Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Caitlin Madden, LGSW

Social Worker in Hagerstown, MD · enumerated 2016.

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

National Provider Identifier

1235583188

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Registry record

Entity type Individual (Type 1)

Name Caitlin Madden

Credential LGSW

Sex Female

Practice address 13215 Brook Lane, Hagerstown, MD, 21742

Phone (301) 733-0330

Fax (301) 733-4038

Enumeration date Apr 18, 2016

Last updated in NPPES Apr 18, 2016

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 18343 (MD) Primary

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 Caitlin Madden?

Caitlin Madden 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 2016-04-18.