Marco del Chiaro, MD
Surgical Oncology · Aurora, CONPI 1487134953
Payments from drug & device makers
What this record shows
This record is dominated by education: $3,000 of the $3,471 with a category attached, or 86.4%. Intuitive Surgical accounts for 98.4% of it on its own, with 1 other manufacturer making up the rest. Reporting peaked in 2020 at $3,064 and has fallen 98.2% since, to $55 in 2022.
Across 6 payments — averaging $578.50 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$3K
- Boston Scientific$55
Across 50 payments — averaging $6014.10 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.
- Haemonetics Corporation$202K
- Boston Scientific$99K
What the payments were for
- Travel & lodging$2387%
- Food & beverage$2337%
- Education$3,00086%
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 | 5 | $3,416 |
| Boston Scientific | 1 | $55 |
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.
- Da Vinci Surgical System$3,333
How this compares
$3,471 in reported general payments places this provider in the 55th percentile of 25 surgical oncology providers in Colorado.
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 |
|---|---|---|
| CreonLipase/Protease/Amylase | 58 | $193,173 |
| ZenpepLipase/Protease/Amylase | 13 | $35,446 |
| Diphenhydramine Hcl | 21 | $1,693 |
| Enoxaparin Sodium | 13 | $1,425 |
| Pantoprazole Sodium | 14 | $114 |
Paid to pharmacies, not to this prescriber.
Other surgical oncology in Aurora
- Martin McCarterAurora$17K
- John HamnerAurora$4K
- Ana GleisnerAurora$1K
- Benedetto MungoAurora$966
- Richard SchulickAurora$228
- Lauren GambleAurora$38
- Nathan PearlmanAurora$21
- Steven AhrendtAurora$0
- James GeddesAurora$0
- Eric LiuDenver$529K
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.