Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Gallagher Koster A Division of Arthur J. Gallagher Risk Management Ser

Supports Brokerage Agency in Quincy, MA · enumerated 2012 · authorized official Jonathan Lamoureux, Director, Customer Service & Enroll.

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

National Provider Identifier

1760746945

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Registry record

Entity type Organization (Type 2)

Legal business name Gallagher Koster A Division of Arthur J. Gallagher Risk Management Ser

Practice address 500 Victory Rd, Quincy, MA, 02171

Phone (800) 457-5599

Fax (617) 479-0860

Enumeration date Jul 2, 2012

Last updated in NPPES Jul 2, 2012

Taxonomy & classification

251X00000X Supports Brokerage Agency Agencies · License 1808912 (MA) Primary

Authorized official

Name Jonathan Lamoureux

Title Director, Customer Service & Enroll

Phone (617) 769-6426

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Who is the authorized official for Gallagher Koster A Division of Arthur J. Gallagher Risk Management Ser?

NPPES lists Jonathan Lamoureux (Director, Customer Service & Enroll) as the authorized official for this organization.

What is the NPI number for Gallagher Koster A Division of Arthur J. Gallagher Risk Management Ser?

The NPI for Gallagher Koster A Division of Arthur J. Gallagher Risk Management Ser is 1760746945, 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 2012-07-02.