Physician profile
John O Mason
NPI 1336124015
$7,144.79
in general payments reported to CMS, 2019-2025
12 companies · $223 in 2025
The $223 reported for 2025 was less than what a typical Ophthalmology provider received nationally (typical 2025 total: $384).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $574 · 2020: $361 · 2021: $1,131 · 2022: $3,853 · 2023: $311 · 2024: $692 · 2025: $223.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $1,225.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $1,225.36 |
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 |
|---|---|---|---|
| US Retina LLC | $3,383.52 | 2019-2022 | |
| Alcon Vision LLC | $1,496.01 | 2021-2025 | Constellation, Centurion, Unity |
| Intuitive Surgical, INC. | $1,148.83 | 2022 | |
| Biotissue Holdings INC. | $443.90 | 2023-2025 | |
| Inari Medical, INC. | $103.57 | 2023 | Ct Thrombectomy System Kit, Flowtriever Catheter, S |
| Iridex Corporation | $100.56 | 2022 | |
| Spark Therapeutics, INC. | $100.18 | 2019 | |
| Nova Eye, INC. | $91.51 | 2024 | |
| Dompe US, INC. | $87.23 | 2024 | Oxervate |
| Sight Sciences, INC. | $82.09 | 2025 | Sion Surgical Instrument, Omni Surgical System |
| Astellas Pharma US INC | $75.81 | 2023 | Izervay |
| Abbvie INC. | $31.58 | 2022 |
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
$124,496.58 in ownership or investment interests, as reported to CMS. These are holdings a clinician or an immediate family member has in a company, not payments received.
If you want to bring it up
Most clinicians are glad to talk about this. A respectful way in:
- "I saw John Mason 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.