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

KAI ZU

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1164583639
CMS profile
143308
Location
LA MESA, CA

General Payments · PY2018–2024

$42,732.47

  • Reported across 228 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$3,291.28

49 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
Consulting Fee $2,200.00 2
Food and Beverage $1,091.28 47

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $1,225.05 5
PY2019 $5,577.46 17
PY2020 $13,559.45 16
PY2021 $5,596.86 21
PY2022 $12,038.30 54
PY2023 $1,444.07 66
PY2024 $3,291.28 49

Payment records · PY2024 (49)

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
ABBVIE INC. $24.06 01/03/2024 Food and Beverage Undisputed 01/23/2026 1106401105 CMS
ABBVIE INC. $15.46 06/17/2024 Food and Beverage Undisputed 01/23/2026 1106401107 CMS
ABBVIE INC. $25.79 12/12/2024 Food and Beverage Undisputed 01/23/2026 1106401109 CMS
Adaptive Biotechnologies Corporation $19.52 09/10/2024 Food and Beverage Undisputed 01/23/2026 1150260350 CMS
Alexion Pharmaceuticals, Inc. $34.48 05/02/2024 Food and Beverage Undisputed 01/23/2026 1093978328 CMS
Alexion Pharmaceuticals, Inc. $26.34 09/24/2024 Food and Beverage Undisputed 01/23/2026 1093990921 CMS
ARRAY BIOPHARMA INC $23.44 10/09/2024 Food and Beverage Undisputed 01/23/2026 1131379009 CMS
Astellas Pharma US Inc $26.32 09/17/2024 Food and Beverage Undisputed 01/23/2026 1139401035 CMS
Astellas Pharma US Inc $27.30 11/21/2024 Food and Beverage Undisputed 01/23/2026 1139436336 CMS
AstraZeneca Pharmaceuticals LP $25.31 09/24/2024 Food and Beverage Undisputed 01/23/2026 1105721840 CMS
AstraZeneca Pharmaceuticals LP $825.00 11/25/2024 Consulting Fee Undisputed 01/23/2026 1105515093 CMS
AstraZeneca Pharmaceuticals LP $1,375.00 12/17/2024 Consulting Fee Undisputed 01/23/2026 1105328460 CMS
BeiGene USA, Inc. $28.89 07/31/2024 Food and Beverage Undisputed 01/23/2026 1120849390 CMS
Celgene Corporation $27.84 04/16/2024 Food and Beverage Undisputed 01/23/2026 1101122306 CMS
Celgene Corporation $17.86 04/26/2024 Food and Beverage Undisputed 01/23/2026 1101122304 CMS
Celgene Corporation $27.07 05/06/2024 Food and Beverage Undisputed 01/23/2026 1101122312 CMS
Deciphera Pharmaceuticals Inc. $24.35 06/06/2024 Food and Beverage Undisputed 01/23/2026 1145876153 CMS
E.R. Squibb & Sons, L.L.C. $16.44 02/12/2024 Food and Beverage Undisputed 01/23/2026 1101375314 CMS
E.R. Squibb & Sons, L.L.C. $19.89 02/13/2024 Food and Beverage Undisputed 01/23/2026 1101375302 CMS
E.R. Squibb & Sons, L.L.C. $28.63 08/13/2024 Food and Beverage Undisputed 01/23/2026 1101375376 CMS
E.R. Squibb & Sons, L.L.C. $26.87 10/18/2024 Food and Beverage Undisputed 01/23/2026 1101375410 CMS
E.R. Squibb & Sons, L.L.C. $19.47 11/08/2024 Food and Beverage Undisputed 01/23/2026 1101375390 CMS
E.R. Squibb & Sons, L.L.C. $17.69 12/09/2024 Food and Beverage Undisputed 01/23/2026 1101375406 CMS
Eisai Inc. $24.52 04/15/2024 Food and Beverage Undisputed 01/23/2026 1110757022 CMS
Eisai Inc. $22.84 07/08/2024 Food and Beverage Undisputed 01/23/2026 1110757024 CMS
Eisai Inc. $21.04 09/17/2024 Food and Beverage Undisputed 01/23/2026 1110757020 CMS
Gilead Sciences, Inc. $27.75 04/23/2024 Food and Beverage Undisputed 01/23/2026 1133805399 CMS
Gilead Sciences, Inc. $27.30 06/07/2024 Food and Beverage Undisputed 01/23/2026 1133805401 CMS
Merck Sharp & Dohme LLC $19.88 02/08/2024 Food and Beverage Undisputed 01/23/2026 1141910138 CMS
Novartis Pharmaceuticals Corporation $21.41 04/05/2024 Food and Beverage Undisputed 01/23/2026 1087396844 CMS
Novartis Pharmaceuticals Corporation $27.04 09/03/2024 Food and Beverage Undisputed 01/23/2026 1087396856 CMS
Novartis Pharmaceuticals Corporation $17.57 10/21/2024 Food and Beverage Undisputed 01/23/2026 1087396866 CMS
Novartis Pharmaceuticals Corporation $22.78 11/12/2024 Food and Beverage Undisputed 01/23/2026 1087396862 CMS
Novo Nordisk Inc $23.48 01/06/2024 Food and Beverage Undisputed 01/23/2026 1097277077 CMS
Novo Nordisk Inc $23.45 07/31/2024 Food and Beverage Undisputed 01/23/2026 1096568722 CMS
PFIZER INC. $26.93 01/30/2024 Food and Beverage Undisputed 01/23/2026 1131026903 CMS
PFIZER INC. $22.08 02/05/2024 Food and Beverage Undisputed 01/23/2026 1131304594 CMS
PFIZER INC. $11.65 02/15/2024 Food and Beverage Undisputed 01/23/2026 1132022633 CMS
PFIZER INC. $30.17 04/09/2024 Food and Beverage Undisputed 01/23/2026 1131321650 CMS
PFIZER INC. $3.60 04/24/2024 Food and Beverage Undisputed 01/23/2026 1131326373 CMS
PFIZER INC. $8.03 05/08/2024 Food and Beverage Undisputed 01/23/2026 1131314393 CMS
PFIZER INC. $29.79 09/26/2024 Food and Beverage Undisputed 01/23/2026 1132023001 CMS
PFIZER INC. $30.46 09/27/2024 Food and Beverage Undisputed 01/23/2026 1131356355 CMS
PFIZER INC. $21.24 12/30/2024 Food and Beverage Undisputed 01/23/2026 1131585715 CMS
PharmaEssentia USA Corporation $33.29 05/07/2024 Food and Beverage Undisputed 01/23/2026 1137310838 CMS
Regeneron Healthcare Solutions, Inc. $26.76 04/11/2024 Food and Beverage Undisputed 01/23/2026 1114262686 CMS
SpringWorks Therapeutics, Inc. $25.24 01/09/2024 Food and Beverage Undisputed 01/23/2026 1085809144 CMS
Sumitomo Pharma America, Inc. $16.12 01/19/2024 Food and Beverage Undisputed 01/23/2026 1148939830 CMS
Takeda Pharmaceuticals U.S.A., Inc. $23.84 11/19/2024 Food and Beverage Undisputed 01/23/2026 1144971085 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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