Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Shelagh Marie Lacey, L.C.S.W.

Mental Health Counselor in Arlington, VA · enumerated 2006.

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

National Provider Identifier

1437163870

Verified

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Registry record

Entity type Individual (Type 1)

Name Ms. Shelagh Marie Lacey

Credential L.C.S.W.

Sex Female

Practice address 3701 5th St S, #107, Arlington, VA, 22204

Phone (703) 207-7792

Fax (703) 289-2764

Enumeration date Jul 29, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 0904003747 (VA) 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
0904003747	Other	VA	L.C;S.W.LICENSE

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 is the NPI number for Shelagh Lacey?

The National Provider Identifier (NPI) for Shelagh Lacey is 1437163870, a Type 1 (individual) record in the CMS NPPES registry.

Where does Shelagh Lacey practice?

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

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