross-check NPI 1588837868 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1588837868 active?

Yes, as of the latest NPPES snapshot, NPI 1588837868 is active (record last updated 2022-11-16).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-11-16.