Chadd McMahon, MD
Vascular & Interventional Radiology · Sartell, MNNPI 1972782951
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 15 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 6 manufacturers reported payments, led by Boston Scientific at 47.9% of the total. Reporting peaked in 2023 at $156 and has fallen 86.1% since, to $22 in 2025. That places this record below the midpoint for vascular & interventional radiology clinicians in MN, where the typical reported total is $1,967.
Across 15 payments — averaging $23.37 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Boston Scientific$168
- Inari Medical, Inc.$112
- Surmodics, Inc.$22
- Teleflex LLC$21
- W. L. Gore & Associates, Inc.$15
- Medtronic$14
What the payments were for
- Food & beverage$351100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Boston Scientific | 6 | $168 |
| Inari Medical, Inc. | 5 | $112 |
| Surmodics, Inc. | 1 | $22 |
| Teleflex LLC | 1 | $21 |
| W. L. Gore & Associates, Inc. | 1 | $15 |
| Medtronic | 1 | $14 |
How this compares
$351 in reported general payments places this provider in the 15th percentile of 78 vascular & interventional radiology providers in Minnesota.
See all vascular & interventional radiology providers in Minnesota →
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| ClopidogrelClopidogrel Bisulfate | 35 | $391 |
Paid to pharmacies, not to this prescriber.
Other vascular & interventional radiology in Sartell
- Michael CummingSartell$60K
- Craig MeiersSartell$5K
- James DickinsonSartell$1K
- Tracy NappSartell$667
- Jafar GolzarianGolden Valley$501K
- Michael RosenbergMinneapolis$134K
- Andrew ThoresonPlymouth$129K
- Reza TalaieMinneapolis$64K
- Bjorn EngstromMinneapolis$55K
- Sandra NewberryEden Prairie$41K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.