Constantinos Constantinou, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) · Southbridge, MANPI 1871551978
Payments from drug & device makers
What this record shows
This record is dominated by education: $8,614 of the $9,028 with a category attached, or 95.4%. Intuitive Surgical accounts for 96.1% of it on its own, with 3 other manufacturers making up the rest. Reporting peaked in 2022 at $8,696 and has fallen 99.7% since, to $23 in 2025.
Across 20 payments — averaging $451.38 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$9K
- Abbott$204
- Immunogen, Inc.$127
- Medtronic$23
Across 2 payments — averaging $7020.20 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.
- Stryker$14K
What the payments were for
- Food & beverage$4145%
- Education$8,61495%
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 |
|---|---|---|
| Intuitive Surgical | 9 | $8,673 |
| Abbott | 4 | $204 |
| Immunogen, Inc. | 6 | $127 |
| Medtronic | 1 | $23 |
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.
- DAVINCI XI$8,500
- ASSURITY$164
How this compares
$9,028 in reported general payments places this provider in the 60th percentile of 171 thoracic surgery (cardiothoracic vascular surgery) providers in Massachusetts.
See all thoracic surgery (cardiothoracic vascular 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 |
|---|---|---|
| Gabapentin | 17 | $133 |
| Oxycodone Hcl | 18 | $44 |
| Cyclobenzaprine Hcl | 14 | $30 |
Paid to pharmacies, not to this prescriber.
Other thoracic surgery (cardiothoracic vascular surgery) in Southbridge
- Elliot ServaisBurlington$689K
- Daniel EngelmanSpringfield$607K
- Daniel RaessBoxford$429K
- Lana Schumacher BealBoston$254K
- Sidney LevitskyBoston$248K
- Robert ThurerBoston$229K
- Margaret MarshallBoston$122K
- Pedro del NidoBoston$119K
- Akinobu ItohBoston$102K
- Amy HackmannBoston$80K
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.