Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Casey Walsh, LCSW

Social Worker in Seattle, WA · enumerated 2008 · practices at Premise Health of Washington Medical PC.

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

National Provider Identifier

1871748517

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Registry record

Entity type Individual (Type 1)

Name Casey Walsh

Credential LCSW

Sex Female

Practice address 1100 Fairview Ave N, Seattle, WA, 98109

Phone (206) 667-3717

Enumeration date Nov 21, 2008

Last updated in NPPES Aug 7, 2026

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License LW60896549 (WA) Primary

104100000X Social Worker Behavioral Health & Social Service Providers · License LCSW108470 (CA) Secondary

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

Is NPI 1871748517 active?

Yes, as of the latest NPPES snapshot, NPI 1871748517 is active (record last updated 2026-08-07).

How do I verify Casey Walsh's NPI record?

Cross-check NPI 1871748517 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-08-07.