Michael Opoku-Darko
Neurological Surgery · Sioux Falls, SDNPI 1205480704
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $1,483 of the $2,177 with a category attached, or 68.1%. 13 manufacturers reported payments, led by Boston Scientific at 49.3% of the total.
Across 22 payments — averaging $98.95 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Boston Scientific$1K
- GT Medical Technologies, Inc$572
- Aesculap, Inc.$169
- Medtronic$116
- Biocomposites Inc$94
- Bioventus LLC$38
- plus $115 from 7 others
What the payments were for
- Travel & lodging$69432%
- Food & beverage$1,48368%
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 | $1,072 |
| GT Medical Technologies, Inc | 3 | $572 |
| Aesculap, Inc. | 2 | $169 |
| Medtronic | 1 | $116 |
| Biocomposites Inc | 1 | $94 |
| Bioventus LLC | 2 | $38 |
| Relievant Medsystems, Inc. | 1 | $19 |
| Monteris Medical Corporation | 1 | $18 |
| UCB, Inc. | 1 | $17 |
| Servier Pharmaceuticals LLC | 1 | $16 |
| Brainlab, Inc. | 1 | $16 |
| Conetic Solutions, Inc. | 1 | $16 |
| Orthofix Medical, Inc. | 1 | $14 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- GammaTile$572
- AESCULAP$148
- SYNCHROMEDII$116
How this compares
$2,177 in reported general payments places this provider in the 55th percentile of 20 neurological surgery providers in South Dakota.
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.
Other neurological surgery in Sioux Falls
- Shawn VuongSioux Falls$39K
- George YangSioux Falls$7K
- Seokchun LimSioux Falls$4K
- Margaret CarmodySioux Falls$2K
- Michael PuumalaSioux Falls$2K
- Jonathan WilsonRapid City$153K
- Luis Diaz-AguilarDakota Dunes$5K
- Hendrik KlopperDakota Dunes$4K
- Bryan WellmanRapid City$4K
- Quentin DurwardDakota Dunes$3K
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.