Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Katelyn Therrian, MSW

Social Worker in Plattsburgh, NY · enumerated 2020.

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

National Provider Identifier

1851904627

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Registry record

Entity type Individual (Type 1)

Name Katelyn Therrian

Credential MSW

Sex Female

Practice address 22 Us Oval Ste 100, Plattsburgh, NY, 12903

Phone (516) 563-8000

Enumeration date Aug 31, 2020

Last updated in NPPES Aug 31, 2020

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License P106339 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Katelyn Therrian practice?

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

What is the NPI number for Katelyn Therrian?

The National Provider Identifier (NPI) for Katelyn Therrian is 1851904627, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-31.