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Gastrointestinal Medicine Associates

Specialist in Fairfax, VA · enumerated 2008 · authorized official Gretta Herbert, Office Administrator.

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

National Provider Identifier

1780851204

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Registry record

Entity type Organization (Type 2)
Legal business name Gastrointestinal Medicine Associates
Practice address 3700 Joseph Siewick Dr, 401, Fairfax, VA, 22033
Phone (703) 281-1023
Fax (703) 620-2331
Enumeration date May 14, 2008
Last updated in NPPES May 14, 2008

Taxonomy & classification

174400000X Specialist Other Service Providers · License 0637509 (VA) Primary

Authorized official

Name Gretta Herbert
Title Office Administrator
Phone (703) 281-1023

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

What is the NPI number for Gastrointestinal Medicine Associates?
The NPI for Gastrointestinal Medicine Associates is 1780851204, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Gastrointestinal Medicine Associates?
NPPES lists Gretta Herbert (Office Administrator) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-14.