Brian Gantwerker
Neurological Surgery · Santa Monica, CANPI 1609842715
Payments from drug & device makers
Across 77 payments — averaging $179.31 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medical Device Business Services, Inc.$4K
- Davol Inc.$3K
- Spineology Inc.$2K
- Remex Medical USA Inc$2K
- Medtronic$883
- GS Solutions, Inc.$750
- plus $2K from 17 others
Across 1 payment — averaging $1875.00 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.
- GS Solutions, Inc.$2K
What the payments were for
- Consulting fees$4,70534%
- Speaking & faculty fees$3,75027%
- Travel & lodging$2,75020%
- Food & beverage$2,60319%
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 |
|---|---|---|
| Medical Device Business Services, Inc. | 6 | $3,792 |
| Davol Inc. | 2 | $3,019 |
| Spineology Inc. | 9 | $1,542 |
| Remex Medical USA Inc | 1 | $1,500 |
| Medtronic(2 entities) | 13 | $883 |
| GS Solutions, Inc. | 1 | $750 |
| Globus Medical(2 entities) | 8 | $668 |
| Brainlab, Inc. | 3 | $478 |
| Zimmer Biomet | 5 | $212 |
| Spinal Elements, Inc. | 1 | $150 |
| Stryker | 5 | $138 |
| Johnson & Johnson | 6 | $135 |
| Si-bone, Inc. | 3 | $92 |
| Surgalign Spine Technologies, Inc. | 3 | $90 |
| Nevro Corp. | 3 | $78 |
| Spinesmith Holdings, LLC | 1 | $63 |
| Zimvie Inc. | 1 | $54 |
| Spineart USA Inc | 1 | $36 |
| GE HealthCare | 1 | $30 |
| Lemaitre Vascular, Inc. | 1 | $27 |
| Koh Young America, Inc. | 1 | $24 |
| Augmedics Inc. | 1 | $24 |
| Arteriocyte Medical Systems, Inc. | 1 | $23 |
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.
- CONFIDENCE SPINAL CEMENT SYSTEM$3,150
- SYNFLATE$3,150
- OPTIMESH EXPANDABLE INTERBODY FUSION SYSTEM$1,369
- O-ARM-ST$514
- BRAINLAB$499
- ALIF$259
- XLIF$259
- MaXcess$164
- CREO Addition$162
- Medical Device$150
How this compares
$13,807 in reported general payments places this provider in the 60th percentile of 773 neurological surgery providers in California.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Gabapentin | 26 | $213 |
| Tizanidine Hcl | 12 | $79 |
| Pantoprazole Sodium | 16 | $62 |
Paid to pharmacies, not to this prescriber.
Other neurological surgery in Santa Monica
- Daniel KellySanta Monica$477K
- Geoffrey ManleySan Francisco$24.9M
- Christopher AmesSan Francisco$7.1M
- Jamshid SalehRedding$4.1M
- Bruce McCormackSan Francisco$3.9M
- Andrew SchreiberSanta Ana$3.9M
- Larry KhooLos Angeles$3M
- Jennie TaylorSan Francisco$2.7M
- Joseph CiacciSan Diego$2.6M
- Nicholas ButowskiSan Francisco$2.4M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.