Melissa Dawn Koopmann, PA-C
NPI 1790851301ActiveIndividual· Physician Assistant· Chippewa Falls, WI
Physician Assistant (PA-C) with McHs Hospitals Inc, practicing in Chippewa Falls, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $838,160 for 1,180 claims, against $77,225 paid for services in 2024. Janssen Biotech, Inc. was the largest of 2 companies reporting payments in 2025, $315.13 in all, mostly education. Lists Marshfield Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1790851301 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Nov 27, 2006 |
| Last updated in NPPES | Dec 21, 2021 |
| Certified by provider | Dec 21, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 5638 | WI |
| Physician Assistant | 363A00000X | 385-001225 | IL |
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 (IL); Practitioner - Physician Assistant (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 508 |
|---|---|
| Services billed | 2,335 across 41 procedure codes |
| Paid by Medicare | $77,225 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,180 · 1,370 30-day fills |
|---|---|
| Patients | 361 |
| Total drug cost | $838,160 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- McHs Hospitals IncMarshfield, WI · 1,197 clinicians
Hospital affiliations
- Marshfield Medical CenterMarshfield, WI
- Marshfield Medical Center - Eau ClaireEau Claire, WI
Industry payments (Open Payments)
- 2025$315.13 · 4 payments from 2 companies
- 2024$549.78 · 19 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $299.60 | 3 |
| Abbvie Inc. | $15.53 | 1 |
What the 2025 payments were for
- Education$198.00 · 2 payments
- Food and Beverage$117.13 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 23 physician assistants in Chippewa Falls · All physician assistants in Wisconsin