Gregory P. Duff, M.D.
NPI 1952374290ActiveIndividual· Orthopaedic Surgery· Silverdale, WA
Orthopaedic Surgery (M.D.) in Silverdale, Washington, trained at Harvard Medical School (class of 1992). 239 Medicare patients in 2024, $127,108 paid; nearly all of their 263 Part D prescriptions were generic (99%).
Overview
| NPI | 1952374290 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 8, 2006 |
| Last updated in NPPES | Dec 2, 2020 |
| Certified by provider | Dec 2, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | MD00034439 | WA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Orthopedic Surgery (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 239 |
|---|---|
| Services billed | 1,245 across 75 procedure codes |
| Paid by Medicare | $127,108 |
Part D prescriptions in 2024
| Prescriptions (claims) | 263 · 264 30-day fills |
|---|---|
| Patients | 85 |
| Total drug cost | $2,990 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Orthopedic Surgery |
| Secondary specialties | Sports Medicine |
Medical group
- Franciscan Medical GroupTacoma, WA · 1,421 clinicians
Hospital affiliations
- Olympic Medical CenterPort Angeles, WA
- St Michael Medical CenterSilverdale, WA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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