Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Brett Terill Duffey Sr., OT L
Occupational Therapist in Clemmons, NC · enumerated 2005 · practices at Mast Drug Co Inc.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1336126382
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 10378967 | Other | NC | NC VOCATIONAL REHAB |
| 11-3670557 | Other | NC | CIGNA HEALTHCARE |
| 805848 | Other | NC | PAARTNERS |
| E2197 | Other | NC | MEDCOST PREFERRED |
| 0517000 | Other | NC | UNITED HEALTH CARE |
| 10378967 | Other | NC | NC VOCATIONAL REHABILITAT |
| 135VA | Other | NC | BCBSNC |
| 64-01026 | Other | NC | SECURE HORIZONS |
| 805848 | Other | NC | PARTNERS |
| 691687 | Other | NC | ACN GROUP |
| BA1238 | Other | NC | MEDCOST |
| 007517787 | Other | NC | AETNA |
| 136VA | Other | NC | BCBSNC |
| 7301751 | Medicaid | NC | - |
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 2008-05-19.