Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Allergy & Asthma Center of Massachusetts, LLC

Allergy & Immunology Physician in Chestnut Hill, MA · enumerated 2015 · authorized official Daniel Steinberg, Physician.

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

National Provider Identifier

1558738450

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Registry record

Entity type Organization (Type 2)

Legal business name Allergy & Asthma Center of Massachusetts, LLC

Parent organization Allergy & Asthma Center of Massachusetts, PC

Practice address 25 Boylston St, Suite L02, Chestnut Hill, MA, 02467

Phone (617) 232-1690

Fax (617) 739-7082

Enumeration date Aug 26, 2015

Last updated in NPPES Aug 26, 2015

Taxonomy & classification

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License 60529 (MA) Primary

Authorized official

Name Daniel Steinberg

Title Physician

Phone (617) 232-1690

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

What is the NPI number for Allergy & Asthma Center of Massachusetts, LLC?

The NPI for Allergy & Asthma Center of Massachusetts, LLC is 1558738450, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Allergy & Asthma Center of Massachusetts, LLC?

NPPES lists Daniel Steinberg (Physician) 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 2015-08-26.