Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Williamson Treatment Center, LLC

Methadone Clinic in Williamson, WV · enumerated 2017 · authorized official Brian Farley, Vp & Secretary.

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

National Provider Identifier

1689189490

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Williamson Treatment Center, LLC

Parent organization Acadia Healthcare Company, Inc.

Practice address 1609 W 3rd Ave, Williamson, WV, 25661

Phone (304) 235-0026

Fax (304) 235-0028

Enumeration date Dec 4, 2017

Last updated in NPPES Oct 2, 2024

Taxonomy & classification

261QM2800X Methadone Clinic Ambulatory Health Care Facilities Primary

Authorized official

Name Brian Farley

Title Vp & Secretary

Phone (615) 861-6000

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Williamson Treatment Center, LLC?

Williamson Treatment Center, LLC is registered in NPPES as a Methadone Clinic (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-02.