Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. John Martin Dengler, MD
Sleep Medicine (Psychiatry & Neurology) Physician in Johnson City, TN · enumerated 2006 · practices at Tri State Mountain Neurology Associates PC.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1396790085
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 026086900 | Other | - | BLACK LUNG COAL MINERS |
| 890687P | Medicaid | NC | - |
| 164888600 | Other | - | OWCP DEPT OF LABOR |
| 64913387 | Medicaid | KY | - |
| 0687P | Other | - | NC STATE EMPLOYEES |
| 3029803 | Other | TN | BCBS |
| 0140000774 | Other | - | CIGNA |
| 130014280 | Other | - | UNITED HEALTHCARE |
| 1292658 | Other | - | UMWA |
| 130014280 | Other | - | RR MEDICARE |
| E49454 | Other | - | GM RETIREES |
| Z06607 | Other | - | JOHN DEERE |
| 006154042 | Medicaid | VA | - |
| 602002820 | Other | - | PHP CARITEN |
| 10026049 | Other | - | PHP CARITEN TENNCARE |
| 3061273 | 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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Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-03-08.