Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Hannah Willison, AU.D.

Audiologist in Bethesda, MD · enumerated 2015.

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

National Provider Identifier

1235515222

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Registry record

Entity type Individual (Type 1)

Name Hannah Willison

Credential AU.D.

Sex Female

Practice address 8901 Wisconsin Ave, Bethesda, MD, 20889

Phone (301) 400-1136

Enumeration date Aug 3, 2015

Last updated in NPPES Apr 17, 2024

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 01358 (MD) Primary

AUD · Doctor of Audiology: A licensed audiologist diagnosing and treating hearing and balance disorders. About the AUD credential

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 Hannah Willison?

The National Provider Identifier (NPI) for Hannah Willison is 1235515222, a Type 1 (individual) record in the CMS NPPES registry.

Where does Hannah Willison practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-17.