Physician profile

John Gregory Markley

Thoracic Surgery (Cardiothoracic Vascular Surgery) · Columbia, MO

NPI 1932190980

$20,616.29

in general payments reported to CMS, 2019-2025

20 companies · $3,602 in 2025

The $3,602 reported for 2025 was more than what 77% of Thoracic Surgery (Cardiothoracic Vascular Surgery) providers received nationally (typical 2025 total: $796).

Payments by year

General payments by program year, as reported to CMS.

What the payments were for

Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.

View as a table
Payment typeAmount (2023-2025)
Travel and Lodging$9,232.92
Food and Beverage$4,186.96

Payment-type detail covers 2023-2025; earlier years are included in totals but not broken out here.

Who reported paying

General payments only, as reported to CMS. Product names cover 2023-2025.

CompanyGeneral paymentsYearsTop products
Edwards Lifesciences Corporation $11,384.06 2019-2025 Pascal, Mitris Resilia Mitral Valve, Edwards Mc3 Tricuspid Annuloplasty Ring
Artivion, INC. $2,310.08 2020-2025 Amds-Ascyrus Medical, Bioglue Surgical Adhesive, On-X Aortic Heart Valve With Conform-X Sewing Ring and Extended Holder
Abbott Laboratories $1,780.37 2019-2025 Navitor
Medtronic, INC. $1,691.51 2022-2025 Octopus, Endurant Iis, Na
Abiomed $1,690.20 2019-2025 Impella
Medtronic Vascular, INC. $569.73 2019
Kci USA, INC. $185.38 2019-2022
Terumo Cardiovascular Systems Corporation $150.00 2023 Cdi Blood Parameter Monitoring System 550, Terumo Advanced Perfusion System 1
Baxter Healthcare $140.60 2019-2025 Perclot, Preveleak, Floseal
Atricure, INC. $136.92 2025 Epi-Sense Guided Coagulation System With Visitrax
Janssen Pharmaceuticals, INC $129.56 2024 Xarelto
Medical Device Business Services, INC. $104.12 2023-2025 Surgicel Nu-Knit
Lsi Solutions INC $93.41 2019-2024 Cor-Knot
Amgen INC. $78.41 2023-2024 Repatha
Octapharma USA, INC. $52.86 2025 Fibryga
Show all 20 companies
CompanyGeneral paymentsYearsTop products
Getinge USA Sales, LLC $29.25 2024 Intergard, Vasoview Hemopro 2
La Jolla Pharmaceutical Company $24.21 2025 Giapreza
Merck Sharp & Dohme LLC $23.18 2024 Verquvo
Intuitive Surgical, INC. $22.50 2021
Haemonetics Corporation $19.94 2024 Teg6s Hemostasis System

Drugs and devices associated with these payments

CMS records which products a payment was associated with, not how the money was allocated. Association is not allocation: one payment can be associated with several products, and a product listing does not mean the payment was made because of that product. Product detail covers 2023-2025.

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Payment summary

John Gregory Markley

$20,616.29

in general payments reported 2019-2025

Years
2019-2025
Top company
Edwards Lifesciences Corporation
Context
The $3,602 reported for 2025 was more than what 77% of Thoracic Surgery (Cardiothoracic Vascular Surgery) providers received nationally (typical 2025 total: $796).

https://glasscript.com/doctor/532362/john-gregory-markley

Source: CMS Open Payments, program years 2019-2025. Payments are legal and often routine.

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Source: CMS Open Payments, program years 2019-2025, as reported to CMS by drug and device makers (published June 30, 2026). Drug and device detail covers 2023-2025.