Mark W. Mason, MD
NPI 1811958887ActiveIndividual· Orthopaedic Surgery· Hershey, PA
Orthopaedic Surgery (MD) in Hershey, Pennsylvania, licensed in PA, with an NPI issued in March 2006. 325 Medicare patients in 2024, $112,858 paid; all of their 218 Part D prescriptions were generic.
Overview
| NPI | 1811958887 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 30, 2006 |
| Last updated in NPPES | Nov 2, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | MD064572L | PA |
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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 325 |
|---|---|
| Services billed | 497 across 33 procedure codes |
| Paid by Medicare | $112,858 |
Part D prescriptions in 2024
| Prescriptions (claims) | 218 · 226 30-day fills |
|---|---|
| Patients | 84 |
| Total drug cost | $1,635 |
| Generic share | 100% of claims |
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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All 36 orthopedic surgeons in Hershey · All orthopedic surgeons in Pennsylvania