Jeffrey Mark Wiisanen, MD
NPI 1306282025ActiveIndividual· Internal Medicine, Hematology & Oncology· Fargo, ND
Internal Medicine, Hematology & Oncology (MD) in Fargo, North Dakota, trained at University of North Dakota School of Medicine (class of 2013). Their prescriptions cost Medicare Part D more than their services did: $1,905,362 for 1,569 claims, against $71,495 paid for services in 2024. Histosonics, Inc. reported $252.79 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1306282025 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 21, 2013 |
| Last updated in NPPES | Sep 17, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 58264 | MN |
| Internal Medicine | 207R00000X | 58264 | MN |
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 - Hematology (ND) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 257 |
|---|---|
| Services billed | 1,674 across 20 procedure codes |
| Paid by Medicare | $71,495 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,569 · 2,035 30-day fills |
|---|---|
| Patients | 204 |
| Total drug cost | $1,905,362 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | University of North Dakota School of Medicine |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Hematology |
| Telehealth | Offers telehealth |
Medical group
- Sanford Medical Center FargoWest Fargo, ND · 1,225 clinicians
Hospital affiliations
- Carrington Health CenterCarrington, ND
- Jamestown Regional Medical CenterJamestown, ND
- Perham HealthPerham, MN
- Sanford Bemidji Medical CenterBemidji, MN
- Sanford Medical Center FargoFargo, ND
Other facilities
- Hia HospiceHospice · Fargo, ND
Industry payments (Open Payments)
- 2025$252.79 · 1 payment from 1 company
- 2024$28.92 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Histosonics, Inc. | $252.79 | 1 |
What the 2025 payments were for
- Food and Beverage$252.79 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 24 hematologist-oncologists in Fargo · All hematologist-oncologists in North Dakota