Derek Semaan, MD
Orthopaedic Surgery · Ann Arbor, MINPI 1679922876
Payments from drug & device makers
What this record shows
The money is spread across several categories — education (35.0%), travel and lodging and food and beverage — rather than concentrated in one kind of arrangement. Zimmer Biomet accounts for 60.9% of it on its own, with 3 other manufacturers making up the rest. Reporting peaked in 2023 at $1,106 and has fallen 73.9% since, to $289 in 2025. That places this record below the midpoint for orthopaedic surgery clinicians in MI, where the typical reported total is $3,012.
Across 25 payments — averaging $97.18 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Zimmer Biomet$1K
- Medical Device Business Services, Inc.$851
- Ortho Development Corporation$71
- Stryker$28
What the payments were for
- Consulting fees$472%
- Travel & lodging$81534%
- Food & beverage$71729%
- Education$85135%
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 |
|---|---|---|
| Zimmer Biomet | 17 | $1,479 |
| Medical Device Business Services, Inc. | 6 | $851 |
| Ortho Development Corporation | 1 | $71 |
| Stryker | 1 | $28 |
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
$2,429 in reported general payments places this provider in the 40th percentile of 829 orthopaedic surgery providers in Michigan.
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 Hcl | 66 | $362 |
| Meloxicam | 66 | $177 |
| Acetaminophen-CodeineAcetaminophen With Codeine | 12 | $88 |
| Celecoxib | 12 | $77 |
| Cephalexin | 12 | $45 |
| Tramadol Hcl | 18 | $40 |
| Amoxicillin | 22 | $16 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery in Ann Arbor
- Asheesh BediAnn Arbor$9.4M
- John BlahaAnn Arbor$1.5M
- Bruce MillerAnn Arbor$346K
- Rakesh PatelAnn Arbor$308K
- Ira ZaltzAnn Arbor$208K
- Aaron PerdueAnn Arbor$154K
- James GouletAnn Arbor$143K
- William AibinderAnn Arbor$136K
- Paul TalusanAnn Arbor$83K
- Jerome WiaterBeverly Hills$3.9M
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.