Quentin Durward, MD
Neurological Surgery · Dakota Dunes, SDNPI 1457354383
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $2,067 of the $3,044 with a category attached, or 67.9%. Stryker accounts for 66.7% of it on its own, with 5 other manufacturers making up the rest. Reporting peaked in 2020 at $880 and has fallen 94.6% since, to $48 in 2025.
Across 25 payments — averaging $121.75 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Stryker$2K
- Si-bone, Inc.$662
- Johnson & Johnson$182
- Medtronic$122
- Lifenet Health$34
- Cerapedics Inc.$15
What the payments were for
- Travel & lodging$2,06768%
- Food & beverage$97732%
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 |
|---|---|---|
| Stryker | 14 | $2,030 |
| Si-bone, Inc. | 5 | $662 |
| Johnson & Johnson(2 entities) | 3 | $182 |
| Medtronic | 1 | $122 |
| Lifenet Health | 1 | $34 |
| Cerapedics Inc. | 1 | $15 |
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.
How this compares
$3,044 in reported general payments places this provider in the 60th 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Gabapentin | 29 | $271 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 11 | $99 |
| Tramadol Hcl | 12 | $52 |
| Cyclobenzaprine Hcl | 21 | $50 |
Paid to pharmacies, not to this prescriber.
Other neurological surgery in Dakota Dunes
- Luis Diaz-AguilarDakota Dunes$5K
- Hendrik KlopperDakota Dunes$4K
- Matthew JohnsonDakota Dunes$1K
- Grant ShumakerDakota Dunes$516
- Ralph ReederDakota Dunes$272
- Thorir RagnarssonDakota Dunes$50
- Jonathan WilsonRapid City$153K
- Shawn VuongSioux Falls$39K
- George YangSioux Falls$7K
- Seokchun LimSioux Falls$4K
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.