Amy M. Maass, APNP
NPI 1659857977ActiveIndividual· Nurse Practitioner· Neenah, WI
Nurse Practitioner (APNP) with Thedacare, Incorporated and 1 other group, practicing in Neenah, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $344,063 for 4,249 claims, against $44,235 paid for services in 2024. Spinal Simplicity, LLC was the largest of 2 companies reporting payments in 2025, $174.59 in all, mostly food and beverage. Lists Ascension Ne Wisconsin - St Elizabeth Campus and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1659857977 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APNP |
| Sole proprietor | No |
| NPI issued | Jul 19, 2018 |
| Last updated in NPPES | Jan 29, 2026 |
| Certified by provider | Jan 29, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 8660-33 | WI |
| Nurse Practitioner, Family | 363LF0000X | 8660-33 | 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 | 163 |
|---|---|
| Services billed | 812 across 11 procedure codes |
| Paid by Medicare | $44,235 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,249 · 4,879 30-day fills |
|---|---|
| Patients | 350 |
| Total drug cost | $344,063 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical groups
- Thedacare, IncorporatedWaupaca, WI · 647 clinicians
- Wisconsin Spine and Pain SCSheboygan, WI · 20 clinicians
Hospital affiliations
- Ascension Ne Wisconsin - St Elizabeth CampusAppleton, WI
- Thedacare Regional Med Ctr - NeenahNeenah, WI
- Thedacare Regional Medical Center - Appleton IncAppleton, WI
Industry payments (Open Payments)
- 2025$174.59 · 6 payments from 2 companies
- 2024$510.33 · 21 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Spinal Simplicity, LLC | $104.71 | 3 |
| Globus Medical, Inc. | $69.88 | 3 |
What the 2025 payments were for
- Food and Beverage$174.59 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other nurse practitioners in Neenah
- 1043899776
- 1083183297
- 1174218226
- 1215463146
- 1245809714
- 1356072417
- 1427133834
- 1538263223
- 1598474108
- 1689987372
- 1720739543
- 1740469881
All 59 nurse practitioners in Neenah · All nurse practitioners in Wisconsin