Graham Calvert, MD
Orthopaedic Surgery of the Spine · Jackson, MSNPI 1861695264
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (49.8%), food and beverage and royalties or licence payments — rather than concentrated in one kind of arrangement. Zavation Medical Products, LLC accounts for 69.1% of it on its own, with 11 other manufacturers making up the rest. Reporting peaked in 2021 at $7,679 and has fallen 57.0% since, to $3,302 in 2025.
Across 99 payments — averaging $228.39 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Zavation Medical Products, LLC$16K
- Abbott$5K
- CTL Medical Corporation$1K
- Boston Scientific$265
- Zynex Medical, Inc.$235
- Globus Medical$212
- plus $307 from 6 others
What the payments were for
- Royalty or licence$3,29615%
- Consulting fees$11,25050%
- Travel & lodging$1,2165%
- Food & beverage$5,83226%
- Education$1,0154%
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 |
|---|---|---|
| Zavation Medical Products, LLC | 23 | $15,630 |
| Abbott | 54 | $4,620 |
| CTL Medical Corporation | 3 | $1,341 |
| Boston Scientific | 6 | $265 |
| Zynex Medical, Inc. | 1 | $235 |
| Globus Medical(2 entities) | 4 | $212 |
| Spineology Inc. | 2 | $143 |
| Johnson & Johnson(2 entities) | 2 | $69 |
| Si-bone, Inc. | 1 | $27 |
| Baudax Bio Inc. | 1 | $25 |
| Pacira Pharmaceuticals Incorporated | 1 | $23 |
| Innovation Technologies Inc | 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.
- IBF System$3,500
- Proclaim Family of SCS IPGs$1,556
- Spinal$1,250
- Proclaim IPG$1,057
- CORTICAL SCREW$907
- PROCLAIM$467
- Nexwave$235
- ZAVATION$187
- TLIF$169
- OPTIMESH EXPANDABLE INTERBODY FUSION SYSTEM$126
- WAVEWRITER ALPHA$120
How this compares
Too few orthopaedic surgery of the spine providers in Mississippito place this figure against a meaningful peer group, so we don't.
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 |
|---|---|---|
| Cyclobenzaprine Hcl | 141 | $1,416 |
| Mupirocin | 132 | $878 |
| Gabapentin | 108 | $685 |
| Methylprednisolone | 109 | $597 |
| Diclofenac Sodium | 49 | $456 |
| Meloxicam | 61 | $237 |
| Celecoxib | 14 | $187 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery of the spine in Jackson
- Robert McGuireJackson$7K
- Dora PelletierJackson$3K
- James BarrettJackson$3K
- Kendall BlakeJackson$1K
- Marion WardJackson$85
- Edward SmithMeridian$259K
- Justin HallColumbus$52K
- Kenny EdwardsColumbus$41K
- David VecchioneTupelo$7K
- James AntinnesHattiesburg$2K
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.