Karol Zakalik, MD
Neurological Surgery · Royal Oak, MINPI 1609867985
Payments from drug & device makers
Across 134 payments — averaging $61.71 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$2K
- GT Medical Technologies, Inc$2K
- Livanova USA, Inc.$937
- UCB, Inc.$528
- Stryker$467
- Si-bone, Inc.$302
- plus $2K from 22 others
What the payments were for
- Consulting fees$1,00012%
- Travel & lodging$88911%
- Food & beverage$6,38177%
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 |
|---|---|---|
| Medtronic(2 entities) | 16 | $2,213 |
| GT Medical Technologies, Inc | 5 | $1,684 |
| Livanova USA, Inc. | 39 | $937 |
| UCB, Inc. | 21 | $528 |
| Stryker | 4 | $467 |
| Si-bone, Inc. | 4 | $302 |
| Johnson & Johnson | 4 | $278 |
| Longeviti Neuro Solutions Inc | 1 | $270 |
| Providence Medical Technology, Inc. | 4 | $188 |
| Aesculap, Inc. | 6 | $178 |
| Pacira Pharmaceuticals Incorporated | 1 | $146 |
| Mimedx Group, Inc. | 1 | $144 |
| Augmedics Inc. | 1 | $141 |
| Kuros Biosciences USA, Inc | 1 | $141 |
| Innovasis Inc | 2 | $96 |
| Azurity Pharmaceuticals, Inc. | 5 | $90 |
| Xtant Medical Inc | 1 | $90 |
| Surgalign Spine Technologies, Inc. | 2 | $60 |
| Greenwich Biosciences, Inc. | 2 | $50 |
| Smith+Nephew | 2 | $49 |
| Theragen, Inc. | 3 | $43 |
| DJO, LLC | 2 | $40 |
| AstraZeneca | 1 | $30 |
| Arbor Pharmaceuticals, Inc. | 2 | $25 |
| Acera Surgical, Inc. | 1 | $23 |
| Solventum Corporation | 1 | $21 |
| Globus Medical | 1 | $20 |
| Integra Lifesciences Corporation | 1 | $17 |
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.
- GammaTile$1,537
- ACTIVA$994
- Xvision$705
- UNIVERSAL NEURO 3$391
- VNS THERAPY SENTIVA MODEL 1000 GENERATOR$284
- CD HORIZON SPINAL SYSTEM$280
- CLEARFIT$270
- INVISISHUNT$270
- NA$265
- DURAMATRIX$265
- Briviact$250
- MAZOR X SYSTEM$151
- Endoskeleton-L$146
- EXPAREL$146
- Iovera$146
- CAVUX Cervical Cage$141
- DTRAX Spinal System$141
- ALLY Bone Screw$141
- BIOLOGIX Allograft Bone$141
- MagnetOs$141
How this compares
$8,270 in reported general payments places this provider in the 65th percentile of 256 neurological surgery providers in Michigan.
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 Royal Oak
- Daniel FahimRoyal Oak$609K
- Christopher EliaRoyal Oak$34K
- Frank LamarcaAnn Arbor$4.9M
- Justin SingerGrand Rapids$1.5M
- John KellerGrand Rapids$1.1M
- Jayant JagannathanTroy$685K
- Timothy SpencerBattle Creek$543K
- Daniel OrringerAnn Arbor$500K
- Noojan KazemiAnn Arbor$450K
- Vittorio MorrealeShelby Twp$439K
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.