Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Barbara Exavier Clark

Social Worker in Tarrytown, NY · enumerated 2018.

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

National Provider Identifier

1164909065

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Registry record

Entity type Individual (Type 1)

Name Barbara Exavier Clark

Sex Female

Practice address 580 White Plains Rd, Tarrytown, NY, 10591

Phone (914) 345-5900

Enumeration date Jul 24, 2018

Last updated in NPPES Aug 7, 2018

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 103714-1 (NY) 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 Barbara Clark?

Barbara Clark 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 2018-08-07.