John Corboy, MD
Neurology · Aurora, CONPI 1922045228
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $4,800 of the $7,269 with a category attached, or 66.0%. E.r. Squibb & Sons, L.L.C. accounts for 66.0% of it on its own, with 8 other manufacturers making up the rest. Reporting peaked in 2021 at $3,362 and has fallen 74.0% since, to $873 in 2024.
Across 34 payments — averaging $213.81 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- E.r. Squibb & Sons, L.L.C.$5K
- EMD Serono, Inc.$1K
- Bristol Myers Squibb$418
- Carl Zeiss Meditec USA, Inc.$304
- Novartis$295
- Sanofi$146
- plus $90 from 3 others
Across 14 payments — averaging $94,963 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.
- Novartis$824K
- EMD Serono, Inc.$506K
What the payments were for
- Consulting fees$4,80066%
- Speaking & faculty fees$2554%
- Food & beverage$1,25217%
- Education$96213%
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 |
|---|---|---|
| E.r. Squibb & Sons, L.L.C. | 2 | $4,800 |
| EMD Serono, Inc. | 5 | $1,217 |
| Bristol Myers Squibb | 18 | $418 |
| Carl Zeiss Meditec USA, Inc. | 1 | $304 |
| Novartis | 3 | $295 |
| Sanofi | 1 | $146 |
| ANI Pharmaceuticals, Inc. | 1 | $32 |
| Novartis Pharma AG | 2 | $30 |
| Amgen | 1 | $27 |
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
$7,269 in reported general payments places this provider in the 70th percentile of 334 neurology 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 |
|---|---|---|
| Gammagard LiquidImmun Glob G(Igg)/Gly/Iga Ov50 | 24 | $100,133 |
| CopaxoneGlatiramer Acetate | 12 | $83,998 |
| Dalfampridine ErDalfampridine | 64 | $38,263 |
| FingolimodFingolimod Hcl | 32 | $30,183 |
| Glatiramer Acetate | 14 | $19,627 |
| Baclofen | 100 | $3,891 |
| Gabapentin | 108 | $3,733 |
| Modafinil | 30 | $2,122 |
| Tizanidine Hcl | 65 | $909 |
| Pregabalin | 28 | $848 |
| Duloxetine Hcl | 17 | $399 |
| Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine | 11 | $356 |
| Amitriptyline Hcl | 14 | $349 |
| Nortriptyline Hcl | 13 | $215 |
| Clonazepam | 35 | $160 |
Paid to pharmacies, not to this prescriber.
Other neurology in Aurora
- Jeffrey BennettAurora$605K
- Enrique AlvarezAurora$407K
- Anna ShahAurora$157K
- Timothy VollmerAurora$136K
- Simon OhAurora$112K
- Amanda PiquetAurora$106K
- Brent MorelAurora$79K
- Drew KernAurora$68K
- Ondrea TimmermannAurora$33K
- Thomas RagoleAurora$31K
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.