Covered recipient · General Payments record
JONATHAN N CHANG
Allopathic & Osteopathic Physicians Obstetrics & Gynecology
General Payments · PY2021–2024
$6,261.43
- Reported across 123 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 | $526.06 | 31 |
By paying entity
PY2024 · sorted by reported total
| Paying entity | Amount | Records |
|---|---|---|
| Sumitomo Pharma America, Inc. | $88.23 | 5 |
| Astellas Pharma US Inc | $81.91 | 4 |
| SHIELD THERAPEUTICS INC | $65.05 | 4 |
| Biogen, Inc. | $64.95 | 3 |
| MAYNE PHARMA COMMERCIAL LLC | $61.76 | 5 |
| Bayer HealthCare Pharmaceuticals Inc. | $58.19 | 3 |
| Exeltis, USA Inc. | $36.86 | 2 |
| Hologic Sales and Service, LLC | $35.17 | 2 |
| Organon LLC | $33.94 | 3 |
By program year
All program years on this page · sorted by year
Payment records · PY2024 (31)
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
- 2021, 2022, 2023, 2024
- Generated from
- OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv
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