Nikola Nenadovich, MD
Orthopaedic Surgery of the Spine · Chesterton, INNPI 1487655163
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $1,024 of the $1,631 with a category attached, or 62.8%. 14 manufacturers reported payments, led by Alphatec Spine, Inc at 39.4% of the total. Reporting peaked in 2021 at $922 and has fallen 89.8% since, to $94 in 2025. That places this record below the midpoint for orthopaedic surgery of the spine clinicians in IN, where the typical reported total is $8,429.
Across 29 payments — averaging $56.24 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Alphatec Spine, Inc$643
- Centinel Spine, LLC$185
- Aesculap Implant Systems, LLC$112
- Medtronic$86
- Spinal Elements, Inc.$85
- Seaspine Orthopedics Corporation$83
- plus $437 from 8 others
What the payments were for
- Travel & lodging$60737%
- Food & beverage$1,02463%
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 |
|---|---|---|
| Alphatec Spine, Inc | 2 | $643 |
| Centinel Spine, LLC | 1 | $185 |
| Aesculap Implant Systems, LLC | 1 | $112 |
| Medtronic(2 entities) | 4 | $86 |
| Spinal Elements, Inc. | 3 | $85 |
| Seaspine Orthopedics Corporation | 1 | $83 |
| Orthofix Medical, Inc. | 2 | $81 |
| Intrinsic Therapeutics | 1 | $81 |
| DJO, LLC | 4 | $79 |
| Stryker | 1 | $52 |
| Amgen | 3 | $52 |
| Globus Medical | 2 | $43 |
| Johnson & Johnson | 1 | $33 |
| Electronic Waveform Lab, Inc. | 3 | $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.
How this compares
$1,631 in reported general payments places this provider in the 30th percentile of 48 orthopaedic surgery of the spine providers in Indiana.
See all orthopaedic surgery of the spine providers in Indiana →
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 |
|---|---|---|
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 98 | $845 |
| Prednisone | 278 | $718 |
| Diclofenac Sodium | 54 | $307 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 32 | $304 |
| Tramadol Hcl | 83 | $197 |
| Tizanidine Hcl | 69 | $170 |
| Gabapentin | 19 | $141 |
| Cephalexin | 25 | $99 |
| Cyclobenzaprine Hcl | 12 | $89 |
| Diazepam | 26 | $59 |
| Meloxicam | 24 | $55 |
| Lorazepam | 20 | $19 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery of the spine in Chesterton
- Anton ThompkinsChesterton$208K
- Rick SassoCarmel$1.6M
- David SchwartzIndianapolis$1.5M
- Zeshan HyderCrown Point$1.1M
- Gregory PoulterIndianapolis$995K
- Nitin KhannaMunster$702K
- Michael McMainsIndianapolis$686K
- Mohammad MajdNew Albany$504K
- Deepak ReddySouth Bend$496K
- Paul KraemerCarmel$276K
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.