Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Allison Marie Nassoiy, LMSW

Social Worker in Niagara Falls, NY · enumerated 2008.

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

National Provider Identifier

1831341668

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Registry record

Entity type Individual (Type 1)

Name Ms. Allison Marie Nassoiy

Credential LMSW

Sex Female

Practice address 800 Main St, Niagara Falls, NY, 14301

Phone (716) 278-9640

Fax (716) 278-9641

Enumeration date Oct 10, 2008

Last updated in NPPES Feb 5, 2020

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 086324-1 (NY) 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

What specialty is Allison Nassoiy?

Allison Nassoiy is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-05.