Shannon M. Nelson, P.A.
NPI 1326075078ActiveIndividual· Physician Assistant· Mequon, WI
Physician Assistant (P.A.) with Madison Medical Affiliates Inc, practicing in Mequon, Wisconsin. Mostly services rather than prescriptions: Medicare paid $19,172 for 290 patients in 2024, with only 25 Part D claims. Urogen Pharma, Inc. was the largest of 7 companies reporting payments in 2025, $320.20 in all, mostly food and beverage. Lists Ascension Columbia St Marys Hospital Milwaukee and 1 other hospital as hospital affiliations.
Overview
| NPI | 1326075078 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | P.A. |
| Sole proprietor | No |
| NPI issued | Jun 27, 2006 |
| Last updated in NPPES | Feb 24, 2021 |
| Certified by provider | Feb 24, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 1516 | WI |
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 - Physician Assistant (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 290 |
|---|---|
| Services billed | 413 across 9 procedure codes |
| Paid by Medicare | $19,172 |
Part D prescriptions in 2024
| Prescriptions (claims) | 25 · 53 30-day fills |
|---|---|
| Patients | 12 |
| Total drug cost | $3,643 |
| Generic share | 68% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Madison Medical Affiliates IncMilwaukee, WI · 86 clinicians
Hospital affiliations
- Ascension Columbia St Marys Hospital MilwaukeeMilwaukee, WI
- Ascension Se Wisconsin HospitalMilwaukee, WI
Industry payments (Open Payments)
- 2025$320.20 · 12 payments from 7 companies
- 2024$318.01 · 10 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Urogen Pharma, Inc. | $102.94 | 1 |
| Astellas Pharma US Inc | $62.37 | 3 |
| Pfizer Inc. | $52.41 | 3 |
| Janssen Biotech, Inc. | $52.12 | 2 |
| Tolmar, Inc. | $18.19 | 1 |
What the 2025 payments were for
- Food and Beverage$320.20 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 37 physician assistants in Mequon · All physician assistants in Wisconsin