John Hamilton, PhD
Neurological Surgery · Fairfax, VANPI 1235191248
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $9,519 of the $13,119 with a category attached, or 72.6%. 21 manufacturers reported payments, led by Highridge Medical LLC at 27.4% of the total. 2025 is the largest year on record at $5,149, 3.0 times the $1,692 reported in 2019.
Across 93 payments — averaging $141.07 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Highridge Medical LLC$4K
- Stryker$1K
- Medtronic$1K
- Globus Medical$1K
- Zimmer Biomet$808
- Boston Scientific$794
- plus $4K from 15 others
Across 32 payments — averaging $3642.00 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.
- Pfizer$111K
- Vertex$6K
What the payments were for
- Consulting fees$3,60027%
- Food & beverage$9,51973%
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 |
|---|---|---|
| Highridge Medical LLC | 1 | $3,600 |
| Stryker | 14 | $1,383 |
| Medtronic(2 entities) | 10 | $1,145 |
| Globus Medical(2 entities) | 8 | $1,046 |
| Zimmer Biomet | 18 | $808 |
| Boston Scientific | 9 | $794 |
| Spineology Inc. | 3 | $747 |
| Johnson & Johnson | 8 | $663 |
| Vertos Medical, Inc. | 4 | $519 |
| GT Medical Technologies, Inc | 3 | $468 |
| Teva Pharmaceuticals USA, Inc. | 3 | $361 |
| Arteriocyte Medical Systems, Inc. | 1 | $273 |
| Intrinsic Therapeutics | 1 | $260 |
| Zimvie Inc. | 2 | $221 |
| Alphatec Spine, Inc | 1 | $194 |
| Icotec Medical Inc. | 1 | $160 |
| Biocomposites Inc | 1 | $130 |
| Augmedics Inc. | 2 | $121 |
| Kuros Biosciences USA, Inc | 1 | $105 |
| Si-bone, Inc. | 1 | $103 |
| Providence Medical Technology, Inc. | 1 | $21 |
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.
- The Tether$3,600
- OPTIMESH EXPANDABLE INTERBODY FUSION SYSTEM$747
- Pulse$747
- mild Device Kit$678
- GammaTile$468
- LessRay$462
- KYPHON EXPRESS II KYPHOPAK TRAY$424
- INTELLIS ADAPTIVESTIM$284
- SPECTRA WAVEWRITER$275
- Magellan$273
- BARRICAID ACD (ANNULAR CLOSURE DEVICE)$260
- GENERAL K2M PRODUCT DISCUSSION$240
- TRUMATCH$238
- LIF$194
- Bendini$190
- OZARK CERVICAL PLATE SYSTEM$172
- VADER PEDICLE SYSTEM 6.0, SCREW, Carbon/PEEK, POLYAX., FEN., O 5.5 X 45 MM$160
- VADER PEDICLE SYSTEM, ROD, Carbon/PEEK, CURVED, 6.0 R450 X 200 MM$160
- KONG-TL VBR E, EXPANDABLE BODY, L, 19 MM X 27 - 37 MM$160
- KONG-TL VBR, END PLATE, ROUND, L AND SCREW, 12 X 43 MM$160
How this compares
$13,119 in reported general payments places this provider in the 80th percentile of 156 neurological surgery providers in Virginia.
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 Fairfax
- Nilesh VyasFairfax$9K
- Sean JebrailiFairfax$7K
- Justin SmithCharlottesville$2.3M
- David VincentVirginia Beach$959K
- Mudit SharmaManassas$714K
- Ryan KelloggCharlottesville$245K
- Andrew FanousAlexandria$185K
- Bernardo OrdonezChesapeake$178K
- Parker BabingtonNorfolk$164K
- Devon LefeverChesapeake$148K
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.