Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Ariana Marie Cusack, M.S., BCBA

Behavior Analyst in Southbury, CT · enumerated 2017.

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

National Provider Identifier

1821507229

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Registry record

Entity type Individual (Type 1)

Name Mrs. Ariana Marie Cusack

Credential M.S., BCBA

Sex Female

Practice address 385 Main St S, Southbury, CT, 06488

Phone (203) 693-4543

Enumeration date Sep 28, 2017

Last updated in NPPES Sep 28, 2017

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1-17-27651 (CT) Primary

Other identifiers

Identifier	Type	State	Issuer
1-17-27651	Medicaid	CT	-

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

Is NPI 1821507229 active?

Yes, as of the latest NPPES snapshot, NPI 1821507229 is active (record last updated 2017-09-28).

How do I verify Ariana Cusack's NPI record?

Cross-check NPI 1821507229 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 2017-09-28.