Marc J. Alonzo, MD
NPI 1033142351ActiveIndividual· Radiology, Vascular & Interventional Radiology· Evanston, IL
Radiology, Vascular & Interventional Radiology (MD) in Evanston, Illinois, trained at University of Missouri, Columbia School of Medicine (class of 1996). Medicare paid $162,171 for services to 737 patients in 2024. Asahi Intecc USA, Inc. was the largest of 5 companies reporting payments in 2025, $208.12 in all, mostly food and beverage.
Overview
| NPI | 1033142351 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 9, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Vascular & Interventional Radiology Primary | 2085R0204X | — | 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 - Interventional Radiology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 737 |
|---|---|
| Services billed | 1,811 across 146 procedure codes |
| Paid by Medicare | $162,171 |
Education and affiliations
| Medical school | University of Missouri, Columbia School of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Interventional Radiology |
Medical group
- Endeavor Health Medical GroupEvanston, IL · 3,350 clinicians
Hospital affiliations
- Northshore University Healthsystem - Evanston HospitalEvanston, IL
- Swedish HospitalChicago, IL
Industry payments (Open Payments)
- 2025$208.12 · 5 payments from 5 companies
- 2024$9,415 · 14 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Asahi Intecc USA, Inc. | $59.05 | 1 |
| Sirtex Medical Inc | $55.44 | 1 |
| Inari Medical, Inc. | $40.61 | 1 |
| Medtronic, Inc. | $33.15 | 1 |
| Microvention, Inc. | $19.87 | 1 |
What the 2025 payments were for
- Food and Beverage$208.12 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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