John Gashkoff, MD
Interventional Pain Medicine · Naperville, ILNPI 1356309694
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $9,505 of the $11,848 with a category attached, or 80.2%. It is spread thinly across 30 manufacturers, the largest accounting for just 23.6% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2019 at $3,611 and has fallen 57.9% since, to $1,522 in 2025.
Across 270 payments — averaging $43.88 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Abbott$3K
- Nevro Corp.$2K
- Boston Scientific$2K
- Saluda Medical Americas, Inc.$945
- Relievant Medsystems, Inc.$912
- Medtronic$485
- plus $3K from 24 others
What the payments were for
- Travel & lodging$1,79015%
- Food & beverage$9,50580%
- Education$5535%
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 |
|---|---|---|
| Abbott | 53 | $2,797 |
| Nevro Corp. | 46 | $2,403 |
| Boston Scientific | 48 | $1,698 |
| Saluda Medical Americas, Inc. | 14 | $945 |
| Relievant Medsystems, Inc. | 6 | $912 |
| Medtronic(2 entities) | 18 | $485 |
| Biotronik NRO, Inc. | 21 | $335 |
| Globus Medical | 3 | $293 |
| Vertiflex, Inc. | 7 | $249 |
| SPR Therapeutics, Inc | 6 | $217 |
| MML US, Inc. | 2 | $169 |
| Si-bone, Inc. | 3 | $145 |
| Nalu Medical, Inc. | 2 | $144 |
| Tersera Therapeutics LLC | 5 | $141 |
| Curonix LLC | 3 | $120 |
| Medwest Associates | 1 | $117 |
| Spinal Simplicity, LLC | 5 | $103 |
| Averitas Pharma Inc. | 3 | $101 |
| Stimwave Technologies Incorporated | 6 | $86 |
| Stryker | 3 | $83 |
| Vertos Medical, Inc. | 1 | $63 |
| Pfizer | 3 | $54 |
| Johnson & Johnson(2 entities) | 2 | $40 |
| Amgen(2 entities) | 2 | $29 |
| AbbVie | 1 | $27 |
| Fisher & Paykel Healthcare Inc | 1 | $25 |
| Inspire Medical Systems, Inc. | 1 | $21 |
| Vertex | 1 | $17 |
| Foundation Fusion Solutions, LLC | 2 | $14 |
| Arteriocyte Medical Systems, Inc. | 1 | $14 |
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.
- Intracept$3,286
- Senza Spinal Cord Stimulation System$1,351
- Evoke$425
- Evoke SCS$325
- Proclaim IPG$318
- INTELLIS ADAPTIVESTIM$189
- ALIF$160
- SPRINT PNS System$141
- Superion ISS$130
- ReActiv8$125
- PROCLAIM$124
- Nalu Neurostimulation System$121
- GENERAL PAIN MANAGEMENT$116
- SPECTRA WAVEWRITER$108
- Senza$103
How this compares
$11,848 in reported general payments places this provider in the 80th percentile of 93 interventional pain medicine providers in Illinois.
See all interventional pain medicine providers in Illinois →
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 |
|---|---|---|
| OxycontinOxycodone Hcl | 18 | $8,346 |
| Xtampza ErOxycodone Myristate | 12 | $4,274 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 84 | $4,047 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 210 | $3,564 |
| Gabapentin | 114 | $1,857 |
| Morphine Sulfate ErMorphine Sulfate | 51 | $1,787 |
| Pregabalin | 58 | $1,742 |
| Fentanyl | 12 | $1,237 |
| Tramadol Hcl | 98 | $538 |
| Baclofen | 22 | $238 |
| Hydromorphone Hcl | 19 | $232 |
| Acetaminophen-CodeineAcetaminophen With Codeine | 17 | $180 |
| Duloxetine Hcl | 17 | $174 |
| Methylprednisolone | 37 | $153 |
| Cyclobenzaprine Hcl | 23 | $139 |
Paid to pharmacies, not to this prescriber.
Other interventional pain medicine in Naperville
- Paul ManganelliNaperville$14K
- Yousuf SayeedNaperville$13K
- Alexander FeoktistovNorthfield$922K
- Timothy LubenowChicago$556K
- Sandeep AminChicago$430K
- Matthew JaycoxChicago$123K
- Hong VoChicago$91K
- Asokumar BuvanendranChicago$52K
- Ramsin BenyaminBloomington$32K
- Adam YoungChicago$29K
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.