Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum
Samuel L. Weir, O.D., P.C.
Optometrist in Warrenton, VA · enumerated 2007 · authorized official Samuel Weir, Optometrist.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1629280946
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Registry record
Taxonomy & classification
Authorized official
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0671590 | Other | VA | SAMUEL WEIR AETNA |
| 7304730 | Other | VA | AETNA GROUP NUMBER |
| 075587 | Other | VA | SAMUEL WEIR ANTHEM |
| 11505363 | Other | VA | SHANNON COLBOURNE UHC |
| 1619933280 | Other | VA | SAMUEL WEIR NPI |
| 2140911 | Other | VA | SHANNON COLBOURNE MAMSI |
| 1629280946 | Other | VA | GROUP NPI NUMBER |
| 187369 | Other | VA | SHANNON COLBOURNE ANTHEM |
| 231169 | Other | VA | SAMUEL WEIR MAMSI |
| 3991583 | Other | VA | SHANNON COLBOURNE AETNA |
| C09621 | Other | VA | MEDICARE GROUP NUMBER |
| 11230897 | Other | VA | SAMUEL WEIR UHC |
| 1689630246 | Other | VA | SHANNON COLBOURNE NPI |
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
What is a Type 2 NPI?
What type of organization is Samuel L. Weir, O.D., P.C.?
Providers at this address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-12.