Marissa Bonyun, MD
Adult Reconstructive Orthopaedic Surgery · Baltimore, MDNPI 1790338341
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $5,115 of the $8,498 with a category attached, or 60.2%. Synthes USA Products LLC accounts for 60.2% of it on its own, with 7 other manufacturers making up the rest. Reporting peaked in 2024 at $5,200 and has fallen 99.3% since, to $35 in 2025. That places this record below the midpoint for adult reconstructive orthopaedic surgery clinicians in MD, where the typical reported total is $10,251.
Across 36 payments — averaging $236.07 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Synthes USA Products LLC$5K
- Synthes GmbH$1K
- Zimmer Biomet$1K
- Stryker$677
- Smith+Nephew$241
- Davol Inc.$133
- plus $87 from 2 others
What the payments were for
- Consulting fees$5,11560%
- Travel & lodging$1,56018%
- Food & beverage$1,72920%
- Education$941%
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 |
|---|---|---|
| Synthes USA Products LLC | 1 | $5,115 |
| Synthes GmbH | 2 | $1,138 |
| Zimmer Biomet | 15 | $1,107 |
| Stryker | 11 | $677 |
| Smith+Nephew | 3 | $241 |
| Davol Inc. | 1 | $133 |
| Medical Device Business Services, Inc. | 2 | $52 |
| Kerecis Limited | 1 | $35 |
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.
- Arcos$453
- Persona Revision$384
- TRIGEN InterTAN$217
- T2$162
- TRIATHLON$155
- TRIDENT$155
- X3 ADVANCED BEARING TECHNOLOGY$155
- RESTORATION$155
- GMRS$155
- ARISTA AH FLEXITIP$133
- TMARS Liners$109
How this compares
$8,498 in reported general payments places this provider in the 45th percentile of 33 adult reconstructive orthopaedic surgery providers in Maryland.
See all adult reconstructive orthopaedic surgery providers in Maryland →
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 |
|---|---|---|
| Amoxicillin | 13 | $6 |
Paid to pharmacies, not to this prescriber.
Other adult reconstructive orthopaedic surgery in Baltimore
- Michael MontBaltimore$10.9M
- Pablo WagnerBaltimore$118K
- James NaceBaltimore$102K
- Mark HasenauerBaltimore$35K
- Gregory MendezBaltimore$10K
- Grant DuvallBaltimore$3K
- Robert McKinstryBaltimore$1K
- Peter JayBaltimore$114
- Randal LewisChevy Chase$2.6M
- Sridhar DurbhakulaBethesda$766K
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.