Marcelo Siqueira, MD
Orthopaedic Surgery · Plymouth, MANPI 1790164978
Payments from drug & device makers
What this record shows
This record is dominated by education: $6,296 of the $9,458 with a category attached, or 66.6%. Smith+Nephew accounts for 66.3% of it on its own, with 3 other manufacturers making up the rest. Reporting peaked in 2021 at $3,481 and has fallen 94.3% since, to $200 in 2025.
Across 53 payments — averaging $178.46 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Smith+Nephew$6K
- Zimmer Biomet$2K
- Stryker$1K
- Johnson & Johnson$112
What the payments were for
- Travel & lodging$1,54116%
- Food & beverage$1,62217%
- Education$6,29667%
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 | 3 | $6,270 |
| Zimmer Biomet | 18 | $1,778 |
| Stryker | 30 | $1,299 |
| Johnson & Johnson | 2 | $112 |
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.
How this compares
$9,458 in reported general payments places this provider in the 65th 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Cephalexin | 39 | $330 |
| Meloxicam | 132 | $297 |
| Oxycodone Hcl | 35 | $165 |
| Tramadol Hcl | 35 | $87 |
| Ondansetron Hcl | 16 | $64 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery in Plymouth
- Walter StanwoodPlymouth$203K
- Paul TornettaBoston$16.3M
- Thomas ThornhillBoston$12M
- Stephen MurphyRoxbury Crossing$8M
- Andrew FreibergBoston$5.9M
- Jon WarnerBoston$5.4M
- Wolfgang FitzBoston$3.7M
- Brian KwonWaltham$1.9M
- Simon ChaoNorth Easton$1.6M
- Scott SigmanNorth Chelmsford$1.4M
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.