Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Tracy Lynn Klein, AUD, CCC-A
Audiologist in Flagstaff, AZ · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1528898236
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Registry record
Entity type Individual (Type 1)
Name Dr. Tracy Lynn Klein
Credential AUD, CCC-A
Sex Female
Practice address 2501 N 4th St Ste 22, Flagstaff, AZ, 86004
Phone (928) 821-1527
Enumeration date Aug 6, 2024
Last updated in NPPES Aug 6, 2024
Taxonomy & licenses
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
What specialty is Tracy Klein?
Tracy Klein 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 2024-08-06.