NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Hannah Marie Williams, Au.D.

Audiologist in Aberdeen, SD · enumerated 2024.

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

National Provider Identifier

1720836794

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Hannah Marie Williams
Credential Au.D.
Sex Female
Practice address 3001 6th Ave Se Ste 2, Aberdeen, SD, 57401
Fax (605) 725-4454
Enumeration date May 7, 2024
Last updated in NPPES Sep 29, 2026

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 1135-A (SD) 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 specialty is Hannah Williams?
Hannah Williams is registered in NPPES with the primary taxonomy of Audiologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-09-29.