Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Gregory Kettelhake, AU.D.
Audiologist in Auburn, CA · enumerated 2015.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1366824690
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Registry record
Entity type Individual (Type 1)
Name Gregory Kettelhake
Credential AU.D.
Sex Male
Practice address 11990 Heritage Oak Pl Ste 11, Auburn, CA, 95603
Phone (530) 823-7532
Enumeration date Jun 23, 2015
Last updated in NPPES Jan 3, 2022
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 is the NPI number for Gregory Kettelhake?
The National Provider Identifier (NPI) for Gregory Kettelhake is 1366824690, a Type 1 (individual) record in the CMS NPPES registry.
Where does Gregory Kettelhake practice?
The practice location on file with NPPES is in Auburn, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-03.