Kris Ferguson, MD
Pain Medicine · Greenfield, WINPI 1376751271
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (37.0%), food and beverage and travel and lodging — rather than concentrated in one kind of arrangement. 14 manufacturers reported payments, led by Boston Scientific at 52.7% of the total. 2025 is the largest year on record at $9,853, 2.8 times the $3,568 reported in 2019.
Across 164 payments — averaging $111.38 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Boston Scientific$10K
- Abbott$4K
- Stryker$2K
- Vertiflex, Inc.$2K
- SPR Therapeutics, Inc$161
- Medtronic$120
- plus $447 from 8 others
What the payments were for
- Consulting fees$6,75037%
- Travel & lodging$4,81326%
- Food & beverage$6,70337%
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 |
|---|---|---|
| Boston Scientific | 45 | $9,633 |
| Abbott | 72 | $4,183 |
| Stryker | 17 | $1,941 |
| Vertiflex, Inc. | 13 | $1,780 |
| SPR Therapeutics, Inc | 4 | $161 |
| Medtronic | 1 | $120 |
| Nevro Corp. | 4 | $109 |
| GRT US Holding, Inc. | 1 | $107 |
| Curonix LLC | 1 | $98 |
| Averitas Pharma Inc. | 1 | $64 |
| Pfizer | 2 | $22 |
| Scilex Pharmaceuticals Inc. | 1 | $17 |
| Electronic Waveform Lab, Inc. | 1 | $17 |
| Upsher-smith Laboratories LLC | 1 | $13 |
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.
- WaveWriter Alpha Prime 16$6,852
- Proclaim Family of SCS IPGs$2,058
- Superion ISS$1,551
- mild Device Kit$1,247
- GENERAL - THERAPIES$933
- GENERAL PAIN MANAGEMENT$294
- SPINEJACK$228
- Neuromodulation Dspsbls and Accs$131
- INTELLIS ADAPTIVESTIM$120
- WAVEWRITER ALPHA$119
- Qutenza$107
How this compares
$18,266 in reported general payments places this provider in the 85th percentile of 82 pain medicine 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 | 21 | $281 |
| Gabapentin | 18 | $123 |
| Tramadol Hcl | 14 | $99 |
| Methylprednisolone | 12 | $79 |
| Tizanidine Hcl | 15 | $70 |
Paid to pharmacies, not to this prescriber.
Other pain medicine in Greenfield
- Thomas StaussGreenfield$34K
- Joseph ReyesGreenfield$9K
- Maher FattouhGreenfield$5K
- Kostandinos TsoulfasGreenfield$2K
- Donald HarveyGreenfield$1K
- Sanjay SharmaGreenfield$1K
- Luciana BerceanuGreenfield$1K
- Alaa Abd-ElsayedMadison$1.3M
- Michael JungWest Bend$339K
- Frederick FreitagMadison$157K
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.