Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cassidy F Hartshorn, LICSW,LCSW

Clinical Social Worker in Lewiston, ID · enumerated 2021.

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

National Provider Identifier

1780354738

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Registry record

Entity type Individual (Type 1)

Name Cassidy F Hartshorn

Credential LICSW,LCSW

Sex Female

Practice address 1203 Idaho St, Lewiston, ID, 83501

Phone (509) 444-8200

Enumeration date Sep 20, 2021

Last updated in NPPES Mar 24, 2025

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License SE203781 (ID) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License LW61519180 (WA) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 1271753 (ID) 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

What is the NPI number for Cassidy Hartshorn?

The National Provider Identifier (NPI) for Cassidy Hartshorn is 1780354738, a Type 1 (individual) record in the CMS NPPES registry.

Where does Cassidy Hartshorn practice?

The practice location on file with NPPES is in Lewiston, ID. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-24.