Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Clayton Thomas Weaver

Behavior Analyst in Rock Hill, SC · enumerated 2025.

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

National Provider Identifier

1407711971

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Registry record

Entity type Individual (Type 1)

Name Clayton Thomas Weaver

Sex Male

Practice address 331 E Main St Ste 200, Rock Hill, SC, 29730

Phone (855) 832-6727

Enumeration date Dec 17, 2025

Last updated in NPPES Dec 17, 2025

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers 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 Clayton Weaver?

Clayton Weaver is registered in NPPES with the primary taxonomy of Behavior Analyst. 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 2025-12-17.