Andrew Maertens, MD
Hand Surgery · Aurora, CONPI 1013379049
Payments from drug & device makers
What this record shows
15 manufacturers reported payments, led by Gemini Mountain Medical, LLC at 41.8% of the total. That places this record below the midpoint for hand surgery clinicians in CO, where the typical reported total is $4,155.
Across 37 payments — averaging $112.31 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Gemini Mountain Medical, LLC$2K
- Stryker$760
- Smith+Nephew$352
- Endo Pharmaceuticals Inc.$269
- Carbofix Orthopedics Inc$223
- Skeletal Dynamics Inc$154
- plus $660 from 9 others
What the payments were for
- Food & beverage$2,41758%
- Education$1,73842%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| Gemini Mountain Medical, LLC | 2 | $1,738 |
| Stryker | 13 | $760 |
| Smith+Nephew | 4 | $352 |
| Endo Pharmaceuticals Inc. | 2 | $269 |
| Carbofix Orthopedics Inc | 1 | $223 |
| Skeletal Dynamics Inc | 4 | $154 |
| Ossio Inc | 1 | $144 |
| Zimmer Biomet | 1 | $134 |
| Bioventus LLC | 3 | $114 |
| Medtronic | 1 | $111 |
| Acumed LLC | 1 | $78 |
| Checkpoint Surgical, Inc | 1 | $28 |
| Sonex Health, Inc. | 1 | $22 |
| Axogen | 1 | $15 |
| Baxter Healthcare | 1 | $15 |
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
$4,155 in reported general payments places this provider in the 50th percentile of 72 hand surgery 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.
Other hand surgery in Aurora
- Fraser LeversedgeAurora$326K
- Louis CatalanoAurora$61K
- Matthew BeltonAurora$12K
- Winthrop LockwoodAurora$7K
- Amy FenoglioAurora$7K
- Craig DavisAurora$2K
- Francis ScottAurora$523
- In YiLonetree$232K
- Steven TopperColorado Springs$158K
- Carlton ClinkscalesEnglewood$131K
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.