Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Sarah Roggenbuck
Hearing Instrument Specialist in Bad Axe, MI · enumerated 2009 · practices at Hearing Services of Bad Axe.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1891938478
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 540C20026 | Other | MI | BLUE CROSS BLUE SHIELD |
| 540C21072 | Other | MI | BLUE CROSS BLUE SHIELD OF MICHIGAN |
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.
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Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-22.