James F. Koop, M.D.
NPI 1255420451ActiveIndividual· Internal Medicine· Melrose Park, IL
Internal Medicine (M.D.) with Elio M Vento MD and Associates SC, practicing in Melrose Park, Illinois. Their prescriptions cost Medicare Part D more than their services did: $705,832 for 8,943 claims, against $128,709 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 7 companies reporting payments in 2025, $782.92 in all, mostly food and beverage. Lists Advocate Sherman Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1255420451 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 12, 2006 |
| Last updated in NPPES | Mar 30, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036086979 | 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 - Internal Medicine (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 345 |
|---|---|
| Services billed | 2,244 across 45 procedure codes |
| Paid by Medicare | $128,709 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,943 · 20,947 30-day fills |
|---|---|
| Patients | 654 |
| Total drug cost | $705,832 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1991 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Elio M Vento MD and Associates SCElgin, IL · 8 clinicians
Hospital affiliations
- Advocate Sherman HospitalElgin, IL
- Loyola Gottlieb Memorial HospitalMelrose Park, IL
- Loyola University Medical CenterMaywood, IL
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- Saint Joseph Hospital-ElginElgin, IL
Other facilities
- Safe Life Home Health Care, LLCHome health agency · Lombard, IL
Industry payments (Open Payments)
- 2025$782.92 · 39 payments from 7 companies
- 2024$806.10 · 40 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $288.28 | 15 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $286.60 | 14 |
| Glaxosmithkline, LLC. | $90.13 | 4 |
| Pfizer Inc. | $58.08 | 3 |
| Corcept Therapeutics | $23.63 | 1 |
What the 2025 payments were for
- Food and Beverage$782.92 · 39 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 48 internal medicine physicians in Melrose Park · All internal medicine physicians in Illinois