Physician profile

Michael B Maris

Hematology & Oncology · Denver, CO

NPI 1053395624

$2,283.98

in general payments reported to CMS, 2019-2025

34 companies · $634 in 2025

The $634 reported for 2025 was less than what a typical Hematology & Oncology provider received nationally (typical 2025 total: $686).

Payments by year

General and research 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$1,307.50

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. Research payments are listed separately below. Product names cover 2023-2025.

CompanyGeneral paymentsYearsTop products
Celgene Corporation $631.84 2019-2025 Reblozyl, Pomalyst, Opdualag
Abbvie INC. $408.88 2020-2025
Mesoblast, INC. $203.88 2025 Ryoncil
Pharmacyclics LLC, An Abbvie Company $156.34 2019-2023 Imbruvica
Incyte Corporation $103.65 2020-2021
Astellas Pharma US INC $68.73 2024-2025 Xospata
Rigel Pharmaceuticals, INC. $62.63 2019
Takeda Pharmaceuticals U.S.A., INC. $59.88 2019-2021
Janssen Biotech, INC. $55.49 2019-2024 Talvey, Tecvayli, Darzalex
Genentech USA, INC. $49.89 2019-2023 Venclexta
Novartis Pharmaceuticals Corporation $46.26 2019
Legend Biotech USA INC. $45.98 2023 Carvykti
Amgen INC. $43.32 2020-2023 Blincyto
Jazz Pharmaceuticals INC. $42.00 2019-2023
Kite Pharma, INC. $36.82 2022-2025 Yescarta
Show all 27 companies
CompanyGeneral paymentsYearsTop products
Daiichi Sankyo INC. $35.90 2022-2025 Vanflyta
Agios Pharmaceuticals, INC. $33.06 2019
Autolus INC $29.42 2025
Verastem, INC. $26.43 2019
E.R. Squibb & Sons, L.L.C. $24.50 2019
Genzyme Corporation $21.92 2024
Pfizer INC. $18.26 2022-2023
Akcea Therapeutics, INC. $18.26 2019
Adc Therapeutics America, INC. $18.00 2022
Pharmaessentia USA Corporation $15.00 2022
Janssen Scientific Affairs, LLC $13.84 2019
Merck Sharp & Dohme LLC $13.80 2019

7 companies 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

$46,876.95 in research payments reported 2019-2025. Research payments are often institution-directed and tied to clinical trials: they are reported under a clinician's name but frequently go to a hospital or research organization, and usually reflect participation in medical research.

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Payment summary

Michael B Maris

$2,283.98

in general payments reported 2019-2025

Years
2019-2025
Top company
Takeda Pharmaceuticals U.S.A., INC.
Context
The $634 reported for 2025 was less than what a typical Hematology & Oncology provider received nationally (typical 2025 total: $686).

https://glasscript.com/doctor/962746/michael-b-maris

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.