David Greenwald
Neurological Surgery · St Augustine, FLNPI 1962516310
Payments from drug & device makers
What this record shows
This record is dominated by royalties or licence payments: $356,083 of the $404,712 with a category attached, or 88.0%. Genesys Orthopedics Systems, L.L.C. accounts for 88.0% of it on its own, with 29 other manufacturers making up the rest. Reporting peaked in 2019 at $164,858 and has fallen 80.2% since, to $32,578 in 2025. Among neurological surgery clinicians in FL with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 137 payments — averaging $2954.11 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Genesys Orthopedics Systems, L.L.C.$356K
- Aegis Spine, Inc.$17K
- Osteocentric Technologies, Inc.$11K
- Surgentec$8K
- Providence Medical Technology, Inc.$2K
- Medacta USA, Inc.$2K
- plus $7K from 24 others
What the payments were for
- Royalty or licence$356,08388%
- Consulting fees$34,2638%
- Travel & lodging$6,0551%
- Food & beverage$6,6242%
- Education$1,6880%
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 |
|---|---|---|
| Genesys Orthopedics Systems, L.L.C. | 8 | $356,083 |
| Aegis Spine, Inc. | 1 | $17,000 |
| Osteocentric Technologies, Inc. | 27 | $11,265 |
| Surgentec | 4 | $8,357 |
| Providence Medical Technology, Inc. | 7 | $2,357 |
| Medacta USA, Inc. | 14 | $2,300 |
| Stryker | 12 | $2,186 |
| Centinel Spine, LLC | 4 | $938 |
| Spineology Inc. | 1 | $932 |
| Republic Spine | 10 | $913 |
| 4web, Inc. | 7 | $898 |
| Alevio, LLC | 8 | $384 |
| Boston Scientific | 4 | $242 |
| Wenzel Spine, Inc. | 2 | $139 |
| Spine Wave, Inc. | 2 | $120 |
| Johnson & Johnson | 8 | $111 |
| Intrinsic Therapeutics | 2 | $110 |
| VGI Medical, LLC | 1 | $76 |
| Si-bone, Inc. | 2 | $55 |
| Spinal Elements, Inc. | 2 | $50 |
| Pfizer | 2 | $44 |
| Portola Pharmaceuticals, LLC | 1 | $26 |
| Avanos Medical | 1 | $24 |
| DJO, LLC | 1 | $22 |
| Acelrx Pharmaceuticals, Inc. | 1 | $19 |
| Smith+Nephew | 1 | $17 |
| Cvrx, Inc. | 1 | $15 |
| Surgalign Spine Technologies, Inc. | 1 | $15 |
| Nevro Corp. | 1 | $11 |
| Ulrich Medical USA, Inc. | 1 | $5 |
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.
- TiLock$170,803
- OsteoCentric 4.0 x 130mm LOCKING BONE SCREW FASTENER ST$10,444
- ION$5,138
- ION Facet Screw System$3,125
- CAVUX Cervical Cage$2,152
- DTRAX Spinal System$2,152
- ALLY Bone Screw$2,152
- BIOLOGIX Allograft Bone$2,152
- MYSPINE$2,147
- OPTIMESH EXPANDABLE INTERBODY FUSION SYSTEM$932
- GENERAL K2M PRODUCT DISCUSSION$745
- SPINE TRUSS SYSTEM$741
- ANCHOR C$738
- PRODISC L$466
- PRODISC C VIVO$393
- Dark Star$325
- ReLive$209
- CASCADIA$183
- XIA$158
- VariLift-C$128
How this compares
$404,712 in reported general payments places this provider in the 95th percentile of 556 neurological surgery providers in Florida.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 16 | $154 |
Paid to pharmacies, not to this prescriber.
Other neurological surgery in St Augustine
- Stephen ParkerJacksonville$18.7M
- Eric PetersonMiami$10.1M
- Brian SnellingBoca Raton$10M
- Kim ManwaringOrlando$5M
- Paul SawinWinter Park$3M
- John MainOcala$2.8M
- Michael WangMiami$2.2M
- Andrew CannestraJacksonville$1.6M
- Rohit VasanTampa$1.5M
- Wilson AsforaMiami$1.3M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.