Katherine Ann Collins, DNP
NPI 1568945509ActiveIndividual· Nurse Practitioner· Madison, WI
Nurse Practitioner (DNP) with Aspirus Rhinelander and Tomahawk Hospitals and Clinics, Inc., practicing in Madison, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $67,526 for 996 claims, against $11,629 paid for services in 2024. Cardiva Medical, Inc. was the largest of 2 companies reporting payments in 2025, $97.05 in all, mostly food and beverage. Lists Unitypoint Health - Meriter as a hospital affiliation.
Overview
| NPI | 1568945509 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DNP |
| Sole proprietor | No |
| NPI issued | Sep 14, 2018 |
| Last updated in NPPES | Apr 10, 2025 |
| Certified by provider | Apr 10, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 11331-33 | WI |
| Registered Nurse | 163W00000X | 041.434072 | IL |
| Nurse Practitioner | 363L00000X | 290.018164 | 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 - Nurse Practitioner (IL); Practitioner - Nurse Practitioner (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 125 |
|---|---|
| Services billed | 344 across 31 procedure codes |
| Paid by Medicare | $11,629 |
Part D prescriptions in 2024
| Prescriptions (claims) | 996 · 2,039 30-day fills |
|---|---|
| Patients | 204 |
| Total drug cost | $67,526 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Aspirus Rhinelander and Tomahawk Hospitals and Clinics, Inc.Rhinelander, WI · 574 clinicians
Hospital affiliation
- Unitypoint Health - MeriterMadison, WI
Industry payments (Open Payments)
- 2025$97.05 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Cardiva Medical, Inc. | $73.57 | 1 |
| Regeneron Healthcare Solutions, Inc. | $23.48 | 1 |
What the 2025 payments were for
- Food and Beverage$97.05 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 530 nurse practitioners in Madison · All nurse practitioners in Wisconsin