Jeffrey Joseph Kropp, MD
NPI 1902083538ActiveIndividual· Internal Medicine, Nephrology· Winfield, IL
Internal Medicine, Nephrology (MD) in Winfield, Illinois, trained at Rush Medical College of Rush University (class of 2003). 762 Medicare patients in 2024, $286,830 paid; nearly all of their 1,684 Part D prescriptions were generic (90%). Vifor Pharma, Inc. was the largest of 12 companies reporting payments in 2025, $604.14 in all, mostly food and beverage.
Overview
| NPI | 1902083538 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 25, 2008 |
| Last updated in NPPES | Apr 29, 2025 |
| Certified by provider | Apr 29, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 036119628 | 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 | 762 |
|---|---|
| Services billed | 4,531 across 23 procedure codes |
| Paid by Medicare | $286,830 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,684 · 4,474 30-day fills |
|---|---|
| Patients | 336 |
| Total drug cost | $213,646 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Rush Medical College of Rush University |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical groups
- Nephrology Associates of Northern Illinois LtdAlgonquin, IL · 117 clinicians
- Nani-Ihp LLCElmhurst, IL · 7 clinicians
Hospital affiliations
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- Northwestern Medicine Delnor Community HospitalGeneva, IL
- Northwestern Medicine Kishwaukee HospitalDekalb, IL
- Uchicago Medicine Adventhealth GlenoaksGlendale Heights, IL
- Valley West Community HospitalSandwich, IL
Other facilities
- Concerto DialysisDialysis facility · Lincolnwood, IL
- Fmc - Dupage WestDialysis facility · West Chicago, IL
- Fmc - West BataviaDialysis facility · Batavia, IL
- Fmc - West Chicago Dialysis CenterDialysis facility · West Chicago, IL
- Marianjoy Rehabilitation CenterInpatient rehabilitation facility · Wheaton, IL
Industry payments (Open Payments)
- 2025$604.14 · 23 payments from 12 companies
- 2024$659.53 · 28 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vifor Pharma, Inc. | $105.15 | 4 |
| Novartis Pharmaceuticals Corporation | $85.23 | 3 |
| Calliditas Therapeutics US Inc. | $68.50 | 2 |
| Amgen Inc. | $66.70 | 3 |
| Travere Therapeutics, Inc. | $58.33 | 2 |
What the 2025 payments were for
- Food and Beverage$604.14 · 23 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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