Physician profile

Leonard Giannone

Hematology & Oncology · Springfield, IL

NPI 1245297571

$346.81

in general payments reported to CMS, 2019-2025

7 companies · $117 in 2025

The $117 reported for 2025 was less than what a typical Hematology & Oncology provider received nationally (typical 2025 total: $686).

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$107.94
Education$30.65

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
Janssen Biotech, INC. $184.90 2019-2021
Daiichi Sankyo INC. $39.38 2025 Enhertu
Gilead Sciences, INC. $33.85 2021-2024 Trodelvy
Pfizer INC. $30.65 2025
Novartis Pharmaceuticals Corporation $24.31 2025
Janssen Scientific Affairs, LLC $22.32 2025 Rybrevant
Adc Therapeutics America, INC. $11.40 2021

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

Leonard Giannone

$346.81

in general payments reported 2019-2025

Years
2019-2025
Top company
Janssen Biotech, INC.
Context
The $117 reported for 2025 was less than what a typical Hematology & Oncology provider received nationally (typical 2025 total: $686).

https://glasscript.com/doctor/853889/leonard-giannone

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.