Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Warren Gill Brewster, CRNA
Certified Registered Nurse Anesthetist in Chattanooga, TN · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1972584563
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 109587 | Medicaid | AL | - |
| 00629956D | Medicaid | GA | - |
| 8053512 | Medicaid | NC | - |
| P00770312 | Other | TN | RAILROAD MEDICARE |
| 4216563 | Other | TN | BLUE CROSS BLUE SHIELD TN |
| 1512401 | Medicaid | TN | - |
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 2010-08-04.