David Vansickle, MD
Neurological Surgery · Littleton, CONPI 1639216997
Payments from drug & device makers
What this record shows
The money is spread across several categories — speaking fees (56.3%), food and beverage and travel and lodging — rather than concentrated in one kind of arrangement. Abbott accounts for 77.9% of it on its own, with 9 other manufacturers making up the rest. Reporting peaked in 2023 at $9,608 and has fallen 91.4% since, to $830 in 2025.
Across 163 payments — averaging $132.68 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Abbott$17K
- Stryker$3K
- Zap Surgical Systems, Inc.$800
- Boston Scientific$351
- Samsung HME America, Inc.$179
- Clearpoint Neuro, Inc.$132
- plus $116 from 4 others
Across 25 payments — averaging $1067.52 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.
- Abbott$27K
What the payments were for
- Speaking & faculty fees$12,17556%
- Travel & lodging$4,27620%
- Food & beverage$5,15624%
- Entertainment$200%
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 |
|---|---|---|
| Abbott | 126 | $16,845 |
| Stryker | 14 | $3,205 |
| Zap Surgical Systems, Inc. | 6 | $800 |
| Boston Scientific | 10 | $351 |
| Samsung HME America, Inc. | 1 | $179 |
| Clearpoint Neuro, Inc. | 1 | $132 |
| Orthofix Medical, Inc. | 2 | $48 |
| Novocure Inc. | 1 | $29 |
| Integra Lifesciences Corporation | 1 | $21 |
| Medtronic | 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.
- PROCLAIM$10,355
- Neuromodulation Dspsbls and Accs$1,977
- EVEREST SPINAL SYSTEM$1,802
- INFINITY$1,621
- N/A$1,346
- ZAP-X MV IMAGER$610
- ZAP-X TREATMENT PLANNING SOFTWARE$610
- ZAP-X TREATMENT DELIVERY SOFTWARE$610
- ZAP-X RADIOSURGERY SYSTEM$610
- Infinity DBS Pulse Generators$485
- WaveWriter Alpha Prime 16$148
- CLEARPOINT$132
- Zap-X$121
How this compares
$21,627 in reported general payments places this provider in the 70th percentile of 149 neurological 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 neurological surgery in Littleton
- Jason McGowanLittleton$117K
- Angela BohnenLittleton$85K
- Abhijeet GummadavelliLittleton$47K
- Wissam AsfahaniLittleton$40K
- Sharad RajpalBoulder$2.8M
- Chad PrusmackLone Tree$2.1M
- Timothy WirtFort Collins$581K
- Donn TurnerFort Collins$581K
- Ernest BraxtonEdwards$549K
- Bradley DuhonLone Tree$386K
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.