Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Brian Andrew Zelesky, LCSW

Clinical Social Worker in Glastonbury, CT · enumerated 2008.

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

National Provider Identifier

1780856831

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Registry record

Entity type Individual (Type 1)

Name Mr. Brian Andrew Zelesky

Credential LCSW

Sex Male

Practice address 25 Concord St, Glastonbury, CT, 06033

Phone (860) 538-3302

Enumeration date Mar 28, 2008

Last updated in NPPES Sep 9, 2009

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 006434 (CT) 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

Where does Brian Zelesky practice?

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

What is the NPI number for Brian Zelesky?

The National Provider Identifier (NPI) for Brian Zelesky is 1780856831, 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 2009-09-09.