Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor
Michael J Welther, MD
Family Medicine Physician in Arlington, VT · enumerated 2006 · practices at Michael Welther.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1164596367
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Registry record
Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 8000108 | Other | - | LADIES FIRST |
| WELT00007333 | Other | - | VT BLUE CROSS |
| 020009326 | Other | - | RAILROAD MEDICARE |
| 10003016 | Other | - | CDPHP |
| WEVT9138 | Medicaid | VT | - |
| 414900 | Other | - | CIGNA |
| 0473830 | Medicaid | VT | - |
| 08286 | Other | - | MVP |
| 0009138 | Other | - | TRICARE |
| 030310607 | Other | - | EMPLOYEE BENEFIT |
| WEVT9138 | Other | - | GREAT WEST |
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.
Frequently asked questions
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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 2019-01-15.