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Donna J Hagberg, MD., LLC

Specialist in Greenwich, CT · enumerated 2007 · authorized official Donna Hagberg, Owner.

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

National Provider Identifier

1336328384

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Registry record

Entity type Organization (Type 2)
Legal business name Donna J Hagberg, MD., LLC
Practice address 1 Perryridge Rd, Greenwich, CT, 06830
Phone (203) 869-8353
Fax (203) 869-4004
Enumeration date Oct 26, 2007
Last updated in NPPES Oct 26, 2007

Taxonomy & classification

174400000X Specialist Other Service Providers · License 032695 (CT) Primary

Authorized official

Name Donna Hagberg
Title Owner
Phone (203) 869-8353

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 Donna J Hagberg, MD., LLC?
The NPI for Donna J Hagberg, MD., LLC is 1336328384, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Donna J Hagberg, MD., LLC?
NPPES lists Donna Hagberg (Owner) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-26.