Covered recipient · General Payments record
CHANG O SON
Allopathic & Osteopathic Physicians Internal Medicine
General Payments · PY2018–2024
$1,285.23
- Reported across 54 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 |
|---|---|---|
| Food and Beverage | $478.77 | 22 |
By paying entity
PY2024 · sorted by reported total
| Paying entity | Amount | Records |
|---|---|---|
| NOVARTIS PHARMACEUTICALS CORPORATION | $179.40 | 7 |
| PFIZER INC. | $62.21 | 3 |
| Acerta Pharma LLC | $53.75 | 3 |
| GlaxoSmithKline, LLC. | $43.78 | 2 |
| BeiGene USA, Inc. | $37.05 | 2 |
| E.R. Squibb & Sons, L.L.C. | $25.77 | 1 |
| Bayer HealthCare Pharmaceuticals Inc. | $21.96 | 1 |
| Janssen Biotech, Inc. | $19.85 | 1 |
| Sumitomo Pharma America, Inc. | $19.00 | 1 |
| EISAI INC. | $16.00 | 1 |
By program year
All program years on this page · sorted by year
Payment records · PY2024 (22)
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, 2020, 2022, 2023, 2024
- Generated from
- OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv
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