Matthew Johnson, MD
Neurological Surgery · Dakota Dunes, SDNPI 1376688150
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $1,133 of the $1,411 with a category attached, or 80.3%. 7 manufacturers reported payments, led by Medtronic at 48.3% of the total. Reporting peaked in 2024 at $778 and has fallen 76.9% since, to $179 in 2025. That places this record below the midpoint for neurological surgery clinicians in SD, where the typical reported total is $1,868.
Across 18 payments — averaging $78.41 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$682
- Stryker$474
- Kuros Biosciences USA, Inc$110
- Conetic Solutions, Inc.$70
- Boehringer Ingelheim$33
- Abbott$23
- plus $20 from 1 others
What the payments were for
- Travel & lodging$27820%
- Food & beverage$1,13380%
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 |
|---|---|---|
| Medtronic(2 entities) | 6 | $682 |
| Stryker | 6 | $474 |
| Kuros Biosciences USA, Inc | 1 | $110 |
| Conetic Solutions, Inc. | 1 | $70 |
| Boehringer Ingelheim | 2 | $33 |
| Abbott | 1 | $23 |
| Boston Scientific | 1 | $20 |
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.
- EVEREST SPINAL SYSTEM$426
- UNID_PASS$175
- CD HORIZON SPINAL SYSTEM$159
- MAZOR X SYSTEM$125
- MagnetOs$110
How this compares
$1,411 in reported general payments places this provider in the 35th 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 |
|---|---|---|
| Levetiracetam | 21 | $624 |
| Dexamethasone | 13 | $411 |
| Gabapentin | 11 | $166 |
| Cyclobenzaprine Hcl | 19 | $128 |
| Tramadol Hcl | 19 | $47 |
Paid to pharmacies, not to this prescriber.
Other neurological surgery in Dakota Dunes
- Luis Diaz-AguilarDakota Dunes$5K
- Hendrik KlopperDakota Dunes$4K
- Quentin DurwardDakota Dunes$3K
- 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.