Jeffrey Kropp, MD
NPI 1902083538 · Nephrology Physician · Winfield, IL
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jeffrey Kropp, MD is a Nephrology Physician provider in Winfield, IL (NPI 1902083538).
Provider details
- NPI number
- 1902083538
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036119628 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
3,312 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 1,027 | $79 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 521 | $118 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 480 | $60 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 315 | $79 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 223 | $349 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 184 | 70 |
| Olmesartan Medoxomil | 111 | 32 |
| Chlorthalidone | 90 | 31 |
| Bumetanide | 84 | 31 |
| Lisinopril | 78 | 30 |
| Hydralazine Hcl | 77 | 26 |
| Furosemide | 71 | 28 |
| Spironolactone |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$660 across 28 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 302 Randall Rd Ste 205Geneva, IL 60134-4219Phone: (630) 690-1220Fax: (630) 208-1667
Registry dates
- Enumerated
- 2008-01-25
- Last updated
- 2025-04-29
- Certified
- 2025-04-29
Frequently asked questions
- What is Jeffrey Kropp's NPI number?
- Jeffrey Kropp's National Provider Identifier (NPI) is 1902083538, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Kropp's specialty?
- Jeffrey Kropp is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Jeffrey Kropp located?
- Jeffrey Kropp's practice location on file with NPPES is 25 N Winfield Rd, Winfield, IL 60190-1222.
- What is Jeffrey Kropp's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Kropp is (630) 690-1220.
- Does Jeffrey Kropp accept Medicare?
- Jeffrey Kropp is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jeffrey Kropp's NPI active?
- Yes — Jeffrey Kropp's NPI (1902083538) is active in the NPPES registry as of the last update on 2025-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.