NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Michelle Francine Callahan

Clinical Social Worker in Needham, MA · enumerated 2025.

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

National Provider Identifier

1326857723

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Registry record

Entity type Individual (Type 1)
Name Michelle Francine Callahan
Sex Female
Practice address Needham, MA, 02492
Enumeration date Jan 1, 2025
Last updated in NPPES Jan 1, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 214691 (MA) Primary

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

Where does Michelle Callahan practice?
The practice location on file with NPPES is in Needham, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Michelle Callahan?
The National Provider Identifier (NPI) for Michelle Callahan is 1326857723, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-01.