George Yang
Neurological Surgery · Sioux Falls, SDNPI 1124480389
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $4,325 of the $6,655 with a category attached, or 65.0%. 17 manufacturers reported payments, led by Orthofix Medical, Inc. at 40.1% of the total. Reporting peaked in 2023 at $3,508 and has fallen 86.2% since, to $483 in 2025.
Across 54 payments — averaging $123.23 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Orthofix Medical, Inc.$3K
- Alphatec Spine, Inc$2K
- Johnson & Johnson$590
- Aesculap, Inc.$274
- Stryker$196
- Medtronic$171
- plus $389 from 11 others
What the payments were for
- Travel & lodging$4,32565%
- Food & beverage$2,32935%
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 |
|---|---|---|
| Orthofix Medical, Inc. | 18 | $2,667 |
| Alphatec Spine, Inc | 6 | $2,368 |
| Johnson & Johnson | 7 | $590 |
| Aesculap, Inc. | 4 | $274 |
| Stryker | 2 | $196 |
| Medtronic | 4 | $171 |
| Zimvie Inc. | 1 | $149 |
| Conetic Solutions, Inc. | 2 | $39 |
| Bioventus LLC | 2 | $38 |
| Amneal Pharmaceuticals LLC | 1 | $28 |
| AbbVie | 1 | $26 |
| Davol Inc. | 1 | $22 |
| Telix Pharmaceuticals | 1 | $20 |
| AstraZeneca | 1 | $18 |
| Biogen | 1 | $18 |
| Brainlab, Inc. | 1 | $16 |
| Si-bone, 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.
- Other - Miscellaneous$2,293
- 7D Surgical System$1,108
- NorthStar$1,030
- UNIVERSAL NEURO 3$171
- NA$171
- SYNFIX Evolution$150
- SYMPHONY$150
- EXPEDIUM$150
- Mobi-C$149
- AESCULAP$148
- Mariner$143
- FIBERGRAFT BG Morsels$122
- SYNCHROMEDII$101
How this compares
$6,655 in reported general payments places this provider in the 85th 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
- Seokchun LimSioux Falls$4K
- Michael Opoku-DarkoSioux Falls$2K
- 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.