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David Allen Griffenberg

Independent Duty Corpsman in Groton, CT · enumerated 2025.

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

National Provider Identifier

1215737564

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Registry record

Entity type Individual (Type 1)
Name David Allen Griffenberg
Sex Male
Practice address Po Box 159, Groton, CT, 06349
Phone (830) 929-8723
Enumeration date Mar 17, 2025
Last updated in NPPES Mar 17, 2025

Taxonomy & licenses

1710I1002X Independent Duty Corpsman Other Service Providers Primary

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 David Griffenberg?
The National Provider Identifier (NPI) for David Griffenberg is 1215737564, a Type 1 (individual) record in the CMS NPPES registry.
Where does David Griffenberg practice?
The practice location on file with NPPES is in Groton, CT. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-17.