STEVEN MAN CHEONG CHAN
Allopathic & Osteopathic Physicians|Internal Medicine|Hematology STANFORD, CA NPI 1669633871
Browse related groups: Allopathic & Osteopathic Physicians|Internal Medicine|Hematology CA Pharmacyclics LLC, An AbbVie Company All categories
General Payments — all program years on this page
$1,450.17
- Category: General Payments
- Program years: PY2018–2019
- Record count: 10
- As of (CMS publication): 2026-01-23
Latest program year (PY2019): $91.24 across 5 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 (PY2019) · sorted by reported total.
| Nature of payment | Amount | Records |
|---|---|---|
| Food and Beverage | $91.24 | 5 |
By paying entity
Latest program year (PY2019) · sorted by reported total.
| Paying entity | Amount | Records |
|---|---|---|
| Pharmacyclics LLC, An AbbVie Company | $91.24 | 5 |
By program year
Records — PY2019 (5)
| Record ID | Paying entity | Amount | Date | Nature of payment | Dispute status | Published | Source |
|---|---|---|---|---|---|---|---|
| 665701197 | Pharmacyclics LLC, An AbbVie Company | $12.97 | 01/22/2019 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 665702359 | Pharmacyclics LLC, An AbbVie Company | $20.12 | 04/08/2019 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 665703419 | Pharmacyclics LLC, An AbbVie Company | $13.33 | 05/01/2019 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 665703715 | Pharmacyclics LLC, An AbbVie Company | $25.93 | 06/06/2019 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 665708051 | Pharmacyclics LLC, An AbbVie Company | $18.89 | 09/05/2019 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
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_PGYR2019_P01232026_01102026.csv
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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.