Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Joan D. Cahill, LCSW

Clinical Social Worker in Southington, CT · enumerated 2007.

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

National Provider Identifier

1083743488

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Registry record

Entity type Individual (Type 1)

Name Ms. Joan D. Cahill

Credential LCSW

Sex Female

Practice address Southington, CT, 06489

Phone (860) 628-3963

Fax (860) 628-3966

Enumeration date Mar 4, 2007

Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 000271 (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
42664	Other	CT	PID #
6257312	Other	CT	UHC PID #
P398863	Other	CT	PID OXFORD #
2212025	Other	CT	AETNA EAP PID #
4264841	Other	CT	PID MAGELLAN #
6257312	Other	CT	UBH PID #
0004264841	Other	CT	AETNA PID #
192907	Other	CT	COMPSYCHE PID #
073423	Other	CT	VALUE OPTIONS PID #
00387	Other	CT	EAP PID #
140000271CT02	Other	CT	PID #
2212025	Other	CT	AETNA
170616	Other	-	MHN PID #
426484	Other	CT	AETNA USHC
919201	Other	CT	PACIFIC CARE PID #

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.

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Frequently asked questions

What specialty is Joan Cahill?

Joan Cahill is registered in NPPES with the primary taxonomy of Clinical 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.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.