Melissa K. Mayer, APNP
NPI 1265901664ActiveIndividual· Nurse Practitioner, Family· Mount Pleasant, WI
Nurse Practitioner, Family (APNP) with Ascension Medical Group-Southeast Wisconsin Inc, practicing in Mount Pleasant, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $44,682 for 454 claims, against $3,787 paid for services in 2024. Pfizer Inc. was the largest of 3 companies reporting payments in 2025, $113.75 in all, mostly food and beverage. Lists Ascension All Saints Hospital as a hospital affiliation.
Overview
| NPI | 1265901664 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APNP |
| Sole proprietor | No |
| NPI issued | Nov 15, 2018 |
| Last updated in NPPES | Nov 15, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 8796-33 | 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 | 56 |
|---|---|
| Services billed | 72 across 7 procedure codes |
| Paid by Medicare | $3,787 |
Part D prescriptions in 2024
| Prescriptions (claims) | 454 · 924 30-day fills |
|---|---|
| Patients | 93 |
| Total drug cost | $44,682 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Ascension Medical Group-Southeast Wisconsin IncBrookfield, WI · 545 clinicians
Hospital affiliation
- Ascension All Saints HospitalRacine, WI
Industry payments (Open Payments)
- 2025$113.75 · 4 payments from 3 companies
- 2024$63.73 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $64.39 | 2 |
| Bayer Healthcare Pharmaceuticals Inc. | $26.88 | 1 |
| Scpharmaceuticals Inc. | $22.48 | 1 |
What the 2025 payments were for
- Food and Beverage$113.75 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 27 family nurse practitioners in Mount Pleasant · All family nurse practitioners in Wisconsin