William Messamore, MD
Sports Medicine · Wichita, KSNPI 1982018693
Payments from drug & device makers
What this record shows
The money is spread across several categories — grants (52.5%), education and travel and lodging — rather than concentrated in one kind of arrangement. Arthrex accounts for 69.6% of it on its own, with 8 other manufacturers making up the rest. Reporting peaked in 2019 at $20,519 and has fallen 98.6% since, to $283 in 2025.
Across 85 payments — averaging $448.29 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Arthrex$27K
- Titan Surgical Group, LLC$9K
- Stryker$2K
- Johnson & Johnson$249
- Linvatec Corporation$96
- Encore Medical, LP$49
- plus $102 from 3 others
What the payments were for
- Grants$20,00052%
- Travel & lodging$5,21214%
- Food & beverage$2,2706%
- Education$10,62328%
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 |
|---|---|---|
| Arthrex | 39 | $26,539 |
| Titan Surgical Group, LLC | 14 | $9,101 |
| Stryker | 20 | $1,970 |
| Johnson & Johnson | 5 | $249 |
| Linvatec Corporation | 2 | $96 |
| Encore Medical, LP | 1 | $49 |
| Vericel Corporation | 2 | $47 |
| Exactech, Inc. | 1 | $38 |
| Pacira Pharmaceuticals Incorporated | 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.
- HIP ARTHROSCOPY ACCESS & INSTRUMENTATION SET$968
- IVY AIR$171
- BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION$167
- FLEXIBLE GUIDE PIN (STRYKER ACL VERSITOMIC)$130
- CROSSFLOW$125
- ACL/PCL FLEXIBLE INSTRUMENTATION$125
How this compares
$38,105 in reported general payments places this provider in the 85th percentile of 56 sports medicine providers in Kansas.
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 | 110 | $614 |
| Diclofenac Sodium | 21 | $553 |
| Ondansetron OdtOndansetron | 59 | $424 |
| Meloxicam | 72 | $303 |
| Celecoxib | 41 | $294 |
| Tramadol Hcl | 14 | $78 |
| Naproxen | 12 | $52 |
Paid to pharmacies, not to this prescriber.
Other sports medicine in Wichita
- John BabbWichita$7K
- Phillip HaganWichita$2K
- Christopher MillerWichita$2K
- Paul ClelandWichita$1K
- Hayley JanssonWichita$1K
- Bradley BrunerWichita$875
- Andrew PorterWichita$44
- Kara CoxWichita$27
- Colin LisenbyWichita$25
- Kirk McCulloughLeawood$649K
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.