Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. John Brett Dietze, MD
Neurological Surgery Physician in Texarkana, TX · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1588665319
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1G1885 | Other | TX | MEDICARE |
| 141100101 | Other | - | INDIGENT HEALTH CARE |
| 18796000000 | Other | AR | QUALCHOICE OF ARKANSAS |
| 98601 | Other | TX | COLLUM & CARNEY CLINIC |
| 98601 | Other | AR | BLUE CROSS |
| 179117500 | Other | - | US DEPT OF LABOR |
| 1871793307 | Other | TX | CIGNA DME |
| 8A0896 | Other | TX | BLUE CROSS |
| 140006859 | Other | TX | RAILROAD MEDICARE |
| 141100101 | Medicaid | TX | - |
| 142238001 | Medicaid | AR | - |
| 200023040A | Medicaid | OK | - |
| 5575000001 | Other | TX | CIGNA GOVERNMENT SERVICES |
| MDK2152 | Other | TX | WORKERS' COMPENSATION |
| 98601 | Other | - | FIRST PYRAMID LIFE |
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 2021-04-28.