John Mason, MD
Orthopaedic Surgery · Charlotte, NCNPI 1356323257
Payments from drug & device makers
What this record shows
This record is dominated by royalties or licence payments: $5,005,019 of the $5,681,842 with a category attached, or 88.1%. Depuy Synthes Products, Inc. accounts for 92.8% of it on its own, with 17 other manufacturers making up the rest. Among orthopaedic surgery clinicians in NC 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 441 payments — averaging $12,884 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Depuy Synthes Products, Inc.$5.3M
- Medical Device Business Services, Inc.$405K
- Onkos Surgical, Inc.$3K
- Johnson & Johnson$665
- Smith+Nephew$493
- Zimmer Biomet$252
- plus $1K from 12 others
Across 48 payments — averaging $10,449 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Medical Device Business Services, Inc.$502K
What the payments were for
- Royalty or licence$5,005,01988%
- Consulting fees$598,96811%
- Travel & lodging$71,7121%
- Food & beverage$6,1430%
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 |
|---|---|---|
| Depuy Synthes Products, Inc. | 211 | $5,270,541 |
| Medical Device Business Services, Inc. | 198 | $405,426 |
| Onkos Surgical, Inc. | 3 | $3,111 |
| Johnson & Johnson | 6 | $665 |
| Smith+Nephew | 6 | $493 |
| Zimmer Biomet | 4 | $252 |
| Heraeus Medical, LLC. | 2 | $207 |
| Intellijoint Surgical Inc. | 1 | $168 |
| Davol Inc. | 1 | $160 |
| Stryker | 1 | $143 |
| Next Science LLC | 1 | $132 |
| Peerless Surgical Inc. | 1 | $125 |
| Heron Therapeutics, Inc. | 1 | $124 |
| Medtronic | 1 | $109 |
| Osteoremedies, LLC | 1 | $101 |
| Arthrex | 1 | $40 |
| Vertex | 1 | $22 |
| AbbVie | 1 | $22 |
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.
- ATTUNE$5,409,527
- SUMMIT$242,059
- Kincise$160,550
- SIGMA$42,293
- RECLAIM$40,695
- GRIPTION$26,237
- GRIPTION TF$26,237
- HIP ENDURANCE$19,795
- PINNACLE$18,637
- Kincise Surgical Automated System$16,849
- S-ROM$15,707
- ACTIS$9,273
- Pinnacle Gription TF$3,022
- ELEOS LIMB SALVAGE SYSTEM$3,019
- EMPHASYS$1,146
- Velys$593
- Anspach Helix$423
- Intellijoint$168
- ARISTA AH FLEXITIP$160
- MAKO$143
How this compares
$5,681,842 in reported general payments places this provider in the 95th percentile of 845 orthopaedic surgery providers in North 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 |
|---|---|---|
| Amoxicillin | 27 | $26 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery in Charlotte
- Thomas FehringCharlotte$18.3M
- Walter BeaverCharlotte$7.4M
- Robert AndersonCharlotte$6.6M
- William DavisCharlotte$5.2M
- John EllingtonCharlotte$4.9M
- Carroll JonesCharlotte$3.6M
- John MasonisCharlotte$3.4M
- Bruce CohenCharlotte$2.4M
- Anthony KwonCharlotte$1.9M
- William GriffinCharlotte$1.8M
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.