Piotr Witkowski
NPI 1104058023ActiveIndividual· Transplant Surgery· Chicago, IL
Transplant Surgery with University of Chicago and 1 other group, practicing in Chicago, Illinois. 83 Medicare patients in 2024, $57,389 paid; nearly all of their 243 Part D prescriptions were generic (94%). Novo Nordisk As was the largest of 6 companies reporting payments in 2025, $72,220 in all, mostly consulting fees. Lists The University of Chicago Medical Center as a hospital affiliation.
Overview
| NPI | 1104058023 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Aug 11, 2009 |
| Last updated in NPPES | Oct 24, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Transplant Surgery Primary | 204F00000X | 036124641 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - General Surgery (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 83 |
|---|---|
| Services billed | 235 across 27 procedure codes |
| Paid by Medicare | $57,389 |
Part D prescriptions in 2024
| Prescriptions (claims) | 243 · 303 30-day fills |
|---|---|
| Patients | 48 |
| Total drug cost | $27,620 |
| Generic share | 94% of claims |
Education and affiliations
| Graduation year | 1993 |
|---|---|
| Medicare specialty | General Surgery |
Medical groups
- University of ChicagoChicago, IL · 1,712 clinicians
- The University of Chicago Medical CenterChicago, IL · 915 clinicians
Hospital affiliation
- The University of Chicago Medical CenterChicago, IL
Industry payments (Open Payments)
- 2025$72,220 · 28 payments from 6 companies
- 2024$46,660 · 29 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk As | $24,893 | 5 |
| Vertex Pharmaceuticals Incorporated | $19,910 | 13 |
| Sanofi US Services Inc. | $13,523 | 7 |
| Sanofi-Aventis U.S. LLC | $12,804 | 1 |
| Insulet Corporation | $1,050 | 1 |
What the 2025 payments were for
- Consulting Fee$49,980 · 7 payments
- Travel and Lodging$21,715 · 14 payments
- Food and Beverage$525.42 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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