Covered recipient · General Payments record
WEN YUAN M CHIANG
Allopathic & Osteopathic Physicians Internal Medicine Nephrology
General Payments · PY2018–2024
$4,426.27
- Reported across 68 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 |
|---|---|---|
| Consulting Fee | $2,000.00 | 1 |
| Food and Beverage | $617.44 | 16 |
| Education | $209.98 | 3 |
| Travel and Lodging | $15.00 | 1 |
By paying entity
PY2024 · sorted by reported total
| Paying entity | Amount | Records |
|---|---|---|
| Amgen Inc. | $2,616.93 | 12 |
| Ardelyx, Inc. | $163.55 | 6 |
| Relypsa, Inc. | $44.07 | 2 |
| OPKO Pharmaceuticals, LLC | $17.87 | 1 |
By program year
All program years on this page · sorted by year
Payment records · PY2024 (21)
Sorted by paying entity, then date · as published by CMS
Program year 2024 201820192020202120222023
Record-level detail is published for PY2024; earlier years are summarised in
“By program year”.
| Paying entity | Amount | Date | Nature of payment | Dispute status | Published | Record ID | Source |
|---|---|---|---|---|---|---|---|
| Amgen Inc. | $5.88 | 05/10/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1115500660 | CMS |
| Amgen Inc. | $144.99 | 05/15/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1115500669 | CMS |
| Amgen Inc. | $148.65 | 05/16/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1115500689 | CMS |
| Amgen Inc. | $60.00 | 05/16/2024 | Education | Undisputed | 01/23/2026 | 1115500700 | CMS |
| Amgen Inc. | $74.99 | 05/16/2024 | Education | Undisputed | 01/23/2026 | 1115500710 | CMS |
| Amgen Inc. | $74.99 | 05/16/2024 | Education | Undisputed | 01/23/2026 | 1115500720 | CMS |
| Amgen Inc. | $15.00 | 05/16/2024 | Travel and Lodging | Undisputed | 01/23/2026 | 1115500737 | CMS |
| Amgen Inc. | $2,000.00 | 05/16/2024 | Consulting Fee | Undisputed | 01/23/2026 | 1115500745 | CMS |
| Amgen Inc. | $34.18 | 05/24/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1115500680 | CMS |
| Amgen Inc. | $6.21 | 07/12/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1115500729 | CMS |
| Amgen Inc. | $23.58 | 09/13/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1115500756 | CMS |
| Amgen Inc. | $28.46 | 12/13/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1115500767 | CMS |
| Ardelyx, Inc. | $27.51 | 03/15/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1146675268 | CMS |
| Ardelyx, Inc. | $16.92 | 04/19/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1146675270 | CMS |
| Ardelyx, Inc. | $22.31 | 08/09/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1146675272 | CMS |
| Ardelyx, Inc. | $31.89 | 10/19/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1146675274 | CMS |
| Ardelyx, Inc. | $31.03 | 11/08/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1146675276 | CMS |
| Ardelyx, Inc. | $33.89 | 12/20/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1146675278 | CMS |
| OPKO Pharmaceuticals, LLC | $17.87 | 04/19/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1112843510 | CMS |
| Vifor Pharma, Inc. | $22.80 | 04/05/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1124043604 | CMS |
| Vifor Pharma, Inc. | $21.27 | 11/15/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1124063066 | 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
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.