Physician profile

Patrick R Volak

Gastroenterology (Internal Medicine) · Tulsa, OK

NPI 1174518336

$12,765.12

in general payments reported to CMS, 2019-2025

40 companies · $2,886 in 2025

The $2,886 reported for 2025 was more than what 86% of Gastroenterology (Internal Medicine) providers received nationally (typical 2025 total: $636).

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$6,995.88
Education$82.28

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
Abbvie INC. $3,303.86 2019-2025 Skyrizi, Rinvoq, Linzess
Takeda Pharmaceuticals U.S.A., INC. $1,356.04 2019-2025 Entyvio, Eohilia, Gattex
Salix Pharmaceuticals, A Division of Bausch Health US, LLC $1,243.40 2019-2025 Xifaxan, Trulance, Relistor
Janssen Biotech, INC. $914.46 2019-2025 Tremfya, Stelara, Remicade
Pfizer INC. $754.71 2019-2025
Echosens North America, INC. $559.32 2022
Gilead Sciences, INC. $531.53 2019-2025
Celgene Corporation $448.18 2021-2024 Zeposia
Lilly USA, LLC $401.50 2024-2025 Omvoh
Regeneron Healthcare Solutions, INC. $369.26 2022-2025 Dupixent
Ferring Pharmaceuticals INC. $349.69 2019-2024 Rebyota
Olympus America INC. $269.45 2019-2021
Daiichi Sankyo INC. $243.44 2019-2025 Injectafer
Phathom Pharmaceuticals, INC. $227.15 2024-2025 Voquezna
Genzyme Corporation $225.45 2022-2025
Show all 39 companies
CompanyGeneral paymentsYearsTop products
Qol Medical, LLC $216.79 2019-2025 Sucraid, Sucraid
Merck Sharp & Dohme LLC $171.40 2021-2024 Dificid
Aimmune Therapeutics, INC. $108.75 2024-2025 Zenpep
Ardelyx, INC. $107.19 2023-2025 Ibsrela
Celltrion USA INC. $99.97 2023-2025 Yuflyma, Zymfentra, Vegzelma
Ironwood Pharmaceuticals, INC $92.15 2019-2024 Linzess
Medtronic, INC. $82.97 2022-2025 Interstim
Ipsen Biopharmaceuticals, INC $82.03 2024-2025 Iqirvo
Madrigal Pharmaceuticals $73.33 2024-2025 Resmetirom, Rezdiffra
Braintree Laboratories, INC. $71.99 2021-2023 Sutab
Intercept Pharmaceuticals, INC. $69.47 2019-2024 Ocaliva
Ucb, INC. $62.60 2019-2020
Biocon Biologics INC $62.01 2025 Yesintek
Nestle Healthcare Nutrition INC. $58.26 2021-2022
E.R. Squibb & Sons, L.L.C. $34.80 2023 Zeposia
Allergan, INC. $29.23 2019
Alnylam Pharmaceuticals INC. $28.32 2022
Alkermes, INC. $22.23 2021
Redhill Biopharma INC. $19.47 2020
Sanofi-Aventis U.S. LLC $17.13 2025
Organon LLC $16.86 2023 Hadlima
Novo Nordisk INC $14.43 2025 Wegovy
Recordati_rare_diseases_inc. $13.53 2023 Panhematin
Amgen INC. $12.77 2022

1 company reported research payments only; those appear in the research section below.

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.

Research and ownership

$11,097.44 in ownership or investment interests, as reported to CMS. These are holdings a clinician or an immediate family member has in a company, not payments received.

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Payment summary

Patrick R Volak

$12,765.12

in general payments reported 2019-2025

Years
2019-2025
Top company
Abbvie INC.
Context
The $2,886 reported for 2025 was more than what 86% of Gastroenterology (Internal Medicine) providers received nationally (typical 2025 total: $636).

https://glasscript.com/doctor/189652/patrick-r-volak

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.