Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Joan M. O'Connor, D.C., LLC

Q: What is the NPI number for Joan M. O'Connor, D.C., LLC?

The NPI for Joan M. O'Connor, D.C., LLC is 1649510678, a Type 2 (organization) record in the CMS NPPES registry.

Chiropractor in Northampton, MA · enumerated 2013 · authorized official Joan O'Connor, Member.

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

National Provider Identifier

1649510678

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Registry record

Entity type Organization (Type 2)

Legal business name Joan M. O'Connor, D.C., LLC

Other name <Unavail>

Practice address 19 Center Ct, Suite 1a, Northampton, MA, 01060

Phone (413) 584-0900

Fax (802) 463-1991

Enumeration date Feb 28, 2013

Last updated in NPPES Feb 28, 2013

Taxonomy & classification

111N00000X Chiropractor Chiropractic Providers · License 3000 (MA) Primary

Authorized official

Name Joan O'Connor

Title Member

Phone (413) 584-0900

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 Joan M. O'Connor, D.C., LLC?

The NPI for Joan M. O'Connor, D.C., LLC is 1649510678, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Joan M. O'Connor, D.C., LLC?

NPPES lists Joan O'Connor (Member) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-02-28.