IndustryPayments
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

JOSEPH GUAN ZHAO

Allopathic & Osteopathic Physicians Internal Medicine Nephrology

NPI
1558545087
CMS profile
1293482
Location
CHANDLER, AZ

General Payments · PY2018–2024

$5,725.49

  • Reported across 200 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$1,494.24

58 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.

Related groups: Nephrology AZ All categories

By nature of payment

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,043.09 46
Education $251.15 10
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program $200.00 2

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Acerta Pharma LLC $233.35 4
Mallinckrodt Hospital Products Inc. $214.12 7
Otsuka America Pharmaceutical, Inc. $166.08 9
Amgen Inc. $147.81 8
NOVARTIS PHARMACEUTICALS CORPORATION $142.72 2
Retrophin, Inc. $130.25 6
Bayer HealthCare Pharmaceuticals Inc. $109.40 5
OPKO Pharmaceuticals, LLC $103.70 5
Aurinia Pharma U.S., Inc. $47.42 2
Ardelyx, Inc. $46.74 3
Daiichi Sankyo Inc. $44.83 2
Relypsa, Inc. $28.08 1
Boehringer Ingelheim Pharmaceuticals, Inc. $22.28 1
Novo Nordisk AS $20.92 1
Lilly USA, LLC $18.83 1
Alexion Pharmaceuticals, Inc. $17.71 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $137.50 2
PY2019 $93.73 3
PY2020 $187.35 5
PY2021 $800.28 31
PY2022 $1,891.65 56
PY2023 $1,120.74 45
PY2024 $1,494.24 58

Payment records · PY2024 (58)

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
Alexion Pharmaceuticals, Inc. $17.71 12/11/2024 Food and Beverage Undisputed 01/23/2026 1094041387 CMS
Amgen Inc. $21.89 02/03/2024 Food and Beverage Undisputed 01/23/2026 1111746940 CMS
Amgen Inc. $15.14 03/08/2024 Food and Beverage Undisputed 01/23/2026 1111746942 CMS
Amgen Inc. $5.73 04/05/2024 Food and Beverage Undisputed 01/23/2026 1111746944 CMS
Amgen Inc. $13.13 06/06/2024 Food and Beverage Undisputed 01/23/2026 1111746946 CMS
Amgen Inc. $30.12 07/11/2024 Food and Beverage Undisputed 01/23/2026 1117422542 CMS
Amgen Inc. $21.64 07/30/2024 Food and Beverage Undisputed 01/23/2026 1111746948 CMS
Amgen Inc. $22.06 11/27/2024 Food and Beverage Undisputed 01/23/2026 1111746950 CMS
Amgen Inc. $18.10 11/27/2024 Food and Beverage Undisputed 01/23/2026 1111746952 CMS
Ardelyx, Inc. $14.14 07/25/2024 Food and Beverage Undisputed 01/23/2026 1146715719 CMS
Ardelyx, Inc. $16.12 08/29/2024 Food and Beverage Undisputed 01/23/2026 1146715721 CMS
Ardelyx, Inc. $16.48 10/30/2024 Food and Beverage Undisputed 01/23/2026 1146715723 CMS
AstraZeneca Pharmaceuticals LP $100.00 01/04/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1105771116 CMS
AstraZeneca Pharmaceuticals LP $100.00 02/12/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1104294540 CMS
AstraZeneca Pharmaceuticals LP $13.64 02/23/2024 Food and Beverage Undisputed 01/23/2026 1104704005 CMS
AstraZeneca Pharmaceuticals LP $19.71 08/22/2024 Food and Beverage Undisputed 01/23/2026 1105387801 CMS
Aurinia Pharma U.S., Inc. $18.67 01/11/2024 Food and Beverage Undisputed 01/23/2026 1150694916 CMS
Aurinia Pharma U.S., Inc. $28.75 10/09/2024 Food and Beverage Undisputed 01/23/2026 1150694918 CMS
Bayer Healthcare Pharmaceuticals Inc. $19.67 02/22/2024 Food and Beverage Undisputed 01/23/2026 1086109064 CMS
Bayer Healthcare Pharmaceuticals Inc. $20.50 06/20/2024 Food and Beverage Undisputed 01/23/2026 1086246860 CMS
Bayer Healthcare Pharmaceuticals Inc. $28.32 07/26/2024 Food and Beverage Undisputed 01/23/2026 1086267229 CMS
Bayer Healthcare Pharmaceuticals Inc. $18.19 10/03/2024 Food and Beverage Undisputed 01/23/2026 1086211471 CMS
Bayer Healthcare Pharmaceuticals Inc. $22.72 11/14/2024 Food and Beverage Undisputed 01/23/2026 1086148193 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $22.28 10/10/2024 Food and Beverage Undisputed 01/23/2026 1118057947 CMS
Daiichi Sankyo Inc. $24.79 06/19/2024 Food and Beverage Undisputed 01/23/2026 1089501760 CMS
Daiichi Sankyo Inc. $20.04 09/04/2024 Food and Beverage Undisputed 01/23/2026 1089501720 CMS
Lilly USA, LLC $18.83 12/04/2024 Food and Beverage Undisputed 01/23/2026 1135084544 CMS
Mallinckrodt Hospital Products Inc. $7.96 04/10/2024 Food and Beverage Undisputed 01/23/2026 1145156450 CMS
Mallinckrodt Hospital Products Inc. $26.58 06/17/2024 Food and Beverage Undisputed 01/23/2026 1145156455 CMS
Mallinckrodt Hospital Products Inc. $10.60 09/26/2024 Education Undisputed 01/23/2026 1145156459 CMS
Mallinckrodt Hospital Products Inc. $24.67 09/26/2024 Food and Beverage Undisputed 01/23/2026 1145156463 CMS
Mallinckrodt Hospital Products Inc. $11.72 10/04/2024 Food and Beverage Undisputed 01/23/2026 1145156467 CMS
Mallinckrodt Hospital Products Inc. $32.60 11/05/2024 Food and Beverage Undisputed 01/23/2026 1145156471 CMS
Mallinckrodt Hospital Products Inc. $99.99 12/16/2024 Education Undisputed 01/23/2026 1145156476 CMS
Novartis Pharmaceuticals Corporation $126.86 10/24/2024 Food and Beverage Undisputed 01/23/2026 1087441966 CMS
Novartis Pharmaceuticals Corporation $15.86 12/05/2024 Food and Beverage Undisputed 01/23/2026 1087441962 CMS
Novo Nordisk Inc $20.92 01/25/2024 Food and Beverage Undisputed 01/23/2026 1096605747 CMS
OPKO Pharmaceuticals, LLC $19.40 03/08/2024 Education Undisputed 01/23/2026 1112851250 CMS
OPKO Pharmaceuticals, LLC $21.82 05/22/2024 Education Undisputed 01/23/2026 1112851252 CMS
OPKO Pharmaceuticals, LLC $20.45 06/27/2024 Education Undisputed 01/23/2026 1112851254 CMS
OPKO Pharmaceuticals, LLC $21.20 10/03/2024 Education Undisputed 01/23/2026 1112851256 CMS
OPKO Pharmaceuticals, LLC $20.83 10/28/2024 Education Undisputed 01/23/2026 1112851258 CMS
Otsuka America Pharmaceutical, Inc. $27.08 01/03/2024 Food and Beverage Undisputed 01/23/2026 1119009287 CMS
Otsuka America Pharmaceutical, Inc. $2.35 01/03/2024 Food and Beverage Undisputed 01/23/2026 1119009289 CMS
Otsuka America Pharmaceutical, Inc. $22.68 01/30/2024 Food and Beverage Undisputed 01/23/2026 1119009291 CMS
Otsuka America Pharmaceutical, Inc. $20.77 02/16/2024 Food and Beverage Undisputed 01/23/2026 1119009293 CMS
Otsuka America Pharmaceutical, Inc. $18.04 03/19/2024 Food and Beverage Undisputed 01/23/2026 1119009295 CMS
Otsuka America Pharmaceutical, Inc. $26.21 04/13/2024 Food and Beverage Undisputed 01/23/2026 1119009297 CMS
Otsuka America Pharmaceutical, Inc. $1.34 08/31/2024 Food and Beverage Undisputed 01/23/2026 1119009299 CMS
Otsuka America Pharmaceutical, Inc. $27.72 08/31/2024 Food and Beverage Undisputed 01/23/2026 1119009301 CMS
Otsuka America Pharmaceutical, Inc. $19.89 10/08/2024 Food and Beverage Undisputed 01/23/2026 1119009303 CMS
Travere Therapeutics, Inc. $16.89 01/25/2024 Education Undisputed 01/23/2026 1149890541 CMS
Travere Therapeutics, Inc. $30.30 01/25/2024 Food and Beverage Undisputed 01/23/2026 1149890553 CMS
Travere Therapeutics, Inc. $3.08 05/02/2024 Education Undisputed 01/23/2026 1149890537 CMS
Travere Therapeutics, Inc. $16.89 05/02/2024 Education Undisputed 01/23/2026 1149890545 CMS
Travere Therapeutics, Inc. $29.99 09/04/2024 Food and Beverage Undisputed 01/23/2026 1149890549 CMS
Travere Therapeutics, Inc. $33.10 11/07/2024 Food and Beverage Undisputed 01/23/2026 1149890557 CMS
Vifor Pharma, Inc. $28.08 07/31/2024 Food and Beverage Undisputed 01/23/2026 1124056588 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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