Physician profile

William A Walker

Thoracic Surgery (Cardiothoracic Vascular Surgery) · Knoxville, TN

NPI 1770551368

$4,219.31

in general payments reported to CMS, 2019-2025

17 companies · $666 in 2025

The $666 reported for 2025 was less than what a typical Thoracic Surgery (Cardiothoracic Vascular Surgery) provider 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)
Food and Beverage$2,891.72

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
Zimmer Biomet Holdings, INC. $927.01 2019-2024 Sternalock, Sternalock 360 System
Getinge USA Sales, LLC $728.60 2020-2025 Vasoview Hemopro 2, Heartstring III Proximal Seal, Heartstring III Proximal Seal
Edwards Lifesciences Corporation $638.18 2019-2025 Mitris Resilia Mitral Valve, Sapien 3 Ultra Resilia
Atricure, INC. $586.01 2024-2025 Atriclip Laa Exclusion System, Synergy Ablation System, Atricure Cryoice Cryosphere Cryoablation System
Merz North America, INC. $287.55 2023 Xeomin
Medtronic, INC. $236.05 2021-2025 Mosaic
Zoll Services LLC (A/K/A Zoll Lifecor Corp) $182.32 2019-2025 Lifevest
Artivion, INC. $138.47 2024-2025 On-X Aortic Heart Valve With Conform-X Sewing Ring and Extended Holder, Bioglue Surgical Adhesive, Cardiac Non-Synergraft
Dilon Technologies, INC. $112.89 2025 Hemoblast Bellows
Sanara Medtech INC. $102.33 2024 Celleraterx
Ethicon US, LLC $72.49 2025 Surgiflo Hemostatic Matrix, Vistaseal, Ethicon
Abiomed $69.81 2024-2025 Impella
Intuitive Surgical, INC. $54.05 2025
Convatec INC. $30.03 2024
Medtronic Vascular, INC. $26.20 2019
Show all 17 companies
CompanyGeneral paymentsYearsTop products
Janssen Pharmaceuticals, INC $14.13 2021
Lsi Solutions INC $13.19 2019

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

William A Walker

$4,219.31

in general payments reported 2019-2025

Years
2019-2025
Top company
Zimmer Biomet Holdings, INC.
Context
The $666 reported for 2025 was less than what a typical Thoracic Surgery (Cardiothoracic Vascular Surgery) provider received nationally (typical 2025 total: $796).

https://glasscript.com/doctor/34654/william-a-walker

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.