Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. John Seibel, MS
Audiologist in Milwaukee, WI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1427090315
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Registry record
Entity type Individual (Type 1)
Name Mr. John Seibel
Credential MS
Sex Male
Practice address 3534 N 94th St, Milwaukee, WI, 53222
Phone (414) 384-2000
Enumeration date Jun 12, 2006
Last updated in NPPES Jul 13, 2026
Taxonomy & licenses
231H00000X Audiologist Speech, Language and Hearing Service Providers · License 276-156 (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
Where does John Seibel practice?
The practice location on file with NPPES is in Milwaukee, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Seibel?
The National Provider Identifier (NPI) for John Seibel is 1427090315, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-13.