Korboi Evans
Orthopaedic Surgery · Silver Spring, MDNPI 1063611663
Payments from drug & device makers
Across 135 payments — averaging $170.34 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Stryker$19K
- Zimmer Biomet$1K
- Abbott$547
- Amgen$412
- Ferring Pharmaceuticals Inc.$328
- Biotissue Holdings Inc.$260
- plus $2K from 18 others
What the payments were for
- Consulting fees$14,93565%
- Travel & lodging$9204%
- Food & beverage$5,92026%
- Education$1,2215%
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 |
|---|---|---|
| Stryker | 51 | $18,534 |
| Zimmer Biomet | 6 | $1,251 |
| Abbott | 4 | $547 |
| Amgen(2 entities) | 20 | $412 |
| Ferring Pharmaceuticals Inc. | 11 | $328 |
| Biotissue Holdings Inc. | 7 | $260 |
| Baxter Healthcare | 3 | $231 |
| Johnson & Johnson | 6 | $179 |
| Globus Medical | 1 | $150 |
| Si-bone, Inc. | 1 | $145 |
| Biocomposites Inc | 1 | $132 |
| Pacira Pharmaceuticals Incorporated | 5 | $111 |
| Arthrex | 1 | $111 |
| Innovation Technologies Inc | 1 | $110 |
| Acell, Inc. | 2 | $100 |
| Medtronic | 1 | $95 |
| Vericel Corporation | 3 | $70 |
| Smith+Nephew | 3 | $68 |
| Pacira Therapeutics, Inc. | 1 | $33 |
| Kowa Pharmaceuticals America, Inc. | 2 | $33 |
| Fidia Pharma USA Inc. | 2 | $33 |
| Mimedx Group, Inc. | 1 | $23 |
| Bioventus LLC | 1 | $22 |
| Vertex | 1 | $20 |
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.
- ZIPSEAL 16 SURGICAL SKIN CLOSURE KIT$14,108
- SYSTEM 9 CD NXT$1,030
- ROSA-Knee$617
- ZIPSEAL 24 SURGICAL SKIN CLOSURE KIT$615
- ORTHOMAP$467
- Comprehensive Anatomic$347
- PROCLAIM$338
- ADAPT$277
- HOFFMANN$195
- 1788$158
- GAMMA$152
- Autobahn$150
- VARIAX$148
- iFuse Implant$145
- FLOSEAL$133
- Stimulan$132
- Persona$131
- Comprehensive Reverse$126
- TRIATHLON$125
- Prokera$125
How this compares
$22,996 in reported general payments places this provider in the 80th 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Celecoxib | 67 | $2,439 |
| Oxycodone Hcl | 111 | $465 |
| Tramadol Hcl | 123 | $395 |
| Methylprednisolone | 44 | $286 |
| Ondansetron Hcl | 72 | $193 |
| Acetaminophen-CodeineAcetaminophen With Codeine | 12 | $49 |
| Meloxicam | 16 | $25 |
| Amoxicillin | 23 | $14 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery in Silver Spring
- Mark MyersonBaltimore$10.5M
- David DaluryTowson$8.1M
- Anand MurthiBaltimore$5.4M
- Timothy CoddTowson$3.7M
- Khaled KebaishBaltimore$3.5M
- Hamid HassanzadehBethesda$2M
- Michael AinLutherville$1.6M
- Paul SponsellerBaltimore$1.5M
- Shawn StandardBaltimore$1.4M
- Ronald DelanoisBaltimore$1.2M
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.