John Konen, M.D.
NPI 1912392481ActiveIndividual· Colon & Rectal Surgery· Chicago, IL
Colon & Rectal Surgery (M.D.) in Chicago, Illinois, trained at Michigan State University College of Human Medicine (class of 2015). In 2024 Medicare paid $59,286 for 145 patients, and Part D covered 153 of their prescriptions, 79% of them generic. Baxter Healthcare was the largest of 2 companies reporting payments in 2025, $178.95 in all, mostly food and beverage.
Overview
| NPI | 1912392481 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 1, 2015 |
| Last updated in NPPES | Oct 6, 2022 |
| Certified by provider | Oct 6, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Colon & Rectal Surgery Primary | 208C00000X | 036161351 | IL |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Colorectal Surgery (Proctology) (IL); Practitioner - Colorectal Surgery (Proctology) (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 145 |
|---|---|
| Services billed | 355 across 50 procedure codes |
| Paid by Medicare | $59,286 |
Part D prescriptions in 2024
| Prescriptions (claims) | 153 · 161 30-day fills |
|---|---|
| Patients | 103 |
| Total drug cost | $10,392 |
| Generic share | 79% of claims |
Education and affiliations
| Medical school | Michigan State University College of Human Medicine |
|---|---|
| Graduation year | 2015 |
| Medicare specialty | Colorectal Surgery (Proctology) |
Medical group
- Rush University Medical GroupChicago, IL · 1,551 clinicians
Hospital affiliations
- Rush Oak Park HospitalOak Park, IL
- Rush University Medical CenterChicago, IL
Industry payments (Open Payments)
- 2025$178.95 · 2 payments from 2 companies
- 2024$2,641 · 4 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Baxter Healthcare | $100.00 | 1 |
| Davol Inc. | $78.95 | 1 |
What the 2025 payments were for
- Food and Beverage$178.95 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other colorectal surgeons in Chicago
- 1033310909
- 1033537659
- 1043539836
- 1073927745
- 1114451135
- 1194732909
- 1215223490
- 1215952536
- 1386962207
- 1396921813
- 1427206689
- 1497018469
All 48 colorectal surgeons in Chicago · All colorectal surgeons in Illinois