Adam Halverson, DO
Foot and Ankle Surgery · Wausau, WINPI 1922340967
Payments from drug & device makers
What this record shows
The money is spread across several categories — education (44.5%), travel and lodging and food and beverage — rather than concentrated in one kind of arrangement. Arthrex accounts for 63.0% of it on its own, with 10 other manufacturers making up the rest. Reporting peaked in 2019 at $6,202 and has fallen 92.3% since, to $476 in 2025.
Across 82 payments — averaging $170.83 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Arthrex$9K
- True North Surgical Inc$2K
- Medline Industries LP$1K
- Great Lakes Orthopedics$946
- Stryker$380
- Paragon 28, Inc.$207
- plus $297 from 5 others
What the payments were for
- Travel & lodging$5,05536%
- Food & beverage$2,70719%
- Education$6,23445%
- Gifts$120%
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 |
|---|---|---|
| Arthrex | 46 | $8,828 |
| True North Surgical Inc | 4 | $1,864 |
| Medline Industries LP | 15 | $1,487 |
| Great Lakes Orthopedics | 5 | $946 |
| Stryker | 2 | $380 |
| Paragon 28, Inc. | 3 | $207 |
| Johnson & Johnson(2 entities) | 3 | $154 |
| Treace Medical Concepts, Inc. | 1 | $77 |
| Flower Orthopedics Coporation | 1 | $40 |
| Linvatec Corporation | 1 | $14 |
| Pacira Therapeutics, Inc. | 1 | $12 |
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.
- INBONE$212
- ORTHOLOC 2 LAPIFUSE$167
- ELITE$110
- CANNULATED SCREWS$110
- Preserve$109
How this compares
$14,008 in reported general payments places this provider in the 80th percentile of 105 foot and ankle surgery providers in Wisconsin.
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 |
|---|---|---|
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 50 | $351 |
| Tramadol Hcl | 22 | $54 |
Paid to pharmacies, not to this prescriber.
Other foot and ankle surgery in Wausau
- Mitch HulbertSheboygan$96K
- James WhelanBeloit$51K
- Nikita GramaStevens Point$31K
- Keith AndersonHayward$31K
- Jay ChristensenAppleton$26K
- Jason BurkleMadison$26K
- Hui ZhangOak Creek$25K
- James TorhorstWaupaca$25K
- Todd DerksenAppleton$23K
- Spencer HammackPlatteville$20K
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.