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

RANDOLPH ALAN CHEN

Allopathic & Osteopathic Physicians Internal Medicine Nephrology

NPI
1962502872
CMS profile
390460
Location
BURLINGAME, CA

General Payments · PY2018–2024

$11,184.68

  • Reported across 225 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$5,592.75

45 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

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Fresenius USA Marketing, Inc. $4,621.80 10
Acerta Pharma LLC $498.08 15
Amgen Inc. $137.54 3
Retrophin, Inc. $78.63 5
CALLIDITAS THERAPEUTICS US INC. $78.33 4
Bayer HealthCare Pharmaceuticals Inc. $71.84 3
Ardelyx, Inc. $51.29 2
Relypsa, Inc. $21.33 1
Lilly USA, LLC $17.73 1
Novo Nordisk AS $16.18 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $228.35 26
PY2019 $727.64 59
PY2020 $107.04 1
PY2021 $318.26 19
PY2022 $1,207.86 42
PY2023 $3,002.78 33
PY2024 $5,592.75 45

Payment records · PY2024 (45)

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. $34.25 02/09/2024 Food and Beverage Undisputed 01/23/2026 1115497216 CMS
Amgen Inc. $6.06 02/12/2024 Food and Beverage Undisputed 01/23/2026 1117525179 CMS
Amgen Inc. $97.23 09/20/2024 Food and Beverage Undisputed 01/23/2026 1115497229 CMS
Ardelyx, Inc. $25.34 06/14/2024 Food and Beverage Undisputed 01/23/2026 1146675044 CMS
Ardelyx, Inc. $25.95 09/17/2024 Food and Beverage Undisputed 01/23/2026 1146675046 CMS
AstraZeneca Pharmaceuticals LP $32.59 01/18/2024 Food and Beverage Undisputed 01/23/2026 1104504758 CMS
AstraZeneca Pharmaceuticals LP $27.34 02/05/2024 Food and Beverage Undisputed 01/23/2026 1104272813 CMS
AstraZeneca Pharmaceuticals LP $28.99 02/23/2024 Food and Beverage Undisputed 01/23/2026 1104778662 CMS
AstraZeneca Pharmaceuticals LP $13.88 03/29/2024 Food and Beverage Undisputed 01/23/2026 1104636687 CMS
AstraZeneca Pharmaceuticals LP $24.30 04/06/2024 Food and Beverage Undisputed 01/23/2026 1104218229 CMS
AstraZeneca Pharmaceuticals LP $23.31 04/08/2024 Food and Beverage Undisputed 01/23/2026 1105820041 CMS
AstraZeneca Pharmaceuticals LP $25.74 05/10/2024 Food and Beverage Undisputed 01/23/2026 1104585546 CMS
AstraZeneca Pharmaceuticals LP $29.58 05/25/2024 Food and Beverage Undisputed 01/23/2026 1105856696 CMS
AstraZeneca Pharmaceuticals LP $124.99 06/05/2024 Food and Beverage Undisputed 01/23/2026 1104294064 CMS
AstraZeneca Pharmaceuticals LP $24.26 06/07/2024 Food and Beverage Undisputed 01/23/2026 1104332740 CMS
AstraZeneca Pharmaceuticals LP $14.27 07/26/2024 Food and Beverage Undisputed 01/23/2026 1105707742 CMS
AstraZeneca Pharmaceuticals LP $35.74 08/23/2024 Food and Beverage Undisputed 01/23/2026 1104334862 CMS
AstraZeneca Pharmaceuticals LP $30.17 08/24/2024 Food and Beverage Undisputed 01/23/2026 1104557960 CMS
AstraZeneca Pharmaceuticals LP $32.90 09/24/2024 Food and Beverage Undisputed 01/23/2026 1105752355 CMS
AstraZeneca Pharmaceuticals LP $30.02 12/14/2024 Food and Beverage Undisputed 01/23/2026 1105455513 CMS
Bayer Healthcare Pharmaceuticals Inc. $22.24 10/18/2024 Food and Beverage Undisputed 01/23/2026 1086134266 CMS
Bayer Healthcare Pharmaceuticals Inc. $22.24 10/18/2024 Food and Beverage Undisputed 01/23/2026 1086267355 CMS
Bayer Healthcare Pharmaceuticals Inc. $27.36 11/23/2024 Food and Beverage Undisputed 01/23/2026 1086128388 CMS
CALLIDITAS THERAPEUTICS US INC. $19.87 05/03/2024 Food and Beverage Undisputed 01/23/2026 1141514423 CMS
CALLIDITAS THERAPEUTICS US INC. $13.77 07/29/2024 Food and Beverage Undisputed 01/23/2026 1141519415 CMS
CALLIDITAS THERAPEUTICS US INC. $29.13 08/30/2024 Food and Beverage Undisputed 01/23/2026 1141521445 CMS
CALLIDITAS THERAPEUTICS US INC. $15.56 11/18/2024 Food and Beverage Undisputed 01/23/2026 1141527466 CMS
Fresenius USA Marketing, Inc. $23.86 01/12/2024 Food and Beverage Undisputed 01/23/2026 1154199519 CMS
Fresenius USA Marketing, Inc. $23.66 03/15/2024 Food and Beverage Undisputed 01/23/2026 1154199517 CMS
Fresenius USA Marketing, Inc. $23.03 04/19/2024 Food and Beverage Undisputed 01/23/2026 1154199515 CMS
Fresenius USA Marketing, Inc. $20.97 07/19/2024 Food and Beverage Undisputed 01/23/2026 1154199513 CMS
Fresenius USA Marketing, Inc. $1,235.87 08/08/2024 Travel and Lodging Undisputed 01/23/2026 1154199527 CMS
Fresenius USA Marketing, Inc. $110.29 08/09/2024 Travel and Lodging Undisputed 01/23/2026 1154199521 CMS
Fresenius USA Marketing, Inc. $237.36 08/09/2024 Travel and Lodging Undisputed 01/23/2026 1154199523 CMS
Fresenius USA Marketing, Inc. $525.88 08/09/2024 Food and Beverage Undisputed 01/23/2026 1154199525 CMS
Fresenius USA Marketing, Inc. $2,400.00 08/09/2024 Compensation for serving as faculty or as a speaker for a medical education program Undisputed 01/23/2026 1154199529 CMS
Fresenius USA Marketing, Inc. $20.88 11/08/2024 Food and Beverage Undisputed 01/23/2026 1154199511 CMS
Lilly USA, LLC $17.73 12/05/2024 Food and Beverage Undisputed 01/23/2026 1135369906 CMS
Novo Nordisk Inc $16.18 05/21/2024 Food and Beverage Undisputed 01/23/2026 1097091817 CMS
Travere Therapeutics, Inc. $3.08 01/29/2024 Education Undisputed 01/23/2026 1149908483 CMS
Travere Therapeutics, Inc. $31.68 01/29/2024 Food and Beverage Undisputed 01/23/2026 1149908498 CMS
Travere Therapeutics, Inc. $3.08 03/04/2024 Education Undisputed 01/23/2026 1149908487 CMS
Travere Therapeutics, Inc. $11.85 03/04/2024 Food and Beverage Undisputed 01/23/2026 1149908490 CMS
Travere Therapeutics, Inc. $28.94 03/20/2024 Food and Beverage Undisputed 01/23/2026 1149908494 CMS
Vifor Pharma, Inc. $21.33 05/17/2024 Food and Beverage Undisputed 01/23/2026 1124049111 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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