Louie Kostopoulos, MD
NPI 1356431001ActiveIndividual· Internal Medicine, Interventional Cardiology· Milwaukee, WI
Internal Medicine, Interventional Cardiology (MD) with Aurora Medical Group, Inc. and 1 other group, practicing in Milwaukee, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $2,051,381 for 7,131 claims, against $141,750 paid for services in 2024. Medtronic, Inc. was the largest of 6 companies reporting payments in 2025, $10,460 in all, mostly travel and lodging. Lists Aurora Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1356431001 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 13, 2006 |
| Last updated in NPPES | Aug 9, 2023 |
| Certified by provider | Aug 9, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Interventional Cardiology Primary | 207RI0011X | 45636 | WI |
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 - Interventional Cardiology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 748 |
|---|---|
| Services billed | 3,853 across 84 procedure codes |
| Paid by Medicare | $141,750 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,131 · 16,973 30-day fills |
|---|---|
| Patients | 937 |
| Total drug cost | $2,051,381 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Interventional Cardiology |
Medical groups
- Aurora Medical Group, Inc.Milwaukee, WI · 3,813 clinicians
- Aurora Advanced Healthcare, Inc.Milwaukee, WI · 1,124 clinicians
Hospital affiliations
- Aurora Medical CenterGrafton, WI
- Aurora Medical Center KenoshaKenosha, WI
- Aurora Medical Ctr OshkoshOshkosh, WI
- Aurora St Lukes Medical CenterMilwaukee, WI
- West Allis Memorial HospitalWest Allis, WI
Industry payments (Open Payments)
- 2025$10,460 · 43 payments from 6 companies
- 2024$4,222 · 34 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $8,940 | 22 |
| Abiomed | $699.55 | 14 |
| Shockwave Medical, Inc | $313.93 | 2 |
| Boston Scientific Corporation | $261.68 | 3 |
| Abbott Laboratories | $150.00 | 1 |
What the 2025 payments were for
- Travel and Lodging$8,487 · 11 payments
- Food and Beverage$1,972 · 32 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 35 interventional cardiologists in Milwaukee · All interventional cardiologists in Wisconsin