Covered recipient · General Payments record
WON S CHANG
Allopathic & Osteopathic Physicians Radiology Radiation Oncology
General Payments · PY2018–2024
$1,743.99
- Reported across 30 records
- CMS publication 2026-01-23
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
PY2024 · sorted by reported total
| Nature of payment | Amount | Records |
|---|---|---|
| Consulting Fee | $525.00 | 1 |
| Food and Beverage | $522.80 | 14 |
By paying entity
PY2024 · sorted by reported total
| Paying entity | Amount | Records |
|---|---|---|
| Acerta Pharma LLC | $539.52 | 2 |
| E.R. Squibb & Sons, L.L.C. | $125.00 | 1 |
| ABBVIE INC. | $119.70 | 1 |
| Janssen Biotech, Inc. | $56.80 | 2 |
| PFIZER INC. | $54.64 | 2 |
| Regeneron Healthcare Solutions, Inc. | $42.53 | 2 |
| Lilly USA, LLC | $24.94 | 1 |
| Bayer HealthCare Pharmaceuticals Inc. | $24.48 | 1 |
| Merck Sharp & Dohme Corporation | $22.02 | 1 |
| GlaxoSmithKline, LLC. | $21.12 | 1 |
| Genentech USA, Inc. | $17.05 | 1 |
By program year
All program years on this page · sorted by year
Payment records · PY2024 (15)
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
- 2026-01-23
- Program years on this page
- 2018, 2019, 2021, 2022, 2023, 2024
- Generated from
- OP_DTL_GNRL_PGYR2024_P01232026_01102026.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.