Covered recipient · General Payments record
DAVID ZONGSHENG CHANG
Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology
General Payments · PY2018–2024
$76,649.30
- Reported across 86 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 |
|---|---|---|
| Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | $19,800.00 | 6 |
| Consulting Fee | $6,030.00 | 3 |
| Travel and Lodging | $839.50 | 5 |
| Food and Beverage | $762.35 | 8 |
| Education | $16.23 | 1 |
By paying entity
PY2024 · sorted by reported total
| Paying entity | Amount | Records |
|---|---|---|
| Acerta Pharma LLC | $21,116.71 | 15 |
| Takeda Pharmaceuticals U.S.A., Inc. | $2,760.00 | 1 |
| Bayer HealthCare Pharmaceuticals Inc. | $1,710.00 | 1 |
| TAIHO ONCOLOGY, INC. | $1,560.00 | 1 |
| BeiGene USA, Inc. | $133.50 | 1 |
| CHIESI USA, INC. | $83.76 | 1 |
| Ipsen Biopharmaceuticals, Inc | $66.23 | 2 |
| ABBVIE INC. | $17.88 | 1 |
By program year
All program years on this page · sorted by year
Payment records · PY2024 (23)
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, 2021, 2022, 2023, 2024
- Source files
- Dataset page · Bulk file · PY2018 , PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024
- Generated from
- OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv
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