Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Nancy Bronstein

Nutrition Chiropractor in Great Barrington, MA · enumerated 2009 · authorized official Nancy Bronstein, Clinic Co-Director.

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

National Provider Identifier

1386973584

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Registry record

Entity type Organization (Type 2)

Legal business name Nancy Bronstein

Other name <Unavail>

Practice address 15 Mahaiwe St, Great Barrington, MA, 01230

Phone (413) 528-2948

Fax (413) 528-5404

Enumeration date Dec 17, 2009

Last updated in NPPES Jun 24, 2010

Taxonomy & classification

111NN1001X Nutrition Chiropractor Chiropractic Providers · License 430 (MA) Primary

Authorized official

Name Nancy Bronstein

Title Clinic Co-Director

Phone (413) 528-2948

Other identifiers

Identifier	Type	State	Issuer
1295721660	Other	MA	NPI
1427285337	Other	MA	NPI

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

Where is Nancy Bronstein located?

The practice location on file with NPPES is in Great Barrington, MA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2010-06-24. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Lawrence Bronstein Chiropractor · Great Barrington, MA NPI 1295721660 Nancy Bronstein Nutrition Chiropractor · Great Barrington, MA NPI 1427285337

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-06-24.