Michael Kain, MD
Orthopaedic Surgery · Boston, MANPI 1104092055
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $111,650 of the $171,319 with a category attached, or 65.2%. Smith+Nephew accounts for 88.7% of it on its own, with 12 other manufacturers making up the rest. Among orthopaedic surgery clinicians in MA with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 226 payments — averaging $758.05 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Smith+Nephew$152K
- Arthrex$8K
- Kairos Surgical Inc$4K
- Elite Orthopedics, LLC$3K
- Stryker$2K
- Zimmer Biomet$475
- plus $991 from 7 others
Across 1 payment — averaging $74.98 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.
- Aesculap Implant Systems, LLC$75
What the payments were for
- Consulting fees$24,52514%
- Speaking & faculty fees$111,65065%
- Travel & lodging$17,59510%
- Food & beverage$9,2625%
- Education$8,2885%
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 |
|---|---|---|
| Smith+Nephew | 109 | $151,939 |
| Arthrex | 44 | $8,412 |
| Kairos Surgical Inc | 15 | $4,401 |
| Elite Orthopedics, LLC | 2 | $3,468 |
| Stryker | 32 | $1,633 |
| Zimmer Biomet | 10 | $475 |
| Banner Surgical Solutions, Inc | 3 | $249 |
| Medical Device Business Services, Inc. | 4 | $161 |
| Conformis, Inc. | 1 | $158 |
| Aesculap Implant Systems, LLC | 2 | $143 |
| Biotissue Holdings Inc. | 2 | $118 |
| Globus Medical | 1 | $85 |
| Pacira Pharmaceuticals Incorporated | 1 | $77 |
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.
- EVOS$141,500
- TRIGEN InterTAN$49,881
- TRIGEN$38,769
- EVOS MINI$35,866
- CANNULATED SCREWS$27,313
- REDAPT$25,121
- TRIGEN Meta-Nail$23,758
- Peri-Loc$18,277
- META TAN$16,800
- Peri-Loc VLP$9,758
- TRIGEN Femoral (FAN/TAN/Meta Nail)$9,502
- Peri-Loc PFP$9,200
- Jet-X$7,600
- Taylor Spatial Frame$6,352
- Cadence$3,800
- TWINFIX$3,800
- SPATIAL FRAME$3,800
- KVAC$1,627
- POLARSTEM$1,600
- TRIGEN Sureshot$558
How this compares
$171,319 in reported general payments places this provider in the 95th percentile of 542 orthopaedic 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 orthopaedic surgery in Boston
- Paul TornettaBoston$16.3M
- Thomas ThornhillBoston$12M
- Andrew FreibergBoston$5.9M
- Jon WarnerBoston$5.4M
- Wolfgang FitzBoston$3.7M
- John KwonBoston$663K
- Christopher ChiodoBoston$539K
- Andrew WhiteBoston$438K
- Carl TalmoBoston$315K
- Nishant SunejaBoston$161K
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.