Mark Steele Hartley, DMD
Mark Steele Hartley is a General Practice Dentistry provider (Dentist) practicing in Pendleton, OR, registered in the NPPES registry with NPI 1477470458 since 2026. The credential DMD stands for Doctor of Medicine in Dentistry.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1477470458 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mark Steele Hartley |
| Credential | DMD |
| Sex | Male |
| Practice address | 116 S MAIN ST STE 1, Pendleton, OR, 97801 |
| Phone | 541-276-4867 |
| Enumeration date | 2026-07-01 |
| Last updated in NPPES | 2026-07-01 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 1223G0001X | General Practice Dentistry | Primary | D12377 | OR |
DMD — Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential
Copy-ready billing details
Provider: Mark Hartley, DMD NPI: 1477470458 Taxonomy: 1223G0001X (General Practice Dentistry) Address: 116 S MAIN ST STE 1, Pendleton, OR, 97801
Verify this record
Cross-check NPI 1477470458 against the authoritative CMS record: view Mark Steele Hartley on the official NPPES registry .
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. Read the full guide or validate an NPI number.
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-07-01.