Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kathryn Bagley, MSW

Social Worker in New Canaan, CT · enumerated 2020.

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

National Provider Identifier

1619590999

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Registry record

Entity type Individual (Type 1)

Name Kathryn Bagley

Credential MSW

Sex Female

Practice address 468 South Ave, New Canaan, CT, 06840

Phone (203) 594-4575

Enumeration date May 21, 2020

Last updated in NPPES Mar 9, 2026

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 012858 (CT) 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 Kathryn Bagley practice?

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

What is the NPI number for Kathryn Bagley?

The National Provider Identifier (NPI) for Kathryn Bagley is 1619590999, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-09.