Mark Slovenkai, MD
Foot and Ankle Surgery · Waltham, MANPI 1871530980
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (38.0%), speaking fees and food and beverage — rather than concentrated in one kind of arrangement. 16 manufacturers reported payments, led by Ascension Orthopedics, Inc. at 30.3% of the total. Reporting peaked in 2019 at $7,172 and has fallen 98.0% since, to $142 in 2025. Among foot and ankle surgery clinicians in MA with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 41 payments — averaging $352.60 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Ascension Orthopedics, Inc.$4K
- Integra Lifesciences Corporation$4K
- Restor3d, Inc.$2K
- Arthrex$2K
- Stryker$1K
- Paragon 28, Inc.$244
- plus $426 from 10 others
What the payments were for
- Consulting fees$5,50038%
- Speaking & faculty fees$4,37530%
- Travel & lodging$9396%
- Food & beverage$1,88413%
- Education$1,75812%
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 |
|---|---|---|
| Ascension Orthopedics, Inc. | 2 | $4,375 |
| Integra Lifesciences Corporation | 8 | $4,350 |
| Restor3d, Inc. | 7 | $2,497 |
| Arthrex | 4 | $1,504 |
| Stryker(2 entities) | 6 | $1,060 |
| Paragon 28, Inc. | 1 | $244 |
| Smith+Nephew | 2 | $165 |
| Tenex Health Inc. | 1 | $60 |
| Orthofix Medical, Inc. | 3 | $56 |
| Vertex | 1 | $30 |
| Kairos Surgical Inc | 1 | $29 |
| Siemens Medical Solutions USA, Inc. | 1 | $20 |
| Molnlycke Health Care US, LLC | 1 | $19 |
| Bioventus LLC | 1 | $17 |
| DJO, LLC | 1 | $16 |
| Johnson & Johnson | 1 | $14 |
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.
- SALTO TALARIS TOTAL ANKLE PROSTHESIS$8,520
- PANTA NAIL$6,520
- TOTAL FOOT SYSTEM$6,520
- CADENCE ANKLE REPLACEMENT SYSTEM$6,520
- PANTA 2 ARTHRODESIS NAIL SYSTEM$2,000
- INFINITY$636
- PROPHECY$293
- INBONE$293
- N/A$137
- Actishield$108
- CARTIVA$100
How this compares
$14,456 in reported general payments places this provider in the 90th percentile of 122 foot and ankle surgery providers in Massachusetts.
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 foot and ankle surgery in Waltham
- Harry SchneiderCambridge$174K
- Craig LareauSpringfield$115K
- David SipalaBrighton$94K
- Philip BasileCambridge$90K
- Michael SgangaNatick$90K
- Joseph FleckNorth Chelmsford$35K
- Michael SkoniecznyPlymouth$33K
- Richard BakerHyannis$16K
- Jaeyoung KimBoston$14K
- John MarcouxBrighton$13K
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.