Physician profile

David A Knuff

Gastroenterology (Internal Medicine) · Green Bay, WI

NPI 1386723773

$632.27

in general payments reported to CMS, 2019-2025

6 companies · none reported in 2025

Payments by year

General payments by program year, as reported to CMS.

Who reported paying

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

CompanyGeneral paymentsYearsTop products
Abbvie INC. $291.72 2019-2021
E.R. Squibb & Sons, L.L.C. $125.00 2021
Pfizer INC. $89.90 2019
Janssen Biotech, INC. $77.57 2019-2022
Covidien Lp $33.28 2019
Olympus America INC. $14.80 2019

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Payment summary

David A Knuff

$632.27

in general payments reported 2019-2025

Years
2019-2022
Top company
Abbvie INC.

https://glasscript.com/doctor/62413/david-a-knuff

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.