Marek S. Bentkowski, MD
NPI 1437167277ActiveIndividual· Family Medicine· Roscoe, IL
Family Medicine (MD) with Beloit Health System Inc, practicing in Roscoe, Illinois. Their prescriptions cost Medicare Part D more than their services did: $459,665 for 5,570 claims, against $45,577 paid for services in 2024. Novo Nordisk Inc was the largest of 3 companies reporting payments in 2025, $55.58 in all, mostly food and beverage. Lists Beloit Health System and 1 other hospital as hospital affiliations.
Overview
| NPI | 1437167277 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 4, 2006 |
| Last updated in NPPES | Oct 19, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 036-105459 | IL |
| Family Medicine | 207Q00000X | 44662-020 | 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 - Family Practice (IL); Practitioner - Family Practice (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 552 |
|---|---|
| Services billed | 866 across 24 procedure codes |
| Paid by Medicare | $45,577 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,570 · 11,793 30-day fills |
|---|---|
| Patients | 804 |
| Total drug cost | $459,665 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Family Practice |
Medical group
- Beloit Health System IncBeloit, WI · 135 clinicians
Hospital affiliations
- Beloit Health SystemBeloit, WI
- University of Wi Hospitals & Clinics AuthorityMadison, WI
Other facilities
- Empower Home Health ServicesHome health agency · West Dundee, IL
- Beloit Regional HospiceHospice · Beloit, WI
- Autumn Lake Healthcare at BeloitNursing home · Beloit, WI
Industry payments (Open Payments)
- 2025$55.58 · 3 payments from 3 companies
- 2024$200.00 · 5 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $21.81 | 1 |
| Dexcom, Inc. | $18.98 | 1 |
| Pfizer Inc. | $14.79 | 1 |
What the 2025 payments were for
- Food and Beverage$55.58 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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