Joseph Assenmacher, MD
Orthopaedic Surgery · Oregon, OHNPI 1760484026
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (39.9%), travel and lodging and education — rather than concentrated in one kind of arrangement. 10 manufacturers reported payments, led by Arthrex at 59.8% of the total. Reporting peaked in 2022 at $3,146 and has fallen 95.4% since, to $144 in 2025.
Across 134 payments — averaging $75.94 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Arthrex$6K
- Rock Medical Orthopedics, Inc.$2K
- Smith+Nephew$1K
- Zimmer Biomet$519
- Johnson & Johnson$345
- Pacira Therapeutics, Inc.$96
- plus $120 from 4 others
What the payments were for
- Travel & lodging$3,71937%
- Food & beverage$4,05640%
- Education$2,40024%
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 |
|---|---|---|
| Arthrex | 70 | $6,085 |
| Rock Medical Orthopedics, Inc. | 10 | $1,756 |
| Smith+Nephew | 36 | $1,254 |
| Zimmer Biomet | 4 | $519 |
| Johnson & Johnson | 4 | $345 |
| Pacira Therapeutics, Inc. | 4 | $96 |
| Medical Device Business Services, Inc. | 3 | $70 |
| Nexus Medical Technologies LLC | 1 | $22 |
| KCI USA, Inc. | 1 | $15 |
| Ferring Pharmaceuticals Inc. | 1 | $12 |
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.
- ACTIS$319
- Biosure$286
- ACL Redux$286
- TAPESTRY$258
- mymobility Platform$149
- SIGNATURE$149
- MICRORAPTOR Knotless Anchor$149
- Clancy Anatomic Cruciate Guide$145
- Regeneten$145
- ARTHREX$134
- ALLOGRAFT$121
- SHOULDER IMPLANTS CORKSCREWS KNOTLESS$115
- Quatro X$112
- Juggerstitch$112
- Quatro Link$112
How this compares
$10,175 in reported general payments places this provider in the 70th percentile of 794 orthopaedic surgery providers in Ohio.
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 |
|---|---|---|
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 213 | $1,821 |
| Celecoxib | 57 | $1,002 |
| Meloxicam | 183 | $534 |
| Tramadol Hcl | 62 | $136 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 17 | $122 |
| Mupirocin | 14 | $48 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery in Oregon
- Reuben GobezieCleveland$12M
- Gregory BerletWorthington$9.6M
- Wael BarsoumCleveland$8.9M
- Brian CohenChillicothe$8.8M
- Joseph IannottiCleveland$7.1M
- John SontichYoungstown$3.6M
- Anthony MiniaciCleveland$3.1M
- David WelkerMiamisburg$2.8M
- Kenneth GreeneCleveland$2.6M
- Mark FroimsonCleveland$2.5M
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.