Erhan Guler, MD
NPI 1275121477ActiveIndividual· Thoracic Surgery (Cardiothoracic Vascular Surgery)· Winfield, IL
Thoracic Surgery (Cardiothoracic Vascular Surgery) (MD) with Northwestern Medical Faculty Foundation, practicing in Winfield, Illinois. Mostly services rather than prescriptions: Medicare paid $206,085 for 195 patients in 2024, with only 18 Part D claims. Medtronic, Inc. was the largest of 3 companies reporting payments in 2025, $138.04 in all, mostly food and beverage. Lists Northwestern Medicine Central Dupage Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1275121477 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jan 4, 2021 |
| Last updated in NPPES | Nov 13, 2023 |
| Certified by provider | Nov 13, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Primary | 208G00000X | 036165657 | IL |
| Thoracic Surgery (Cardiothoracic Vascular Surgery) | 208G00000X | 35.147107 | OH |
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 (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 195 |
|---|---|
| Services billed | 439 across 32 procedure codes |
| Paid by Medicare | $206,085 |
Part D prescriptions in 2024
| Prescriptions (claims) | 18 · 18 30-day fills |
|---|---|
| Total drug cost | $101.86 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Thoracic Surgery |
| Secondary specialties | Cardiac Surgery |
Medical group
- Northwestern Medical Faculty FoundationChicago, IL · 4,503 clinicians
Hospital affiliations
Industry payments (Open Payments)
- 2025$138.04 · 5 payments from 3 companies
- 2024$29.29 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $67.00 | 3 |
| Baxter Healthcare | $41.17 | 1 |
| Atricure, Inc. | $29.87 | 1 |
What the 2025 payments were for
- Food and Beverage$138.04 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Thoracic Surgery (Cardiothoracic Vascular Surgery) providers in Winfield
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