Covered recipient · General Payments record
KENNETH K CHANG
Allopathic & Osteopathic Physicians Ophthalmology
General Payments · PY2019–2025
$13,789.02
- Reported across 241 records
- CMS publication 2026-06-30
Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.
How these totals are calculated
- The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. Nothing is estimated, weighted, or combined across categories.
- General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
- Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
- Methodology & Data — sourcing, labeling, and limitations.
By nature of payment
PY2025 · sorted by reported total
| Nature of payment | Amount | Records |
|---|---|---|
| Food and Beverage | $2,202.55 | 49 |
| Long term medical supply or device loan | $838.09 | 1 |
By paying entity
PY2025 · sorted by reported total
| Paying entity | Amount | Records |
|---|---|---|
| Alcon Vision LLC | $1,440.65 | 11 |
| Bausch & Lomb Americas Inc. | $326.33 | 5 |
| RxSight Inc | $243.05 | 2 |
| ABBVIE INC. | $206.20 | 10 |
| Mallinckrodt Hospital Products Inc. | $146.01 | 2 |
| Tarsus Pharmaceuticals, Inc. | $137.95 | 9 |
| Dompe US, Inc. | $136.66 | 2 |
| Regeneron Healthcare Solutions, Inc. | $131.83 | 1 |
| Sight Sciences, Inc. | $124.24 | 2 |
| Alexion Pharmaceuticals, Inc. | $45.68 | 2 |
| Amgen Inc. | $44.72 | 2 |
| Harrow Eye, LLC | $42.16 | 1 |
| GLAUKOS CORPORATION | $15.16 | 1 |
By program year
All program years on this page · sorted by year
Payment records · PY2025 (50)
Sorted by paying entity, then date · as published by CMS
Source & provenance
- Dataset
- CMS Open Payments — General Payments
- Publisher of source data
- Centers for Medicare & Medicaid Services
- CMS publication date
- 2026-06-30
- Program years on this page
- 2019, 2020, 2021, 2022, 2023, 2024, 2025
- Source files
- Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024 , PY2025
- Generated from
- OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv
One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.
Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.