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Western Massachusetts Allergy LLC

Allergy & Immunology Physician in Springfield, MA · enumerated 2023 · authorized official David Robertson, Owner.

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

National Provider Identifier

1538863774

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Registry record

Entity type Organization (Type 2)
Legal business name Western Massachusetts Allergy LLC
Practice address 90 Carew St Unit B, Springfield, MA, 01104
Phone (413) 707-6460
Fax (413) 707-6440
Enumeration date Mar 30, 2023
Last updated in NPPES Jan 25, 2026

Taxonomy & classification

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name David Robertson
Title Owner
Phone (413) 707-6460

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 Western Massachusetts Allergy LLC?
The NPI for Western Massachusetts Allergy LLC is 1538863774, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Western Massachusetts Allergy LLC?
NPPES lists David Robertson (Owner) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-25.