Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alina Gusev

Behavior Analyst in Watertown, MA · enumerated 2013.

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

National Provider Identifier

1417386020

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Registry record

Entity type Individual (Type 1)

Name Alina Gusev

Sex Female

Practice address 51 Water St Ste 200, Watertown, MA, 02472

Phone (617) 923-7575

Enumeration date Nov 4, 2013

Last updated in NPPES Nov 4, 2013

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers 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.

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Frequently asked questions

What specialty is Alina Gusev?

Alina Gusev is registered in NPPES with the primary taxonomy of Behavior Analyst. 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 2013-11-04.