Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John A Mortensen
Audiologist in West Allis, WI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1407802564
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Registry record
Entity type Individual (Type 1)
Name John A Mortensen
Sex Male
Practice address 2255 S 108th St, West Allis, WI, 53227
Phone (414) 774-4200
Fax (414) 774-6828
Enumeration date May 26, 2006
Last updated in NPPES May 23, 2014
Taxonomy & licenses
231H00000X Audiologist Speech, Language and Hearing Service Providers · License 365-156 (WI) Primary
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 John Mortensen?
The National Provider Identifier (NPI) for John Mortensen is 1407802564, a Type 1 (individual) record in the CMS NPPES registry.
Where does John Mortensen practice?
The practice location on file with NPPES is in West Allis, WI. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Mortensen Audiology Clinics LLC Audiologist-Hearing Aid Fitter · West Allis, WI NPI 1700838406 Chiropractic Company - West Allis Ltd Chiropractor · West Allis, WI NPI 1528122611 Meagan Kaska Audiologist · West Allis, WI NPI 1922393453 Noah Schulz Chiropractor · West Allis, WI NPI 1396510731 Reed Bogrand Chiropractor · West Allis, WI NPI 1093584617
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-05-23.