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

Allison Marie Duffy

Registered Nurse in Hartselle, AL · enumerated 2026.

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

National Provider Identifier

1396692927

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Registry record

Entity type Individual (Type 1)

Name Allison Marie Duffy

Sex Female

Practice address Hartselle, AL, 35640

Phone (256) 251-1443

Enumeration date Mar 12, 2026

Last updated in NPPES Mar 12, 2026

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

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 1-198477 (AL) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Allison Duffy practice?

The practice location on file with NPPES is in Hartselle, AL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Allison Duffy?

The National Provider Identifier (NPI) for Allison Duffy is 1396692927, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-12.