Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Matthew John Abbott, LCSW

Social Worker in West Haven, CT · enumerated 2006.

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

National Provider Identifier

1790734986

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Registry record

Entity type Individual (Type 1)

Name Mr. Matthew John Abbott

Credential LCSW

Sex Male

Practice address 950 Campbell Ave, West Haven, CT, 06516

Phone (203) 932-5711

Enumeration date May 8, 2006

Last updated in NPPES Feb 9, 2026

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 006593 (CT) Secondary

104100000X Social Worker Behavioral Health & Social Service Providers · License 006593 (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

What specialty is Matthew Abbott?

Matthew Abbott is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-09.