Mason Nelson
NPI 1275233728ActiveIndividual· Physician Assistant· Oconomowoc, WI
Physician Assistant in Oconomowoc, Wisconsin, licensed in WI, with an NPI issued in March 2023. 19 Medicare patients in 2024, $2,255 paid; nearly all of their 77 Part D prescriptions were generic (96%).
Overview
| NPI | 1275233728 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Mar 3, 2023 |
| Last updated in NPPES | Apr 16, 2026 |
| Certified by provider | Apr 16, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 7511 | WI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 19 |
|---|---|
| Services billed | 21 across 11 procedure codes |
| Paid by Medicare | $2,255 |
Part D prescriptions in 2024
| Prescriptions (claims) | 77 · 80 30-day fills |
|---|---|
| Patients | 60 |
| Total drug cost | $1,776 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 2023 |
|---|---|
| Medicare specialty | Physician Assistant |
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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