Marc Casasanta, MD
Colon & Rectal Surgery · Danbury, CTNPI 1124281530
Payments from drug & device makers
What this record shows
The money is spread across several categories — speaking fees (48.7%), travel and lodging and food and beverage — rather than concentrated in one kind of arrangement. 9 manufacturers reported payments, led by Mallinckrodt Enterprises LLC at 50.6% of the total. Reporting peaked in 2019 at $5,787 and has fallen 98.9% since, to $64 in 2025.
Across 36 payments — averaging $299.48 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Mallinckrodt Enterprises LLC$5K
- Intuitive Surgical$4K
- Neptune Medical Inc.$450
- Axonics, Inc.$300
- THD America, Inc.$180
- Medtronic$130
- plus $112 from 3 others
What the payments were for
- Consulting fees$5605%
- Speaking & faculty fees$5,25049%
- Travel & lodging$3,93136%
- Food & beverage$1,04110%
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 |
|---|---|---|
| Mallinckrodt Enterprises LLC | 3 | $5,453 |
| Intuitive Surgical | 21 | $4,156 |
| Neptune Medical Inc. | 1 | $450 |
| Axonics, Inc. | 2 | $300 |
| THD America, Inc. | 1 | $180 |
| Medtronic | 4 | $130 |
| Aroa Biosurgery Incorporated | 1 | $64 |
| Ipsen Biopharmaceuticals, Inc | 2 | $30 |
| E.r. Squibb & Sons, L.L.C. | 1 | $18 |
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.
- OFIRMEV$5,375
- Da Vinci Surgical System$4,033
- Axonics$300
How this compares
$10,781 in reported general payments places this provider in the 85th percentile of 48 colon & rectal surgery providers in Connecticut.
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 |
|---|---|---|
| Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates | 35 | $2,020 |
| Neomycin Sulfate | 28 | $159 |
| Metronidazole | 31 | $64 |
Paid to pharmacies, not to this prescriber.
Other colon & rectal surgery in Danbury
- John MonsonDanbury$182K
- Stuart BussellDanbury$689
- George YavorekNew Haven$45K
- Nicole SaurFairfield$36K
- Haddon PantelNew Haven$22K
- Ryan BendlNorwalk$12K
- Anne MongiuNew Haven$10K
- Christine BartusNew Britain$9K
- Sergio Casillas-RomeroNorwich$8K
- Eric GirardFarmington$8K
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.