Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kathleen Hennessey, LICSW

Clinical Social Worker in Mansfield, MA · enumerated 2010.

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

National Provider Identifier

1477883171

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Registry record

Entity type Individual (Type 1)

Name Kathleen Hennessey

Credential LICSW

Sex Female

Practice address 200 Chauncy St Ste 113, Mansfield, MA, 02048

Phone (508) 784-1025

Fax (508) 552-9976

Enumeration date Jan 4, 2010

Last updated in NPPES Aug 26, 2021

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License ISW02319 (RI) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License SW18233 (FL) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 116809 (MA) 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 Kathleen Hennessey practice?

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

What is the NPI number for Kathleen Hennessey?

The National Provider Identifier (NPI) for Kathleen Hennessey is 1477883171, 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 2021-08-26.