Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Brian Alexander Williams, MD
Radiation Oncology Physician in Bardstown, KY · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1528086873
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 201011980 | Medicaid | IN | - |
| P00924152 | Other | KY | RAILROAD MEDICARE (LKO) |
| 000000704223 | Other | KY | ANTHEM BLUE CROSS BLUE SHIELD |
| 1183433 | Other | KY | CIGNA - LKO |
| 667296 | Other | KY | STERLING HEALTH - LKO |
| 667296 | Other | KY | STERLING HEALTH |
| 50031976 | Other | KY | PASSPORT HEALTH PLAN |
| P00440327 | Other | KY | RAILROAD MEDICARE |
| 000000498681 | Other | KY | CIGNA FKO PROV. # |
| 64102882 | Medicaid | KY | - |
| 7576431 | Other | KY | AETNA |
| 000000498685 | Other | KY | CIGNA DKO PROV. # |
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 2026-06-24.