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

Alyssa O'Brien

Pharmacist in Duluth, MN · enumerated 2026 · practices at Walgreen Co.

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

National Provider Identifier

1427988039

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Registry record

Entity type Individual (Type 1)
Name Alyssa O'Brien
Sex Female
Practice address Duluth, MN, 55807
Enumeration date May 23, 2026
Last updated in NPPES May 23, 2026

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

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 127001 (MN) 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 Alyssa O'Brien practice?
The practice location on file with NPPES is in Duluth, MN. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Alyssa O'Brien?
The National Provider Identifier (NPI) for Alyssa O'Brien is 1427988039, 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 2026-05-23.