Robert R. Lisek, MD
NPI 1639187677ActiveIndividual· Internal Medicine· Roscoe, IL
Internal Medicine (MD) with Beloit Health System Inc, practicing in Roscoe, Illinois. Their prescriptions cost Medicare Part D more than their services did: $466,368 for 6,454 claims, against $63,579 paid for services in 2024. Pfizer Inc. was the largest of 13 companies reporting payments in 2025, $738.77 in all, mostly food and beverage. Lists Beloit Health System and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1639187677 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 4, 2006 |
| Last updated in NPPES | Feb 14, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036097909 | IL |
| Internal Medicine | 207R00000X | 38216-020 | 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 - Internal Medicine (IL); Practitioner - Internal Medicine (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 594 |
|---|---|
| Services billed | 1,000 across 15 procedure codes |
| Paid by Medicare | $63,579 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,454 · 16,204 30-day fills |
|---|---|
| Patients | 793 |
| Total drug cost | $466,368 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Beloit Health System IncBeloit, WI · 135 clinicians
Hospital affiliations
- Beloit Health SystemBeloit, WI
- University of Wi Hospitals & Clinics AuthorityMadison, WI
- Uw HealthRockford, IL
Other facilities
- Beloit Regional HospiceHospice · Beloit, WI
Industry payments (Open Payments)
- 2025$738.77 · 39 payments from 13 companies
- 2024$970.08 · 55 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $239.25 | 16 |
| Novo Nordisk Inc | $209.87 | 6 |
| Lilly USA, LLC | $46.83 | 3 |
| Janssen Pharmaceuticals, Inc | $34.35 | 2 |
| Collegium Pharmaceutical, Inc. | $33.13 | 2 |
What the 2025 payments were for
- Food and Beverage$738.77 · 39 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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