Michael Grzeskowiak
NPI 1215469218ActiveIndividual· Internal Medicine, Cardiovascular Disease· Peoria, IL
Internal Medicine, Cardiovascular Disease in Peoria, Illinois, trained at Loyola University of Chicago, Stritch School of Medicine (class of 2017). Their prescriptions cost Medicare Part D more than their services did: $124,077 for 740 claims, against $33,499 paid for services in 2024. Abbott Laboratories was the largest of 2 companies reporting payments in 2025, $1,681 in all, mostly travel and lodging.
Overview
| NPI | 1215469218 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | Yes |
| NPI issued | Mar 29, 2017 |
| Last updated in NPPES | Dec 3, 2024 |
| Certified by provider | Dec 3, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | 036171425 | IL |
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 - Cardiovascular Disease (Cardiology) (IL); Practitioner - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 743 |
|---|---|
| Services billed | 1,054 across 54 procedure codes |
| Paid by Medicare | $33,499 |
Part D prescriptions in 2024
| Prescriptions (claims) | 740 · 1,922 30-day fills |
|---|---|
| Patients | 224 |
| Total drug cost | $124,077 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Osf Multi-Specialty GroupMorton, IL · 2,114 clinicians
Hospital affiliations
- Graham Hospital AssociationCanton, IL
- Saint Francis Medical CenterPeoria, IL
- St Joseph Medical CenterBloomington, IL
- St Mary Medical CenterGalesburg, IL
Industry payments (Open Payments)
- 2025$1,681 · 12 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $1,667 | 11 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $14.07 | 1 |
What the 2025 payments were for
- Travel and Lodging$1,177 · 3 payments
- Food and Beverage$504.40 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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