Ajmal Zemmar, MD
Neurological Surgery · Louisville, KYNPI 1245861392
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $23,141 of the $32,009 with a category attached, or 72.3%. 17 manufacturers reported payments, led by Stereotaxis Inc at 35.7% of the total.
Across 90 payments — averaging $355.66 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Stereotaxis Inc$11K
- Biotronik NRO, Inc.$11K
- Medtronic$3K
- Saluda Medical Americas, Inc.$1K
- Boston Scientific$1K
- Natus Medical Incorporated$1K
- plus $3K from 11 others
What the payments were for
- Consulting fees$23,14172%
- Speaking & faculty fees$1,0003%
- Travel & lodging$1,9776%
- Food & beverage$5,89118%
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 |
|---|---|---|
| Stereotaxis Inc | 2 | $11,412 |
| Biotronik NRO, Inc. | 10 | $11,310 |
| Medtronic(2 entities) | 32 | $2,540 |
| Saluda Medical Americas, Inc. | 2 | $1,327 |
| Boston Scientific | 19 | $1,236 |
| Natus Medical Incorporated | 1 | $1,000 |
| DIXI Medical USA Corp | 2 | $832 |
| Vertex | 1 | $575 |
| Neuropace, Inc. | 9 | $474 |
| Nevro Corp. | 3 | $346 |
| Synaptive Medical Inc. | 2 | $245 |
| MML US, Inc. | 1 | $152 |
| Monteris Medical Corporation | 1 | $130 |
| Vertos Medical, Inc. | 2 | $126 |
| Baxter Healthcare | 1 | $111 |
| Johnson & Johnson | 1 | $99 |
| Relievant Medsystems, Inc. | 1 | $95 |
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.
- Niobe$11,366
- Prospera$10,868
- Evoke$1,200
- STEALTHSTATION S8 PLATFORM$731
- VERCISE$417
- Omnia$254
- MAZOR X SYSTEM$230
- CLYDESDALE PTC SPINAL SYSTEM$225
- Brightmatter Guide V$173
- PERCEPT PC BRAINSENSE$170
- ReActiv8$152
- GENERAL DBS$147
- INTELLIS ADAPTIVESTIM$144
- Neuroblate$130
- Evoke SCS$127
- RNS Neurostimulator Kit$124
- SYNCHROMEDII$120
- mild Device Kit$118
- SPECTRA WAVEWRITER$114
- FLOSEAL$111
How this compares
$32,009 in reported general payments places this provider in the 85th percentile of 99 neurological surgery providers in Kentucky.
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 Louisville
- Tom YaoLouisville$405K
- Joseph NeimatLouisville$196K
- Maria KoutourousiouLouisville$189K
- Shervin DashtiLouisville$146K
- Shawn AdamsLouisville$73K
- Nathaniel ToopLouisville$56K
- Thomas AltstadtLouisville$36K
- Brian WilliamsLouisville$33K
- Redi RahmaniLouisville$29K
- Rodrigo Fernandez GajardoLouisville$24K
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.