Erika L. Mantsch, PA-C
NPI 1326357815ActiveIndividual· Physician Assistant· Mequon, WI
Physician Assistant (PA-C) with Madison Medical Affiliates Inc, practicing in Mequon, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $967,086 for 1,966 claims, against $18,943 paid for services in 2024. Janssen Biotech, Inc. was the largest of 2 companies reporting payments in 2025, $201.69 in all, mostly food and beverage. Lists Ascension Columbia St Marys Hospital Milwaukee and 1 other hospital as hospital affiliations.
Overview
| NPI | 1326357815 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Sep 30, 2010 |
| Last updated in NPPES | Nov 9, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 2597 | 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 | 254 |
|---|---|
| Services billed | 353 across 11 procedure codes |
| Paid by Medicare | $18,943 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,966 · 4,194 30-day fills |
|---|---|
| Patients | 463 |
| Total drug cost | $967,086 |
| Generic share | 76% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Madison Medical Affiliates IncMilwaukee, WI · 86 clinicians
Hospital affiliations
- Ascension Columbia St Marys Hospital MilwaukeeMilwaukee, WI
- Aurora Medical CenterGrafton, WI
Industry payments (Open Payments)
- 2025$201.69 · 8 payments from 2 companies
- 2024$14.64 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $182.03 | 6 |
| Phathom Pharmaceuticals, Inc. | $19.66 | 2 |
What the 2025 payments were for
- Food and Beverage$201.69 · 8 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