John Sampson, MD
Neurological Surgery · Aurora, CONPI 1720158553
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $75,003 of the $78,330 with a category attached, or 95.8%. Blue Earth Diagnostics accounts for 95.0% of it on its own, with 2 other manufacturers making up the rest. 2023 is the largest year on record at $44,973, more than ten times the $3,328 reported in 2019.
Across 13 payments — averaging $6025.42 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Blue Earth Diagnostics$74K
- Stemline Therapeutics Inc.$4K
- Medtronic$28
Across 4 payments — averaging $3187.50 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.
- Medtronic$13K
What the payments were for
- Consulting fees$75,00396%
- Speaking & faculty fees$3,3004%
- Food & beverage$280%
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 |
|---|---|---|
| Blue Earth Diagnostics | 11 | $74,403 |
| Stemline Therapeutics Inc. | 1 | $3,900 |
| Medtronic | 1 | $28 |
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.
- Axumin$74,403
How this compares
$78,330 in reported general payments places this provider in the 85th 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 Aurora
- Peter FecciAurora$170K
- Joshua SeinfeldAurora$118K
- David CaseAurora$106K
- Ashraf YoussefAurora$95K
- Allen WaziriAurora$86K
- Yasuaki HarasakiAurora$75K
- Steven OjemannAurora$59K
- Tareq YaseenAurora$37K
- Ahmed HelalAurora$37K
- Fabio GrassiaAurora$33K
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.