Seth Williams, MD
Orthopaedic Surgery of the Spine · Madison, WINPI 1306054390
Payments from drug & device makers
What this record shows
The money is spread across several categories — royalties or licence payments (58.6%), consulting fees and speaking fees — rather than concentrated in one kind of arrangement. Medtronic accounts for 61.0% of it on its own, with 10 other manufacturers making up the rest. Reporting peaked in 2023 at $498,663 and has fallen 95.1% since, to $24,367 in 2025.
Across 323 payments — averaging $2940.66 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$579K
- Orthofix Medical, Inc.$121K
- Stryker$92K
- Medical Device Business Services, Inc.$54K
- Seaspine Orthopedics Corporation$48K
- Expanding Innovations, Inc.$38K
- plus $18K from 5 others
Across 6 payments — averaging $6214.22 each. An ownership or investment interest held by the physician or an immediate family member.
- Expanding Innovations, Inc.$37K
- Titan Spine, LLC$0
What the payments were for
- Royalty or licence$556,87359%
- Consulting fees$203,20821%
- Speaking & faculty fees$112,00012%
- Travel & lodging$31,1893%
- Food & beverage$5,1511%
- Other$41,4124%
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) | 40 | $579,418 |
| Orthofix Medical, Inc. | 43 | $121,073 |
| Stryker | 104 | $91,926 |
| Medical Device Business Services, Inc. | 40 | $54,041 |
| Seaspine Orthopedics Corporation | 70 | $48,036 |
| Expanding Innovations, Inc. | 12 | $37,768 |
| VB Spine LLC | 4 | $12,456 |
| Alphatec Spine, Inc | 5 | $3,125 |
| Mirus, LLC | 3 | $1,721 |
| Brainlab, Inc. | 1 | $153 |
| Johnson & Johnson | 1 | $116 |
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.
- COUGAR$50,965
- EXPEDIUM$50,603
- ORACLE Spacer$49,840
- RAVINE LATERAL ACCESS SYSTEM$36,971
- X-PAC$34,616
- nanoLOCK-C$22,669
- nanoLOCK-L$20,855
- CASCADIA$14,866
- Facet Fixation$8,375
- CASCADIA INTERBODY SYSTEM$8,321
- LATERAL ACCESS SPINAL SYSTEM$7,500
- NAPA ACCESS SYSTEM$7,500
- NIAGARA LATERAL ACCESS SYSTEM$7,015
- CAYMAN$5,750
- NorthStar$3,365
- Other - Miscellaneous$2,838
- MISCELLANEOUS$1,751
- ENDOSKELETON TL NANOLOCK SURFACE TECHNOLOGY$1,750
- EUROPA Pedicle Screw System$1,706
- CYGNUS Anterior Cervical Plate$1,706
How this compares
Too few orthopaedic surgery of the spine providers in Wisconsinto place this figure against a meaningful peer group, so we don't.
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 orthopaedic surgery of the spine in Madison
- Jason SansoneMadison$262K
- David de WittAppleton$8.9M
- Clay FrankKenosha$652K
- Michael DidinskyKenosha$157K
- Eric BelinGrafton$41K
- Jason PotockiStevens Point$3K
- Todd FairchildStevens Point$2K
- Mustafa KhanMilwaukee$364
- Lawrence MaciolekGlendale$86
- Branko PrpaMt Pleasant$74
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.