Wei Tseng
Foot Surgery · Boston, MANPI 1548527518
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (42.5%), education and food and beverage — rather than concentrated in one kind of arrangement. 8 manufacturers reported payments, led by Kairos Surgical Inc at 59.8% of the total. Reporting peaked in 2021 at $1,215 and has fallen 97.6% since, to $30 in 2025.
Across 20 payments — averaging $168.18 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Kairos Surgical Inc$2K
- Biotissue Holdings Inc.$617
- Arthrex$239
- Smith+Nephew$150
- Organogenesis Inc.$147
- Integra Lifesciences Corporation$144
- plus $55 from 2 others
Across 1 payment — averaging $1389.71 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Biotissue Holdings Inc.$1K
What the payments were for
- Speaking & faculty fees$1194%
- Travel & lodging$1,43143%
- Food & beverage$61418%
- Education$1,20036%
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 |
|---|---|---|
| Kairos Surgical Inc | 10 | $2,013 |
| Biotissue Holdings Inc. | 1 | $617 |
| Arthrex | 1 | $239 |
| Smith+Nephew | 1 | $150 |
| Organogenesis Inc. | 2 | $147 |
| Integra Lifesciences Corporation | 3 | $144 |
| Medtronic | 1 | $30 |
| Bone Support Inc. | 1 | $26 |
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.
- Prokera$617
- AmnioGraft$617
- AmnioGuard$617
- Stravix$150
- Grafix$150
- STRAVIX PL$150
- GRAFIX PL$150
- Apligraf$119
- Dermagraft$119
- Puraply/Affinity/NuTech$119
How this compares
$3,364 in reported general payments places this provider in the 80th percentile of 41 foot 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Ketoconazole | 577 | $14,763 |
| Econazole Nitrate | 58 | $2,896 |
| Ammonium Lactate | 111 | $2,429 |
| Diclofenac Sodium | 62 | $1,744 |
| Ciclopirox | 75 | $1,709 |
| Clotrimazole | 63 | $1,531 |
| Gabapentin | 28 | $231 |
| Mupirocin | 13 | $172 |
| Methylprednisolone | 16 | $137 |
| Oxycodone Hcl | 18 | $119 |
| Tizanidine Hcl | 13 | $105 |
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 12 | $101 |
Paid to pharmacies, not to this prescriber.
Other foot surgery in Boston
- Adam LandsmanBoston$385K
- Christopher LockeBoston$6K
- Justin OgbonnaBoston$4K
- Vitaliy VolanskyBoston$1K
- Jordana SzpiroBoston$734
- Mark RoseNatick$9K
- Jamey AllenWoburn$8K
- Ewald MendeszoonWest Roxbury$6K
- Jurgen FernandezLynn$4K
- Neil FeldmanWorcester$4K
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.