Stephen Kayiaros, MD
Orthopaedic Surgery · Princeton, NJNPI 1669699542
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $25,451 of the $30,645 with a category attached, or 83.1%. 15 manufacturers reported payments, led by Omnilife Science, Inc at 38.3% of the total. Reporting peaked in 2019 at $11,290 and has fallen 64.2% since, to $4,036 in 2025.
Across 92 payments — averaging $333.09 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Omnilife Science, Inc$12K
- Depuy Synthes Products, Inc.$6K
- Medical Device Business Services, Inc.$5K
- Corin USA$5K
- Stryker$1K
- Johnson & Johnson$733
- plus $1K from 9 others
Across 6 payments — averaging $3112.83 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.
- Medical Device Business Services, Inc.$19K
What the payments were for
- Consulting fees$25,45183%
- Travel & lodging$1,3504%
- Food & beverage$3,84313%
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 |
|---|---|---|
| Omnilife Science, Inc | 16 | $11,723 |
| Depuy Synthes Products, Inc. | 4 | $5,904 |
| Medical Device Business Services, Inc. | 7 | $4,976 |
| Corin USA | 8 | $4,957 |
| Stryker | 13 | $1,001 |
| Johnson & Johnson | 19 | $733 |
| Zimmer Biomet | 7 | $602 |
| Avanos Medical | 11 | $243 |
| Abbott | 1 | $157 |
| Biocomposites Inc | 1 | $107 |
| KCI USA, Inc. | 1 | $97 |
| Nextstep Arthropedix, LLC | 1 | $87 |
| Nevro Corp. | 1 | $20 |
| Baudax Bio Inc. | 1 | $19 |
| Vertex | 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.
- Icona Stem (FKA ABC Stem)$6,906
- ATTUNE$6,130
- Corin Hips$710
- OMNIBotics 3.0$450
- GAMMA$162
- INSIGNIA$159
- MAKO$159
- TRITANIUM$159
- VARIAX$157
- PROCLAIM$157
- T2$146
- ROSA$145
- Arcos$122
- AXSOS$122
- Stimulan$107
How this compares
$30,645 in reported general payments places this provider in the 85th percentile of 587 orthopaedic surgery providers in New Jersey.
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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Celecoxib | 188 | $5,692 |
| Meloxicam | 119 | $404 |
| Methylprednisolone | 49 | $249 |
| Oxycodone Hcl | 38 | $172 |
| Tramadol Hcl | 46 | $145 |
| Gabapentin | 15 | $143 |
| Dexamethasone | 21 | $116 |
| Amoxicillin | 26 | $31 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery in Princeton
- Jeffrey AbramsPrinceton$1.5M
- Brian CulpPrinceton$382K
- Hari BezwadaPrinceton$346K
- Frederick SongPrinceton$64K
- Michael KellyHackensack$9.7M
- Mark HartzbandParamus$9.4M
- Randal BetzLawrenceville$3M
- Luke AustinSewell$2.9M
- Kenneth MontgomeryMorristown$2.7M
- Zachary PostEgg Harbor Township$1.7M
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.