Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-01-23 View official record Methodology

Covered recipient · General Payments record

MAGGIE W CHEN

Allopathic & Osteopathic Physicians Internal Medicine Nephrology

NPI
1649470683
CMS profile
1064973
Location
SAN JOSE, CA

General Payments · PY2018–2024

$6,985.09

  • Reported across 343 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$1,060.58

46 records · 0 disputed

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 paymentAmountRecords
Food and Beverage $1,030.51 45
Education $30.07 1

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $1,377.34 60
PY2019 $1,550.84 76
PY2020 $760.77 39
PY2021 $709.21 45
PY2022 $766.78 39
PY2023 $759.57 38
PY2024 $1,060.58 46

Payment records · PY2024 (46)

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. $19.14 01/08/2024 Food and Beverage Undisputed 01/23/2026 1111547968 CMS
Amgen Inc. $13.46 05/06/2024 Food and Beverage Undisputed 01/23/2026 1111547970 CMS
Amgen Inc. $23.87 10/25/2024 Food and Beverage Undisputed 01/23/2026 1117222693 CMS
Amgen Inc. $33.57 10/30/2024 Food and Beverage Undisputed 01/23/2026 1117222695 CMS
Amgen Inc. $19.37 12/19/2024 Food and Beverage Undisputed 01/23/2026 1111547972 CMS
Ardelyx, Inc. $20.07 01/23/2024 Food and Beverage Undisputed 01/23/2026 1146675010 CMS
Ardelyx, Inc. $23.62 02/22/2024 Food and Beverage Undisputed 01/23/2026 1146675012 CMS
Ardelyx, Inc. $24.80 03/22/2024 Food and Beverage Undisputed 01/23/2026 1146675014 CMS
Ardelyx, Inc. $29.17 04/20/2024 Food and Beverage Undisputed 01/23/2026 1146675016 CMS
Ardelyx, Inc. $26.82 05/25/2024 Food and Beverage Undisputed 01/23/2026 1146675018 CMS
Ardelyx, Inc. $31.21 07/13/2024 Food and Beverage Undisputed 01/23/2026 1146675020 CMS
Ardelyx, Inc. $28.94 08/17/2024 Food and Beverage Undisputed 01/23/2026 1146675022 CMS
Ardelyx, Inc. $32.20 10/04/2024 Food and Beverage Undisputed 01/23/2026 1146675024 CMS
Ardelyx, Inc. $31.42 11/07/2024 Food and Beverage Undisputed 01/23/2026 1146675026 CMS
Ardelyx, Inc. $32.72 12/06/2024 Food and Beverage Undisputed 01/23/2026 1146675028 CMS
AstraZeneca Pharmaceuticals LP $17.27 08/10/2024 Food and Beverage Undisputed 01/23/2026 1104615468 CMS
AstraZeneca Pharmaceuticals LP $23.57 09/05/2024 Food and Beverage Undisputed 01/23/2026 1105609631 CMS
Bayer Healthcare Pharmaceuticals Inc. $14.82 06/21/2024 Food and Beverage Undisputed 01/23/2026 1086250730 CMS
Bayer Healthcare Pharmaceuticals Inc. $15.77 07/18/2024 Food and Beverage Undisputed 01/23/2026 1086159160 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $27.57 02/28/2024 Food and Beverage Undisputed 01/23/2026 1118094890 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $27.18 11/22/2024 Food and Beverage Undisputed 01/23/2026 1118094888 CMS
CALLIDITAS THERAPEUTICS US INC. $24.48 01/11/2024 Food and Beverage Undisputed 01/23/2026 1141507914 CMS
CALLIDITAS THERAPEUTICS US INC. $24.38 03/27/2024 Food and Beverage Undisputed 01/23/2026 1141512381 CMS
CALLIDITAS THERAPEUTICS US INC. $25.44 10/08/2024 Food and Beverage Undisputed 01/23/2026 1141524228 CMS
CALLIDITAS THERAPEUTICS US INC. $25.61 11/15/2024 Food and Beverage Undisputed 01/23/2026 1141527386 CMS
Fresenius USA Marketing, Inc. $24.13 01/05/2024 Food and Beverage Undisputed 01/23/2026 1154193348 CMS
Fresenius USA Marketing, Inc. $24.21 03/06/2024 Food and Beverage Undisputed 01/23/2026 1154193350 CMS
Fresenius USA Marketing, Inc. $21.02 04/11/2024 Food and Beverage Undisputed 01/23/2026 1154193344 CMS
Fresenius USA Marketing, Inc. $24.69 08/15/2024 Food and Beverage Undisputed 01/23/2026 1154193352 CMS
Fresenius USA Marketing, Inc. $23.04 10/22/2024 Food and Beverage Undisputed 01/23/2026 1154193346 CMS
GlaxoSmithKline, LLC. $13.70 02/01/2024 Food and Beverage Undisputed 01/23/2026 1116253461 CMS
Kiniksa Pharmaceuticals International, plc $27.24 07/02/2024 Food and Beverage Undisputed 01/23/2026 1154871146 CMS
Lilly USA, LLC $29.65 06/27/2024 Food and Beverage Undisputed 01/23/2026 1135161321 CMS
Mallinckrodt Hospital Products Inc. $2.73 01/19/2024 Food and Beverage Undisputed 01/23/2026 1145056679 CMS
Mallinckrodt Hospital Products Inc. $27.20 01/20/2024 Food and Beverage Undisputed 01/23/2026 1145056683 CMS
Mallinckrodt Hospital Products Inc. $31.95 05/15/2024 Food and Beverage Undisputed 01/23/2026 1145056687 CMS
Mallinckrodt Hospital Products Inc. $35.33 06/13/2024 Food and Beverage Undisputed 01/23/2026 1145056691 CMS
Mallinckrodt Hospital Products Inc. $29.58 08/22/2024 Food and Beverage Undisputed 01/23/2026 1145056696 CMS
Mallinckrodt Hospital Products Inc. $3.58 10/24/2024 Food and Beverage Undisputed 01/23/2026 1145056700 CMS
Mallinckrodt Hospital Products Inc. $22.16 10/24/2024 Food and Beverage Undisputed 01/23/2026 1145056704 CMS
Mallinckrodt Hospital Products Inc. $1.44 10/24/2024 Food and Beverage Undisputed 01/23/2026 1145056708 CMS
Mallinckrodt Hospital Products Inc. $8.25 11/19/2024 Food and Beverage Undisputed 01/23/2026 1145056712 CMS
Novartis Pharmaceuticals Corporation $29.75 10/01/2024 Food and Beverage Undisputed 01/23/2026 1086781869 CMS
OPKO Pharmaceuticals, LLC $30.07 08/15/2024 Education Undisputed 01/23/2026 1112843486 CMS
STRATA Skin Sciences, Inc. $25.42 10/11/2024 Food and Beverage Undisputed 01/23/2026 1146579848 CMS
Travere Therapeutics, Inc. $8.97 01/25/2024 Food and Beverage Undisputed 01/23/2026 1149948514 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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