Mark Nehler, MD
Vascular Surgery · Aurora, CONPI 1548354871
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $2,391 of the $3,399 with a category attached, or 70.4%. 14 manufacturers reported payments, led by Intuitive Surgical at 37.1% of the total. Reporting peaked in 2019 at $1,119 and has fallen 85.7% since, to $160 in 2025. That places this record below the midpoint for vascular surgery clinicians in CO, where the typical reported total is $4,981.
Across 32 payments — averaging $106.21 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$1K
- Penumbra, Inc.$403
- Bolton Medical Inc$351
- W. L. Gore & Associates, Inc.$330
- Shockwave Medical, Inc$195
- Cook Medical LLC$172
- plus $689 from 8 others
Across 477 payments — averaging $100.81 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.
- Novo Nordisk AS$32K
- Bayer$16K
What the payments were for
- Travel & lodging$1,00830%
- Food & beverage$2,39170%
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 |
|---|---|---|
| Intuitive Surgical | 9 | $1,259 |
| Penumbra, Inc. | 3 | $403 |
| Bolton Medical Inc | 4 | $351 |
| W. L. Gore & Associates, Inc. | 3 | $330 |
| Shockwave Medical, Inc | 1 | $195 |
| Cook Medical LLC | 2 | $172 |
| Abbott | 1 | $149 |
| Lemaitre Vascular, Inc. | 2 | $143 |
| Janssen Scientific Affairs, LLC | 1 | $125 |
| Boston Scientific | 1 | $119 |
| Novo Nordisk | 1 | $80 |
| Baxter Healthcare | 2 | $35 |
| Johnson & Johnson | 1 | $20 |
| Stryker | 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.
- Da Vinci Surgical System$1,066
- Indigo System$282
- Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter$195
- GORE VIABAHN VBX Balloon Expandable Endo$163
- JETI$149
- Grafts$149
- VIABAHN VBX Balloon Expandable Endoprosthesis$147
- TREO ABDOMINAL STENT-GRAFT SYSTEM$138
- XARELTO$125
- Penumbra System$122
- ELUVIA$119
How this compares
$3,399 in reported general payments places this provider in the 35th percentile of 66 vascular 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 vascular surgery in Aurora
- Rafael MalgorAurora$263K
- Donald JacobsAurora$126K
- Emily MalgorAurora$39K
- Jeniann YiAurora$34K
- Joshua GreenbergAurora$10K
- Max WohlauerAurora$10K
- Anastasia MageeAurora$3K
- Jon MatsumuraAurora$3K
- Bryce IngramAurora$1K
- Brandon Roy-GarlandDenver$190K
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.