Mary E. Horner, NP
NPI 1962717371ActiveIndividual· Nurse Practitioner, Family· Oconomowoc, WI
Nurse Practitioner, Family (NP) with Prohealth Medical Group Inc, practicing in Oconomowoc, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $467,152 for 11,599 claims, against $133,005 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 3 companies reporting payments in 2025, $257.22 in all, mostly food and beverage. Lists Oconomowoc Memorial Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1962717371 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | Aug 10, 2010 |
| Last updated in NPPES | Mar 10, 2025 |
| Certified by provider | Mar 10, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 4109 | WI |
| Nurse Practitioner | 363L00000X | 4109 | 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 | 165 |
|---|---|
| Services billed | 1,802 across 23 procedure codes |
| Paid by Medicare | $133,005 |
Part D prescriptions in 2024
| Prescriptions (claims) | 11,599 · 11,852 30-day fills |
|---|---|
| Patients | 272 |
| Total drug cost | $467,152 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Prohealth Medical Group IncMukwonago, WI · 479 clinicians
Hospital affiliations
- Oconomowoc Memorial HospitalOconomowoc, WI
- Waukesha Memorial HospitalWaukesha, WI
Industry payments (Open Payments)
- 2025$257.22 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $210.34 | 2 |
| Boston Scientific Corporation | $27.20 | 1 |
| Amgen Inc. | $19.68 | 1 |
What the 2025 payments were for
- Food and Beverage$257.22 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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