Brendan David O'Donnell, MD
NPI 1841794021ActiveIndividual· Colon & Rectal Surgery· Chicago, IL
Colon & Rectal Surgery (MD) in Chicago, Illinois, trained at Loyola University of Chicago, Stritch School of Medicine (class of 2018). Mostly services rather than prescriptions: Medicare paid $2,573 for 13 patients in 2024, with only 28 Part D claims. Intuitive Surgical, Inc. was the largest of 3 companies reporting payments in 2025, $1,241 in all, mostly education.
Overview
| NPI | 1841794021 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 21, 2018 |
| Last updated in NPPES | Dec 1, 2023 |
| Certified by provider | Dec 1, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Colon & Rectal Surgery Primary | 208C00000X | 036.165186 | IL |
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 - General Surgery (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 13 |
|---|---|
| Services billed | 16 across 11 procedure codes |
| Paid by Medicare | $2,573 |
Part D prescriptions in 2024
| Prescriptions (claims) | 28 · 29 30-day fills |
|---|---|
| Patients | 22 |
| Total drug cost | $143.78 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | General Surgery |
Medical groups
- The Board of Trustees of the University of IllinoisChicago, IL · 1,150 clinicians
- Cook CountyChicago, IL · 788 clinicians
Hospital affiliations
- John H Stroger Jr HospitalChicago, IL
- University of Illinois Hospital and ClinicsChicago, IL
Industry payments (Open Payments)
- 2025$1,241 · 3 payments from 3 companies
- 2024$770.32 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $1,000 | 1 |
| Boston Scientific Corporation | $130.79 | 1 |
| Medtronic, Inc. | $110.62 | 1 |
What the 2025 payments were for
- Education$1,000 · 1 payment
- Food and Beverage$241.41 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 48 colorectal surgeons in Chicago · All colorectal surgeons in Illinois