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Flinton Callahan II M.D. & Associates Inc

Specialist in Leesburg, VA · enumerated 2007 · authorized official Flinton Callahan, President.

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

National Provider Identifier

1144419177

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Registry record

Entity type Organization (Type 2)
Legal business name Flinton Callahan II M.D. & Associates Inc
Practice address 20 Davis Ave Sw, Leesburg, VA, 20175
Phone (703) 777-1244
Fax (540) 338-9137
Enumeration date Oct 16, 2007
Last updated in NPPES Oct 16, 2007

Taxonomy & classification

174400000X Specialist Other Service Providers · License 0101021979 (VA) Primary

Authorized official

Name Flinton Callahan
Title President
Phone (703) 777-1244

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 Flinton Callahan II M.D. & Associates Inc?
NPPES lists Flinton Callahan (President) as the authorized official for this organization.
What is the NPI number for Flinton Callahan II M.D. & Associates Inc?
The NPI for Flinton Callahan II M.D. & Associates Inc is 1144419177, 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 2007-10-16.