Physician profile

John R Mathias

Gastroenterology (Internal Medicine) · Houston, TX

NPI 1639239643

$570.93

in general payments reported to CMS, 2019-2025

10 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. $180.58 2019-2021
Ironwood Pharmaceuticals, INC $172.08 2019-2021
Takeda Pharmaceuticals U.S.A., INC. $76.65 2019-2021
Boehringer Ingelheim Pharmaceuticals, INC. $38.18 2019-2021
Salix Pharmaceuticals, A Division of Bausch Health US, LLC $36.60 2020-2021
Novo Nordisk INC $15.64 2020
Alfasigma USA, INC. $14.82 2020
Qol Medical, LLC $13.80 2019
Intercept Pharmaceuticals, INC. $11.69 2019
Novartis Pharmaceuticals Corporation $10.89 2019

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Payment summary

John R Mathias

$570.93

in general payments reported 2019-2025

Years
2019-2021
Top company
Abbvie INC.

https://glasscript.com/doctor/300779/john-r-mathias

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.