Covered recipient · General Payments record
BRIAN K CHANG
Allopathic & Osteopathic Physicians Radiology Radiation Oncology
General Payments · PY2019–2025
$12,978.48
- Reported across 47 records
- CMS publication 2026-06-30
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
PY2025 · sorted by reported total
| Nature of payment | Amount | Records |
|---|---|---|
| Food and Beverage | $142.81 | 7 |
By paying entity
PY2025 · sorted by reported total
| Paying entity | Amount | Records |
|---|---|---|
| Sumitomo Pharma America, Inc. | $49.76 | 2 |
| NOVARTIS PHARMACEUTICALS CORPORATION | $38.50 | 2 |
| RefleXion Medical, Inc. | $25.00 | 1 |
| Merck Sharp & Dohme Corporation | $15.27 | 1 |
| BOSTON SCIENTIFIC CORPORATION | $14.28 | 1 |
By program year
All program years on this page · sorted by year
Payment records · PY2025 (7)
Sorted by paying entity, then date · as published by CMS
| Paying entity | Amount | Date | Nature of payment | Dispute status | Published | Record ID | Source |
|---|---|---|---|---|---|---|---|
| Boston Scientific Corporation | $14.28 | 06/13/2025 | Food and Beverage | Undisputed | 06/30/2026 | 1181191090 | CMS |
| Merck Sharp & Dohme LLC | $15.27 | 05/05/2025 | Food and Beverage | Undisputed | 06/30/2026 | 1238361971 | CMS |
| Novartis Pharmaceuticals Corporation | $20.00 | 02/21/2025 | Food and Beverage | Undisputed | 06/30/2026 | 1200006977 | CMS |
| Novartis Pharmaceuticals Corporation | $18.50 | 05/16/2025 | Food and Beverage | Undisputed | 06/30/2026 | 1200006979 | CMS |
| RefleXion Medical, Inc. | $25.00 | 02/11/2025 | Food and Beverage | Undisputed | 06/30/2026 | 1228838734 | CMS |
| Sumitomo Pharma America, Inc. | $22.39 | 08/28/2025 | Food and Beverage | Undisputed | 06/30/2026 | 1176620929 | CMS |
| Sumitomo Pharma America, Inc. | $27.37 | 10/20/2025 | Food and Beverage | Undisputed | 06/30/2026 | 1176620933 | CMS |
Source & provenance
- Dataset
- CMS Open Payments — General Payments
- Publisher of source data
- Centers for Medicare & Medicaid Services
- CMS publication date
- 2026-06-30
- Program years on this page
- 2019, 2021, 2022, 2023, 2024, 2025
- Generated from
- OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv
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