Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Karen Messier, LCSW

Clinical Social Worker in Middletown, CT · enumerated 2007 · practices at Community Health Center Inc.

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

National Provider Identifier

1831388735

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Registry record

Entity type Individual (Type 1)

Name Karen Messier

Credential LCSW

Sex Female

Practice address 675 Main St, Middletown, CT, 06457

Phone (860) 347-6971

Fax (860) 343-7379

Enumeration date Oct 17, 2007

Last updated in NPPES Apr 23, 2013

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 008159 (CT) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier	Type	State	Issuer
004236338	Medicaid	CT	-

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 Karen Messier practice?

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

What is the NPI number for Karen Messier?

The National Provider Identifier (NPI) for Karen Messier is 1831388735, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-04-23.