Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John R Dimar II, MD
Orthopaedic Surgery of the Spine Physician in Louisville, KY · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1235192451
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1049631 | Other | KY | PASSPORT (UNIVERSITY ORTH |
| 2432608000 | Other | KY | PASSPORT ADVANTAGE (UNIVE |
| 3728038000 | Other | KY | PASSPORT ADVANTAGE- NORTON LEATHERMAN SPINE CENTER |
| 64243116 | Medicaid | KY | - |
| P00757242 | Other | KY | RAILROAD MEDICARE- NORTON LEATHERMAN SPINE CENTER |
| 1054521 | Other | KY | PASSPORT (SPINE INSTITUTE |
| 2433675000 | Other | KY | PASSPORT ADVANTAGE (SPINE |
| 000000049465 | Other | KY | ANTHEM (SPINE INSTITUTE) |
| 100373930 | Medicaid | IN | - |
| 163722400 | Other | KY | US DEPT OF LABOR |
| 000000049348 | Other | KY | ANTHEM (UNIVERSITY ORTHOP |
| 50024962 | Other | KY | PASSPORT- NORTON LEATHERMAN SPINE CENTER |
| N291921 | Other | IN | HARMONY |
| 000051983L | Other | KY | HUMANA- NORTON LEATHERMAN SPINE CENTER |
| 200007231 | Other | KY | RAILROAD MEDICARE (SPINE |
| 200031865 | Other | KY | RAILROAD MEDICARE (UNIVER |
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 2021-01-12.