Karen Rieger, MD
NPI 1598870982ActiveIndividual· Thoracic Surgery (Cardiothoracic Vascular Surgery)· Indianapolis, IN
Thoracic Surgery (Cardiothoracic Vascular Surgery) (MD) in Indianapolis, Indiana, trained at Rush Medical College of Rush University (class of 1990). Medicare paid $29,289 for services to 43 patients in 2024. Intuitive Surgical, Inc. was the largest of 2 companies reporting payments in 2025, $107.48 in all, mostly food and beverage.
Overview
| NPI | 1598870982 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 19, 2006 |
| Last updated in NPPES | Dec 29, 2020 |
| Certified by provider | Dec 29, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Primary | 208G00000X | 01047804 | IN |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Thoracic Surgery (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 43 |
|---|---|
| Services billed | 85 across 28 procedure codes |
| Paid by Medicare | $29,289 |
Education and affiliations
| Medical school | Rush Medical College of Rush University |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Thoracic Surgery |
Medical groups
- Iu Health Medical Group LLCIndianapolis, IN · 4,462 clinicians
- Cardiothoracic Surgeons IncIndianapolis, IN · 64 clinicians
Hospital affiliations
- Eskenazi HealthIndianapolis, IN
- Indiana University HealthIndianapolis, IN
Industry payments (Open Payments)
- 2025$107.48 · 2 payments from 2 companies
- 2024$290.26 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $85.69 | 1 |
| Atricure, Inc. | $21.79 | 1 |
What the 2025 payments were for
- Food and Beverage$107.48 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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