Marissa Madigan, DNP, RN, FNP-BC
NPI 1225713142ActiveIndividual· Nurse Practitioner, Family· Knoxville, TN
Nurse Practitioner, Family (DNP, RN, FNP-BC) in Knoxville, Tennessee, trained at University of Rochester School of Medicine and Dentistry (class of 2021). Their prescriptions cost Medicare Part D more than their services did: $310,639 for 4,197 claims, against $151,183 paid for services in 2024. Boston Scientific Corporation was the largest of 6 companies reporting payments in 2025, $389.02 in all, mostly food and beverage.
Overview
| NPI | 1225713142 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DNP, RN, FNP-BC |
| Sole proprietor | Yes |
| NPI issued | Jun 19, 2023 |
| Last updated in NPPES | Aug 18, 2023 |
| Certified by provider | Aug 18, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 30059 | TN |
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 (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 114 |
|---|---|
| Services billed | 2,994 across 54 procedure codes |
| Paid by Medicare | $151,183 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,197 · 4,297 30-day fills |
|---|---|
| Patients | 397 |
| Total drug cost | $310,639 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | University of Rochester School of Medicine and Dentistry |
|---|---|
| Graduation year | 2021 |
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Associated Pain Specialists, PCKnoxville, TN · 12 clinicians
Industry payments (Open Payments)
- 2025$389.02 · 32 payments from 6 companies
- 2024$293.24 · 22 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $266.20 | 26 |
| Si-Bone, Inc. | $41.10 | 2 |
| Saluda Medical Americas, Inc. | $28.31 | 1 |
| Vertex Pharmaceuticals Incorporated | $20.47 | 1 |
| Biotronik Nro, Inc. | $18.13 | 1 |
What the 2025 payments were for
- Food and Beverage$389.02 · 32 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 774 family nurse practitioners in Knoxville · All family nurse practitioners in Tennessee