Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Catherine Giroux, Lcsw L.L.C

Q: What type of organization is Catherine Giroux, Lcsw L.L.C?

Catherine Giroux, Lcsw L.L.C is registered in NPPES as a Clinical Social Worker (its primary provider taxonomy).

Clinical Social Worker in Groton, CT · enumerated 2018 · authorized official Catherine Giroux, Sole Member.

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

National Provider Identifier

1659874394

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Registry record

Entity type Organization (Type 2)

Legal business name Catherine Giroux, Lcsw L.L.C

Practice address 10 Fort Hill Rd Lot 1, Groton, CT, 06340

Phone (860) 415-3710

Enumeration date Mar 8, 2018

Last updated in NPPES Mar 8, 2018

Taxonomy & classification

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 58.010056 (CO) Primary

Authorized official

Name Catherine Giroux

Title Sole Member

Phone (860) 886-3734

Other identifiers

Identifier	Type	State	Issuer
1003318411	Other	CT	INDIVIDUAL NPI

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 is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Catherine Giroux, Lcsw L.L.C?

Catherine Giroux, Lcsw L.L.C is registered in NPPES as a Clinical Social Worker (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-08.