Physician profile

John A Spera

Radiation Oncology · Danbury, CT

NPI 1306831813

$934.46

in general payments reported to CMS, 2019-2025

21 companies · none reported in 2025

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$43.72

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
E.R. Squibb & Sons, L.L.C. $111.98 2019-2020
Janssen Biotech, INC. $77.22 2019-2020
Amag Pharmaceuticals, INC. $71.67 2019
Ipsen Biopharmaceuticals, INC $71.53 2019-2020
Bayer Healthcare Pharmaceuticals INC. $67.84 2019-2020
Sanofi-Aventis U.S. LLC $67.16 2019-2020
Array Biopharma INC $49.60 2019
Ge Healthcare $44.36 2019
Amgen INC. $43.95 2019
Progenics Pharmaceuticals, INC. $43.72 2024
Astrazeneca Pharmaceuticals LP $41.43 2019-2020
Exelixis INC. $38.48 2019
Seagen INC. $38.46 2019
Incyte Corporation $29.97 2019
Takeda Pharmaceuticals U.S.A., INC. $24.75 2019
Show all 21 companies
CompanyGeneral paymentsYearsTop products
Alexion Pharmaceuticals, INC. $24.31 2019
Puma Biotechnology, INC. $23.04 2019
Eisai INC. $22.73 2019
Rigel Pharmaceuticals, INC. $15.60 2019
Clovis Oncology, INC. $14.35 2019
Jazz Pharmaceuticals INC. $12.31 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

John A Spera

$934.46

in general payments reported 2019-2025

Years
2019-2024
Top company
E.R. Squibb & Sons, L.L.C.

https://glasscript.com/doctor/331110/john-a-spera

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.