John Calhoun, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) · Jackson, MSNPI 1275943037
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $10,743 of the $12,472 with a category attached, or 86.1%. 26 manufacturers reported payments, led by Abiomed at 47.6% of the total.
Across 258 payments — averaging $48.34 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Abiomed$6K
- Atricure, Inc.$2K
- Medtronic$2K
- Boehringer Ingelheim$414
- Edwards Lifesciences$317
- Zimmer Biomet$241
- plus $1K from 20 others
What the payments were for
- Travel & lodging$1,72914%
- Food & beverage$10,74386%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| Abiomed | 95 | $5,933 |
| Atricure, Inc. | 66 | $2,483 |
| Medtronic | 47 | $1,657 |
| Boehringer Ingelheim | 4 | $414 |
| Edwards Lifesciences | 8 | $317 |
| Zimmer Biomet | 5 | $241 |
| Davol Inc. | 7 | $199 |
| Stryker | 1 | $174 |
| Baxter Healthcare | 2 | $151 |
| Inari Medical, Inc. | 1 | $121 |
| Boston Scientific | 1 | $112 |
| Idorsia Pharmaceuticals US Inc | 1 | $108 |
| AstraZeneca | 1 | $99 |
| Amgen | 1 | $91 |
| Johnson & Johnson | 2 | $77 |
| Innovation Technologies Inc | 3 | $45 |
| Chiesi USA, Inc. | 2 | $40 |
| Cook Medical LLC | 2 | $36 |
| Corcym Inc | 1 | $31 |
| Kerecis Limited | 2 | $30 |
| Shockwave Medical, Inc | 1 | $23 |
| KCI USA, Inc. | 1 | $20 |
| ALON Medical Technology | 1 | $20 |
| Kls-martin L.p. | 1 | $19 |
| Philips North America LLC | 1 | $18 |
| Smith+Nephew | 1 | $14 |
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.
- Impella$3,244
- SYNERGY ABLATION SYSTEM$966
- ATRICURE CRYOICE CRYOSPHERE CRYOABLATION SYSTEM$891
- CoreValve Evolut$336
- JARDIANCE$324
- ATRICLIP LAA EXCLUSION SYSTEM$218
- ATRICURE CRYOICE CRYOABLATION SYSTEM (CRYO2)$218
- NA$174
- COREVALVE EVOLUT R$164
- Edwards SAPIEN 3 Ultra Transcatheter Heart Valve$134
- FLOWTRIEVER CATHETER, S$121
- CT THROMBECTOMY SYSTEM KIT$121
- WATCHMAN Access System$112
- Tryvio$108
- Avalus$103
How this compares
$12,472 in reported general payments places this provider in the 80th percentile of 42 thoracic surgery (cardiothoracic vascular surgery) providers in Mississippi.
See all thoracic surgery (cardiothoracic vascular surgery) providers in Mississippi →
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 |
|---|---|---|
| Mupirocin | 20 | $150 |
Paid to pharmacies, not to this prescriber.
Other thoracic surgery (cardiothoracic vascular surgery) in Jackson
- Galen OhnmachtJackson$83K
- Pierre de DelvaJackson$71K
- Craig AdamsJackson$9K
- Jacob MoremenJackson$7K
- William HarrisJackson$6K
- Ronald KennedyJackson$6K
- Jonathan ReimerJackson$4K
- Kelsey KochJackson$3K
- Christopher GreenleafJackson$2K
- Komal ParikhJackson$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.