Matthew Karam, MD
Orthopaedic Trauma · Iowa City, IANPI 1790993160
Payments from drug & device makers
What this record shows
This record is dominated by other: $127,751 of the $130,928 with a category attached, or 97.6%. Johnson & Johnson accounts for 98.1% of it on its own, with 3 other manufacturers making up the rest. Reporting peaked in 2022 at $127,766 and has fallen 99.5% since, to $626 in 2025.
Across 40 payments — averaging $3273.19 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Johnson & Johnson$128K
- Zimmer Biomet$2K
- Philips North America LLC$600
- Smith+Nephew$128
What the payments were for
- Consulting fees$6000%
- Food & beverage$2,5762%
- Other$127,75198%
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 |
|---|---|---|
| Johnson & Johnson | 17 | $128,385 |
| Zimmer Biomet | 21 | $1,815 |
| Philips North America LLC | 1 | $600 |
| Smith+Nephew | 1 | $128 |
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.
- (9768) Other actvitities$600
- Affixus$275
- Persona$217
- Arcos$179
- MOTOBAND$178
- mymobility Platform$150
- TAPESTRY$150
- ROSA$140
- TRIGEN InterTAN$128
- TRIGEN Femoral (FAN/TAN/Meta Nail)$128
- TRIGEN Meta-Nail$128
- TRIGEN Sureshot$128
- TFN ADVANCED$109
- A.L.P.S.$108
- VA-LCP$103
How this compares
Too few orthopaedic trauma providers in Iowato place this figure against a meaningful peer group, so we don't.
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 orthopaedic trauma in Iowa City
- James NepolaIowa City$16K
- Matthew HogueIowa City$5K
- Michael WilleyIowa City$4K
- John MarshIowa City$3K
- Matthew HerringDes Moines$100K
- Kamaldeen AderibigbeDes Moines$31K
- Khushdeep VigDes Moines$14K
- Chinedu NwosaDes Moines$10K
- James PapeCedar Rapids$97
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.