ALFREDO LEE CHANG
Allopathic & Osteopathic Physicians|Internal Medicine|Critical Care Medicine LOS ANGELES, CA NPI 1689944407
Browse related groups: Allopathic & Osteopathic Physicians|Internal Medicine|Critical Care Medicine CA GlaxoSmithKline, LLC. All categories
General Payments — all program years on this page
$3,898.63
- Category: General Payments
- Program years: PY2019–2024
- Record count: 137
- As of (CMS publication): 2026-01-23
Latest program year (PY2024): $1,175.42 across 42 records · disputed records: 0
Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.
How this figure is 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
Latest program year (PY2024) · sorted by reported total.
| Nature of payment | Amount | Records |
|---|---|---|
| Food and Beverage | $1,175.42 | 42 |
By paying entity
Latest program year (PY2024) · sorted by reported total.
| Paying entity | Amount | Records |
|---|---|---|
| GlaxoSmithKline, LLC. | $487.26 | 15 |
| Acerta Pharma LLC | $204.75 | 5 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $74.09 | 3 |
| Merck Sharp & Dohme Corporation | $62.20 | 3 |
| Electromed, Inc. | $62.09 | 4 |
| GENZYME CORPORATION | $60.85 | 2 |
| Actelion Pharmaceuticals US, Inc. | $40.24 | 2 |
| Mylan Specialty L.P. | $40.07 | 2 |
| Shionogi Inc | $31.98 | 1 |
| Regeneron Healthcare Solutions, Inc. | $26.69 | 1 |
| United Therapeutics Corporation | $26.45 | 1 |
| Philips Electronics North America Corporation | $24.75 | 1 |
| SANOFI PASTEUR INC. | $19.62 | 1 |
| BAXTER HEALTHCARE | $14.38 | 1 |
By program year
Records — PY2024 (42)
Provenance & corrections
- Dataset: CMS Open Payments — General Payments
- Source: CMS Open Payments dataset (bulk file)
- Publisher of source data: Centers for Medicare & Medicaid Services
- Generated from: OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv
One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.
Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.