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

Mrs. Alyson Lynn Halas, LCSW

Clinical Social Worker in Danbury, CT · enumerated 2010.

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

National Provider Identifier

1710218979

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Registry record

Entity type Individual (Type 1)

Name Mrs. Alyson Lynn Halas

Credential LCSW

Sex Female

Practice address Danbury, CT, 06811

Phone (203) 313-3478

Enumeration date Jan 27, 2010

Last updated in NPPES May 6, 2015

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 007962 (CT) Primary

104100000X Social Worker Behavioral Health & Social Service Providers · License 075828 (NY) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 079561 (NY) Secondary

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
008049530	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

Is NPI 1710218979 active?

Yes, as of the latest NPPES snapshot, NPI 1710218979 is active (record last updated 2015-05-06).

How do I verify Alyson Halas's NPI record?

Cross-check NPI 1710218979 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-05-06.