Gregory Kozeny, MD
NPI 1861499550ActiveIndividual· Internal Medicine, Nephrology· Winfield, IL
Internal Medicine, Nephrology (MD) in Winfield, Illinois, licensed in IL, with an NPI issued in July 2005. Their prescriptions cost Medicare Part D more than their services did: $35,813 for 219 claims, against $1,962 paid for services in 2024. Vifor Pharma, Inc. reported $69.56 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1861499550 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 7, 2005 |
| Last updated in NPPES | Oct 30, 2020 |
| Certified by provider | Oct 30, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 036059588 | 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 - Nephrology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 22 |
|---|---|
| Services billed | 41 across 2 procedure codes |
| Paid by Medicare | $1,962 |
Part D prescriptions in 2024
| Prescriptions (claims) | 219 · 555 30-day fills |
|---|---|
| Patients | 79 |
| Total drug cost | $35,813 |
| Generic share | 88% of claims |
Industry payments (Open Payments)
- 2024$69.56 · 3 payments from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Vifor Pharma, Inc. | $69.56 | 3 |
What the 2024 payments were for
- Food and Beverage$69.56 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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