Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Hannah Mierjeski

Registered Nurse in Winchester, VA · enumerated 2024.

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

National Provider Identifier

1538907480

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Registry record

Entity type Individual (Type 1)

Name Hannah Mierjeski

Sex Female

Practice address 2913 Valley Ave, Winchester, VA, 22601

Phone (540) 536-8000

Enumeration date Jul 16, 2024

Last updated in NPPES Jul 16, 2024

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 0001287381 (VA) 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

What is the NPI number for Hannah Mierjeski?

The National Provider Identifier (NPI) for Hannah Mierjeski is 1538907480, a Type 1 (individual) record in the CMS NPPES registry.

Where does Hannah Mierjeski practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-16.