Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Matthew Johnson, LCSW

Clinical Social Worker in Slidell, LA · enumerated 2006.

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

National Provider Identifier

1316953797

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Registry record

Entity type Individual (Type 1)

Name Matthew Johnson

Credential LCSW

Sex Male

Practice address 2331 Carey St, Slidell, LA, 70458

Phone (985) 646-6406

Fax (985) 646-6460

Enumeration date Jul 31, 2006

Last updated in NPPES Aug 30, 2023

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 5531 (LA) Primary

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

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

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.

What specialty is Matthew Johnson?

Matthew Johnson 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-30.