Marshall A. Mazepa, M.D.
NPI 1174569354ActiveIndividual· Internal Medicine, Hematology & Oncology· Minneapolis, MN
Internal Medicine, Hematology & Oncology (M.D.) in Minneapolis, Minnesota, trained at University of Wisconsin School of Medicine (class of 2006). Their prescriptions cost Medicare Part D more than their services did: $1,451,791 for 571 claims, against $10,678 paid for services in 2024. Novartis Pharmaceuticals Corporation reported $6,901 in payments in 2025, mostly consulting fees.
Overview
| NPI | 1174569354 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 22, 2006 |
| Last updated in NPPES | Jun 14, 2023 |
| Certified by provider | Jun 5, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 157749 | NC |
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/Oncology (MN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 92 |
|---|---|
| Services billed | 147 across 17 procedure codes |
| Paid by Medicare | $10,678 |
Part D prescriptions in 2024
| Prescriptions (claims) | 571 · 656 30-day fills |
|---|---|
| Patients | 77 |
| Total drug cost | $1,451,791 |
| Generic share | 44% of claims |
Education and affiliations
| Medical school | University of Wisconsin School of Medicine |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Fairview Express CareMinneapolis, MN · 1,911 clinicians
Hospital affiliations
- Fairview Lakes Health ServicesWyoming, MN
- M Health Fairview Southdale HospitalEdina, MN
- M Health Fairview St John's HospitalMaplewood, MN
- M Health Fairview University of Mn Medical CenterMinneapolis, MN
Industry payments (Open Payments)
- 2025$6,901 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $6,901 | 2 |
What the 2025 payments were for
- Consulting Fee$6,720 · 1 payment
- Food and Beverage$180.50 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 81 hematologist-oncologists in Minneapolis · All hematologist-oncologists in Minnesota