Physician profile

Mark Nathan Belkin

Internal Medicine · Chicago, IL

NPI 1023499498

$27,919.99

in general payments reported to CMS, 2019-2025

33 companies · $9,537 in 2025

The $9,537 reported for 2025 was more than what 98% of Internal Medicine providers received nationally (typical 2025 total: $156).

See the full distribution for 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)
Consulting Fee$7,350.00
Food and Beverage$4,865.68
Travel and Lodging$450.98

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
Abbott Laboratories $14,168.17 2019-2025 Thoratec Heartmate 3 Lvas Implant Kit, Cardiomems, Amplatzer Amulet
Bayer Healthcare Pharmaceuticals INC. $7,628.69 2023-2025
Medtronic, INC. $1,418.39 2021-2025 Selectsecure
Aop Health US, LLC $1,082.02 2025 Rapiblyk
Cvrx, INC. $639.30 2021-2025 Barostim Neo System
Abiomed $472.32 2019-2025 Impella
Endotronix, INC. $294.31 2023-2025 Cordella Pulomonary Artery Pressure Sensor, Cordella Pulmonary Artery Pressure Sensor
Astrazeneca Pharmaceuticals LP $290.01 2020-2025 Farxiga, Brilinta, Wainua
Zoll Services LLC (A/K/A Zoll Lifecor Corp) $245.03 2019-2025 Lifevest
Novartis Pharmaceuticals Corporation $188.45 2021-2025
Pfizer INC. $171.32 2019-2025
Boston Scientific Corporation $144.85 2019-2020
Amgen INC. $139.57 2019-2023 Repatha
Paragonix Technologies, INC. $138.11 2024 Sherpapak, Liverguard, Pancreaspak
Medtronic Vascular, INC. $137.42 2019
Show all 32 companies
CompanyGeneral paymentsYearsTop products
Lantheus Medical Imaging, INC. $110.81 2019-2021
Janssen Pharmaceuticals, INC $105.40 2019-2021
Daiichi Sankyo INC. $79.91 2023 Injectafer
Regeneron Healthcare Solutions, INC. $69.54 2019
E.R. Squibb & Sons, L.L.C. $59.65 2022-2024 Camzyos
Bridgebio Pharma, INC. $44.82 2025 Attruby
Heartflow, INC. $42.62 2020
Boehringer Ingelheim Pharmaceuticals, INC. $35.85 2023 Jardiance
Zoll Circulation INC $35.32 2021
Daxor Corporation $33.92 2025 Bva-100
Merck Sharp & Dohme LLC $33.85 2023 Verquvo
Otsuka America Pharmaceutical, INC. $24.47 2019
Takeda Pharmaceuticals U.S.A., INC. $23.62 2022
Alnylam Pharmaceuticals INC. $21.51 2021
Medicomp INC $19.62 2023 Telepatch Cardiac Monitor
Lexicon Pharmaceuticals, INC. $17.08 2023 Inpefa
Procyrion, INC. $4.04 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.

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Payment summary

Mark Nathan Belkin

$27,919.99

in general payments reported 2019-2025

Years
2019-2025
Top company
Abbott Laboratories
Context
The $9,537 reported for 2025 was more than what 98% of Internal Medicine providers received nationally (typical 2025 total: $156).

https://glasscript.com/doctor/1318531/mark-nathan-belkin

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.