Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Jeff Duane Knapp, D.C.
Chiropractor in Hillsdale, MI · enumerated 2008 · practices at Knapp Chiropractic Center Pllc.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1538325014
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 11873289 | Other | MI | CAQH |
| 9602183 | Other | MI | AETNA |
| 950C010720 | Other | MI | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| P00646397 | Other | MI | PALMETTO RAILROAD GBA |
| PENDING | Other | MI | CO-FINITY |
| 5259313 | Other | MI | CIGNA HEALTHCARE |
| 1174771745 | Other | MI | TYPE II NPI |
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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Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-05-23.