Physician profile

Marvin Ryou

Gastroenterology (Internal Medicine) · Boston, MA

NPI 1821104787

$162,084.30

in general payments reported to CMS, 2019-2025

19 companies · $39K in 2025

The $39K reported for 2025 was more than what 97% of Gastroenterology (Internal Medicine) providers 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)
Consulting Fee$44,180.00
Education$19,670.00
Food and Beverage$4,680.45
Travel and Lodging$2,246.76

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
Boston Scientific Corporation $47,935.53 2019-2025 Axios, Apollo Esg System, Overstitch Endoscopic Suturing System
Olympus America INC. $46,931.63 2020-2025 Evis Eus Endoscopic Ultrasound Center, Evis Exera II Ultrasound Gastrovideoscope, Single Use Aspiration Needle Na-U200h
Fujifilm Healthcare Americas Corporation $27,055.57 2019-2025 Fujifilm, Arietta Precision
Olympus Corporation of The Americas $22,016.98 2024-2025 Single Use Aspiration Needle Na-U200h
Pentax of America, INC. $6,106.70 2019-2025 Pentax Medical, C2 Cryoballoon, C2 Cryoballoon Focal Controller
Medtronic, INC. $2,379.21 2021-2024 Endoflip, Prodigi, Nexpowder
Wilson Cook Medical Incorporated $2,314.88 2020-2022
Fujifilm New Development USA, INC. $2,250.00 2020
Olympus Medical Systems Corporation $1,891.28 2025
Covidien LP $1,083.48 2019
Olympus Corporation $1,005.00 2025
Cook Medical LLC $772.35 2020-2025 Echotip, Echotip Insight
Celltrion, INC. $150.00 2025
Laborie Medical Technologies Corp. $101.92 2022
Apollo Endosurgery US INC $47.43 2022
Show all 17 companies
CompanyGeneral paymentsYearsTop products
Fujifilm Corporation $22.34 2019
Creo Medical INC. $20.00 2021

2 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.

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Payment summary

Marvin Ryou

$162,084.30

in general payments reported 2019-2025

Years
2019-2025
Top company
Boston Scientific Corporation
Context
The $39K reported for 2025 was more than what 97% of Gastroenterology (Internal Medicine) providers received nationally (typical 2025 total: $636).

https://glasscript.com/doctor/218244/marvin-ryou

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.