Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Paul C. Nau, M.D.
Diagnostic Radiology Physician in Goodlettsville, TN · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1538109103
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1600681 | Other | - | UNITED HEALTHCARE OF TN |
| 3042216 | Medicaid | TN | - |
| 3135886 | Other | TN | BCBS |
| 4076946 | Other | TN | BCBS |
| 3031176 | Other | TN | BCBS |
| 1509294 | Medicaid | TN | - |
| 4201002 | Other | TN | BCBS TN |
| 64918147 | Other | KY | KY MEDICAID |
| 1993750 | Other | TN | CIGNA |
| 300108661 | Other | TN | RAILROAD MEDICARE |
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
Is NPI 1538109103 active?
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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 2009-03-26.