Melissa Koss, APNP
NPI 1437527389ActiveIndividual· Nurse Practitioner· Manitowoc, WI
Nurse Practitioner (APNP) with Froedtert Manitowoc Medical Group, LLC, practicing in Manitowoc, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $158,629 for 3,239 claims, against $95,422 paid for services in 2024. Medtronic, Inc. reported $65.71 in payments in 2025, mostly food and beverage. Lists Froedtert Memorial Lutheran Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1437527389 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APNP |
| Sole proprietor | No |
| NPI issued | Sep 9, 2015 |
| Last updated in NPPES | Dec 23, 2024 |
| Certified by provider | Dec 23, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 6633 | 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 - Nurse Practitioner (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 222 |
|---|---|
| Services billed | 1,366 across 16 procedure codes |
| Paid by Medicare | $95,422 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,239 · 3,361 30-day fills |
|---|---|
| Patients | 322 |
| Total drug cost | $158,629 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Froedtert Manitowoc Medical Group, LLCSheboygan, WI · 156 clinicians
Hospital affiliations
- Froedtert Memorial Lutheran HospitalMilwaukee, WI
- Holy Family MemorialManitowoc, WI
Industry payments (Open Payments)
- 2025$65.71 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $65.71 | 1 |
What the 2025 payments were for
- Food and Beverage$65.71 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 36 nurse practitioners in Manitowoc · All nurse practitioners in Wisconsin