Matthew Duffin, MD
Orthopaedic Surgery · Rock Hill, SCNPI 1528452745
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $62,333 of the $98,203 with a category attached, or 63.5%. 17 manufacturers reported payments, led by Smith+Nephew at 47.8% of the total. Among orthopaedic surgery clinicians in SC with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 189 payments — averaging $519.59 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Smith+Nephew$47K
- Stryker$30K
- Medical Device Business Services, Inc.$16K
- Zimmer Biomet$2K
- Bone Support Inc.$1K
- Johnson & Johnson$948
- plus $893 from 11 others
What the payments were for
- Consulting fees$62,33363%
- Travel & lodging$15,51816%
- Food & beverage$10,35211%
- Education$10,00010%
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 |
|---|---|---|
| Smith+Nephew | 109 | $46,988 |
| Stryker | 35 | $30,496 |
| Medical Device Business Services, Inc. | 9 | $16,197 |
| Zimmer Biomet | 13 | $1,681 |
| Bone Support Inc. | 1 | $1,000 |
| Johnson & Johnson(2 entities) | 9 | $948 |
| Omnilife Science, Inc | 1 | $264 |
| Sanara Medtech Inc. | 2 | $140 |
| Encore Medical, LP | 1 | $133 |
| Episurf Medical, Inc. | 1 | $103 |
| Avanos Medical | 2 | $67 |
| Acumed LLC | 1 | $63 |
| Boston Scientific | 1 | $50 |
| Medtronic | 1 | $31 |
| Davol Inc. | 1 | $16 |
| Heraeus Medical, LLC. | 1 | $14 |
| Medacta USA, Inc. | 1 | $13 |
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.
- Journey II$39,366
- REAL INTELLIGENCE$26,402
- K-15 PORK$17,915
- MAKO$12,793
- Legion$9,785
- Legion Revision$5,938
- JOURNEY$5,141
- SYSTEM 9 CD NXT$5,000
- REDAPT$4,566
- ATTUNE$4,272
- RI.HIP NAVIGATION$2,889
- OR3O Dual Mobility$2,598
- Tandem$1,720
- POLARSTEM$1,150
- Journey II XR$1,089
- CORI$1,056
- PICO$1,053
- CERAMENTBONE VOID FILLER$1,000
- EZOUT$954
- Oxford$871
How this compares
$98,203 in reported general payments places this provider in the 95th percentile of 325 orthopaedic surgery providers in South Carolina.
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 | 150 | $3,239 |
| Diclofenac Sodium | 132 | $1,340 |
| Gabapentin | 134 | $1,168 |
| Oxycodone Hcl | 195 | $1,032 |
| Cephalexin | 13 | $687 |
| Cyclobenzaprine Hcl | 126 | $625 |
| Methocarbamol | 79 | $589 |
| Prednisone | 69 | $483 |
| Ondansetron Hcl | 52 | $177 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 31 | $151 |
| Naproxen | 21 | $142 |
| Ibuprofen | 27 | $121 |
| Amoxicillin | 96 | $77 |
| Tizanidine Hcl | 23 | $75 |
| Tramadol Hcl | 30 | $55 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery in Rock Hill
- Justin SmithRock Hill$102K
- Kevin WeissRock Hill$65K
- Derek ParshallRock Hill$34K
- William SmithColumbia$7.7M
- Richard FrischMt Pleasant$1M
- Brent PonceCharleston$874K
- Chi LimSpartanburg$320K
- Todd LansfordNorth Charleston$286K
- Nicholas GrimaldiColumbia$203K
- Richard MarksWest Columbia$176K
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.