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William Clark Phd and Associates, Plc

Professional Counselor in Vienna, VA · enumerated 2007 · authorized official William Clark, Director.

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

National Provider Identifier

1255549861

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Registry record

Entity type Organization (Type 2)
Legal business name William Clark Phd and Associates, Plc
Practice address 2110 Gallows Rd # B, Vienna, VA, 22182
Phone (703) 506-8378
Fax (703) 893-1011
Enumeration date May 18, 2007
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 0810002215 (VA) Primary

Authorized official

Name William Clark
Title Director
Phone (703) 506-8378

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

Who is the authorized official for William Clark Phd and Associates, Plc?
NPPES lists William Clark (Director) as the authorized official for this organization.
What is the NPI number for William Clark Phd and Associates, Plc?
The NPI for William Clark Phd and Associates, Plc is 1255549861, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.