Michael Assayag, MD
Orthopaedic Surgery · Baltimore, MDNPI 1457726713
Payments from drug & device makers
What this record shows
The money is spread across several categories — speaking fees (59.7%), consulting fees and travel and lodging — rather than concentrated in one kind of arrangement. Kyowa Kirin, Inc. accounts for 61.9% of it on its own, with 22 other manufacturers making up the rest. Among orthopaedic surgery clinicians in MD with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 145 payments — averaging $504.10 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Kyowa Kirin, Inc.$45K
- Orthopediatrics Corp.$11K
- Medical Device Business Services, Inc.$9K
- Globus Medical$3K
- Orthofix Medical, Inc.$2K
- Stryker$850
- plus $3K from 17 others
What the payments were for
- Consulting fees$14,58920%
- Speaking & faculty fees$43,64560%
- Travel & lodging$10,25614%
- Food & beverage$4,2796%
- Other$3250%
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 |
|---|---|---|
| Kyowa Kirin, Inc. | 38 | $45,220 |
| Orthopediatrics Corp. | 13 | $10,683 |
| Medical Device Business Services, Inc. | 13 | $9,229 |
| Globus Medical | 14 | $2,769 |
| Orthofix Medical, Inc. | 17 | $1,628 |
| Stryker | 8 | $850 |
| Zimmer Biomet | 7 | $778 |
| Smith+Nephew | 11 | $410 |
| Nuvasive Specialized Orthopedics, Inc. | 3 | $395 |
| Integra Lifesciences Corporation | 1 | $325 |
| Johnson & Johnson | 4 | $288 |
| Wishbone Medical Inc. | 1 | $133 |
| Bioventus LLC | 4 | $90 |
| Solventum Corporation | 1 | $60 |
| Dynasplint Systems Inc. | 1 | $47 |
| Synthes USA Products LLC | 2 | $38 |
| AbbVie | 1 | $28 |
| Supreme Orthopedic Systems, LLC | 1 | $25 |
| Biomarin Pharmaceutical Inc. | 1 | $24 |
| Vertex | 1 | $20 |
| Native Surgical, LLC | 1 | $19 |
| Anika Therapeutics, Inc. | 1 | $17 |
| Paratek Pharmaceuticals, 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.
- CRYSVITA$42,421
- NA$1,883
- TrueLok$1,172
- Clavicular Fracture Fixation$1,011
- Anthem$781
- EXTERNAL FIXATION$745
- HOFFMANN$709
- PRECICE Intramedullary Limb Lengthening System$666
- Alps Prox Tib Plates$596
- INTEGRA$325
- A/R Femoral Nail$171
- COALITION AGX / AGX RP$131
- CREO S2AI$131
- CREO ONE Robotic Screw$131
- MARS 3V/3VL$131
- Excelsius - GPS$116
- PRECICE$110
- TOMOFIX$108
- Autobahn$108
- FITBONE$101
How this compares
$73,094 in reported general payments places this provider in the 90th percentile of 378 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.
Other orthopaedic surgery in Baltimore
- Mark MyersonBaltimore$10.5M
- Anand MurthiBaltimore$3.7M
- Khaled KebaishBaltimore$3M
- Shawn StandardBaltimore$1.4M
- Paul SponsellerBaltimore$958K
- John HerzenbergBaltimore$746K
- Leslie MatthewsBaltimore$710K
- Rebecca CerratoBaltimore$575K
- Henry BoucherBaltimore$315K
- James WoodBaltimore$266K
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.