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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Katherine Lora Blackstone Allen, LICSW, MHP, CMHS

Clinical Social Worker in Longview, WA · enumerated 2009.

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

National Provider Identifier

1477785541

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Registry record

Entity type Individual (Type 1)
Name Katherine Lora Blackstone Allen
Credential LICSW, MHP, CMHS
Sex Female
Practice address 910 16th Ave Ste 120, Longview, WA, 98632
Phone (360) 200-5419
Fax (360) 200-6736
Enumeration date Aug 21, 2009
Last updated in NPPES Sep 18, 2023

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License LW60424218 (WA) Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License LW60424218 (WA) Primary

Other identifiers

Identifier Type State Issuer
2122309 Medicaid WA -

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

Is NPI 1477785541 active?
Yes, as of the latest NPPES snapshot, NPI 1477785541 is active (record last updated 2023-09-18).
How do I verify Katherine Allen's NPI record?
Cross-check NPI 1477785541 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 2023-09-18.