Melissa A. Nissen, MD
NPI 1265774384ActiveIndividual· Urology· Eau Claire, WI
Urology (MD) with Mayo Clinic Health System-Northwest Wisconsin Region Inc, practicing in Eau Claire, Wisconsin. 205 Medicare patients in 2024, $49,727 paid; nearly all of their 548 Part D prescriptions were generic (92%). Abbvie Inc. reported $18.00 in payments in 2025, mostly food and beverage. Lists Mayo Clinic Health System Chippewa Valley and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1265774384 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 27, 2013 |
| Last updated in NPPES | Aug 9, 2021 |
| Certified by provider | Aug 9, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Urology Primary | 208800000X | 62669-20 | WI |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Urology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 205 |
|---|---|
| Services billed | 562 across 59 procedure codes |
| Paid by Medicare | $49,727 |
Part D prescriptions in 2024
| Prescriptions (claims) | 548 · 1,023 30-day fills |
|---|---|
| Patients | 189 |
| Total drug cost | $18,063 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Urology |
| Telehealth | Offers telehealth |
Medical group
- Mayo Clinic Health System-Northwest Wisconsin Region IncEau Claire, WI · 802 clinicians
Hospital affiliations
- Mayo Clinic Health System Chippewa ValleyBloomer, WI
- Mayo Clinic Health System Eau Claire HospitalEau Claire, WI
- Mayo Clinic Health System OakridgeOsseo, WI
- Mayo Clinic Health System-NorthlandBarron, WI
- Mayo Clinic Health System-Red Cedar IncMenomonie, WI
Industry payments (Open Payments)
- 2025$18.00 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $18.00 | 1 |
What the 2025 payments were for
- Food and Beverage$18.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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