Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Douglas Wister Ligon, M.D.
Emergency Medical Services (Emergency Medicine) Physician in Erin, TN · enumerated 2006 · practices at Erin Family Medicine, Pllc.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1376579730
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 810676663 | Other | TN | TAX IDENTIFACTION |
| MD0000006383 | Other | TN | MEDICAL LICENSE NUMBER |
| P00282547 | Other | TN | RAILROAD MEDICARE |
| 3148023 | Medicaid | TN | - |
| 4113788 | Other | TN | BCBS/TENNCARE SELECT |
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 2017-01-25.