Troy R. Karlsson, M.D.
NPI 1114913910ActiveIndividual· Orthopaedic Surgery· Naperville, IL
Orthopaedic Surgery (M.D.) in Naperville, Illinois, trained at Columbia University College of Physicians and Surgeons (class of 1988). 577 Medicare patients in 2024, $206,306 paid; all of their 988 Part D prescriptions were generic. Vertex Pharmaceuticals Incorporated was the largest of 6 companies reporting payments in 2025, $261.23 in all, mostly food and beverage.
Overview
| NPI | 1114913910 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 27, 2005 |
| Last updated in NPPES | Aug 9, 2023 |
| Certified by provider | Aug 9, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | 036085872 | IL |
| Orthopaedic Surgery, Sports Medicine | 207XX0005X | 036085872 | IL |
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 - Orthopedic Surgery (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 577 |
|---|---|
| Services billed | 10,313 across 55 procedure codes |
| Paid by Medicare | $206,306 |
Part D prescriptions in 2024
| Prescriptions (claims) | 988 · 1,031 30-day fills |
|---|---|
| Patients | 365 |
| Total drug cost | $7,056 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | Columbia University College of Physicians and Surgeons |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- Dupage Medical Group LtdWinfield, IL · 1,322 clinicians
Hospital affiliation
- Edward HospitalNaperville, IL
Other facilities
- Interim Healthcare of ChicagoHome health agency · Alsip, IL
- Newsome Home Health Care & Purpose Care of Illinois - JolietHome health agency · Joliet, IL
- Residential Home HealthHome health agency · Lisle, IL
Industry payments (Open Payments)
- 2025$261.23 · 10 payments from 6 companies
- 2024$57.12 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vertex Pharmaceuticals Incorporated | $78.83 | 4 |
| Ermi LLC | $70.20 | 2 |
| Anika Therapeutics, Inc. | $57.64 | 1 |
| Ferring Pharmaceuticals Inc. | $19.75 | 1 |
| Depuy Synthes Sales Inc. | $17.93 | 1 |
What the 2025 payments were for
- Food and Beverage$261.23 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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