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The Arc of Loudoun

Behavior Analyst in Leesburg, VA · enumerated 2017 · authorized official Kendra Mcdonald, Clinical Director of Paxton Advanta.

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

National Provider Identifier

1558896423

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Registry record

Entity type Organization (Type 2)
Legal business name The Arc of Loudoun
Other name <Unavail>
Practice address 601 Catoctin Cir Ne, Leesburg, VA, 20176
Phone (703) 777-1939
Fax (703) 777-1935
Enumeration date Apr 27, 2017
Last updated in NPPES Apr 27, 2017

Taxonomy & classification

103K00000X Behavior Analyst Behavioral Health & Social Service Providers Primary

Authorized official

Name Kendra Mcdonald
Title Clinical Director of Paxton Advanta
Phone (703) 777-1939

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 The Arc of Loudoun?
NPPES lists Kendra Mcdonald (Clinical Director of Paxton Advanta) as the authorized official for this organization.
What is the NPI number for The Arc of Loudoun?
The NPI for The Arc of Loudoun is 1558896423, 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 2017-04-27.