Physician profile

Mounzer Alsamman

Gastroenterology (Internal Medicine) · Fairfield, CA

NPI 1700822160

$7,289.21

in general payments reported to CMS, 2019-2025

29 companies · $1,361 in 2025

The $1,361 reported for 2025 was more than what a typical Gastroenterology (Internal Medicine) provider received nationally (typical 2025 total: $636).

See the full distribution for Gastroenterology (Internal Medicine)

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$3,986.42

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. $1,854.80 2019-2025 Linzess, Viberzi, Rinvoq
Janssen Biotech, INC. $1,005.69 2019-2025 Stelara, Tremfya, Simponi Aria
Takeda Pharmaceuticals U.S.A., INC. $842.10 2019-2025 Entyvio, Eohilia
Salix Pharmaceuticals, A Division of Bausch Health US, LLC $603.39 2019-2024 Xifaxan, Trulance, Plenvu
Gilead Sciences, INC. $515.41 2019-2025
Lilly USA, LLC $431.95 2024-2025 Omvoh
Pfizer INC. $239.95 2019-2025
Merck Sharp & Dohme LLC $191.54 2019-2023 Dificid
Redhill Biopharma INC. $191.21 2021-2023 Talicia, Movantik, Aemcolo
Celgene Corporation $173.23 2021-2023 Zeposia
Braintree Laboratories, INC. $155.37 2020-2023 Suflave
Intercept Pharmaceuticals, INC. $152.38 2020-2023 Ocaliva
Organon LLC $118.24 2024-2025 Hadlima
Qol Medical, LLC $102.01 2019-2025 Sucraid, Sucraid
Madrigal Pharmaceuticals $101.08 2024-2025 Rezdiffra, Resmetirom
Show all 29 companies
CompanyGeneral paymentsYearsTop products
Aimmune Therapeutics, INC. $96.65 2024-2025 Vowst, Zenpep
Genzyme Corporation $84.23 2022-2023
Allergan, INC. $69.48 2019-2020
Celltrion USA INC. $66.09 2024-2025 Vegzelma
Ardelyx, INC. $49.69 2024-2025 Ibsrela
Biohaven Pharmaceuticals, INC. $43.49 2021
Sandoz INC. $33.70 2024 Hyrimoz
Ferring Pharmaceuticals INC. $33.42 2023 Rebyota
Ucb, INC. $26.88 2023
Olympus America INC. $25.48 2022
Dova Pharmaceuticals $23.63 2020
Ipsen Biopharmaceuticals, INC $23.59 2025 Iqirvo
Ethicon US, LLC $23.18 2022
Ironwood Pharmaceuticals, INC $11.35 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

Mounzer Alsamman

$7,289.21

in general payments reported 2019-2025

Years
2019-2025
Top company
Abbvie INC.
Context
The $1,361 reported for 2025 was more than what a typical Gastroenterology (Internal Medicine) provider received nationally (typical 2025 total: $636).

https://glasscript.com/doctor/168311/mounzer-alsamman

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.