Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Heather Harris Hay, AUD
Audiologist in Knoxville, TN · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1972365971
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Registry record
Entity type Individual (Type 1)
Name Heather Harris Hay
Credential AUD
Sex Female
Practice address 1932 Alcoa Hwy Ste G50, Knoxville, TN, 37920
Phone (865) 305-9569
Enumeration date Jan 25, 2024
Last updated in NPPES Jan 25, 2024
Taxonomy & licenses
231H00000X Audiologist Speech, Language and Hearing Service Providers · License 0000002126 (TN) 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.
Frequently asked questions
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.
What specialty is Heather Hay?
Heather Hay 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.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-25.