Physician profile
Marvin Ryou
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).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $40K · 2020: $19K · 2021: $21K · 2022: $11K · 2023: $9,199 · 2024: $23K · 2025: $39K.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Consulting Fee: $44K · Education: $20K · Food and Beverage: $4,680 · Travel and Lodging: $2,247.
View as a table
| Payment type | Amount (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.
| Company | General payments | Years | Top 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
| Company | General payments | Years | Top 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.
If you want to bring it up
Most clinicians are glad to talk about this. A respectful way in:
- "I saw Marvin Ryou listed in the CMS Open Payments database. Can you tell me about your work with those companies?"
- "Is there a generic or alternative to this medication, and would it work as well for me?"
- "What made you choose this particular treatment for my situation?"
These are normal questions. A good clinician will welcome them.
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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.