Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Helen Barker

Social Worker in Siloam Springs, AR · enumerated 2025.

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

National Provider Identifier

1952272809

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Registry record

Entity type Individual (Type 1)

Name Mary Helen Barker

Sex Female

Practice address 710 S Holly St Ste 10, Siloam Springs, AR, 72761

Phone (479) 524-8618

Fax (479) 524-5197

Enumeration date Sep 15, 2025

Last updated in NPPES Sep 15, 2025

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License PLMSW (AR) 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

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 Mary Barker?

Mary Barker 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-15.