Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. William L Shirrell, M.D.
Urology Physician in Indianapolis, IN · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1356355093
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 200288740 | Other | IN | MEDICAID GROUP NUMBER |
| 100339550 | Medicaid | IN | - |
| 000000351011 | Other | IN | ANTHEM PIN NUMBER |
| P00200150 | Other | IN | MEDICARE RAILROAD |
| 100194370 | Other | IN | MEDICAID GROUP NUMBER |
| 1487680518 | Other | IN | GROUP 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 2021-03-17.