Covered recipient · General Payments record
VICTOR CHANG
Allopathic & Osteopathic Physicians Internal Medicine Nephrology
General Payments · PY2018–2024
$4,435.60
- Reported across 174 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 | $928.89 | 32 |
| Education | $72.45 | 1 |
By paying entity
PY2024 · sorted by reported total
| Paying entity | Amount | Records |
|---|---|---|
| Mallinckrodt Hospital Products Inc. | $204.21 | 5 |
| Amgen Inc. | $144.07 | 4 |
| Abbott Laboratories | $124.84 | 1 |
| Relypsa, Inc. | $77.12 | 3 |
| Retrophin, Inc. | $69.98 | 4 |
| Acerta Pharma LLC | $61.96 | 3 |
| Alexion Pharmaceuticals, Inc. | $58.50 | 2 |
| NOVARTIS PHARMACEUTICALS CORPORATION | $48.80 | 2 |
| Otsuka America Pharmaceutical, Inc. | $29.63 | 1 |
| ANI Pharmaceuticals, Inc. | $27.38 | 1 |
| Bayer HealthCare Pharmaceuticals Inc. | $26.98 | 1 |
| Otsuka Pharmaceutical Development & Commercialization, Inc. | $24.99 | 1 |
| Ardelyx, Inc. | $23.09 | 1 |
| Novo Nordisk AS | $22.27 | 1 |
| Fresenius USA Marketing, Inc. | $19.80 | 1 |
| Lilly USA, LLC | $19.39 | 1 |
| OPKO Pharmaceuticals, LLC | $18.33 | 1 |
By program year
All program years on this page · sorted by year
Payment records · PY2024 (33)
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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