Michael Hejna, PhD
Orthopaedic Surgery · Riverside, ILNPI 1013913573
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $1,252 of the $1,678 with a category attached, or 74.6%. Stryker accounts for 67.6% of it on its own, with 9 other manufacturers making up the rest. Reporting peaked in 2019 at $1,282 and has fallen 97.3% since, to $34 in 2025. That places this record below the midpoint for orthopaedic surgery clinicians in IL, where the typical reported total is $3,100.
Across 31 payments — averaging $54.14 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Stryker$1K
- Johnson & Johnson$146
- Orthofix Medical, Inc.$141
- Osteomed LLC$69
- Abbott$67
- Medical Device Business Services, Inc.$34
- plus $86 from 4 others
What the payments were for
- Travel & lodging$39023%
- Food & beverage$1,25275%
- Education$372%
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 |
|---|---|---|
| Stryker | 13 | $1,135 |
| Johnson & Johnson | 4 | $146 |
| Orthofix Medical, Inc. | 5 | $141 |
| Osteomed LLC | 2 | $69 |
| Abbott | 1 | $67 |
| Medical Device Business Services, Inc. | 1 | $34 |
| Zimmer Biomet | 2 | $29 |
| Smith+Nephew | 1 | $24 |
| Carbofix Orthopedics Inc | 1 | $17 |
| Paragon 28, Inc. | 1 | $16 |
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.
- MAKO$761
How this compares
$1,678 in reported general payments places this provider in the 35th percentile of 844 orthopaedic surgery providers in Illinois.
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 |
|---|---|---|
| Etodolac | 161 | $4,342 |
| Celecoxib | 26 | $1,271 |
| Naproxen | 15 | $129 |
| Methylprednisolone | 15 | $117 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 17 | $100 |
| Cyclobenzaprine Hcl | 13 | $92 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 13 | $85 |
| Ibuprofen | 14 | $52 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery in Riverside
- Peter BonuttiEffingham$24.3M
- Steven HaddadGlenview$12.6M
- Aaron RosenbergChicago$12.4M
- Treg BrownHerrin$6.6M
- Wayne GoldsteinMorton Grove$4.9M
- Steven ChudikWestmont$4.1M
- Matthew SquireAurora$2.9M
- David ManningBurr Ridge$2.3M
- Ritesh ShahMorton Grove$2.3M
- Anish KadakiaChicago$2.1M
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.