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

MICHAEL CHAI

Allopathic & Osteopathic Physicians Internal Medicine

NPI
1083748727
CMS profile
48881
Location
UPLAND, CA

General Payments · PY2018–2024

$3,462.21

  • Reported across 153 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$1,023.96

41 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 $991.69 40
Education $32.27 1

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $548.71 22
PY2019 $529.78 24
PY2020 $341.78 17
PY2021 $393.27 21
PY2022 $342.54 15
PY2023 $282.17 13
PY2024 $1,023.96 41

Payment records · PY2024 (41)

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
Abbott Laboratories $145.69 01/05/2024 Food and Beverage Undisputed 01/23/2026 1124832827 CMS
ABBVIE INC. $14.90 03/25/2024 Food and Beverage Undisputed 01/23/2026 1103435050 CMS
AIMMUNE THERAPEUTICS, INC. $21.24 10/08/2024 Food and Beverage Undisputed 01/23/2026 1146989855 CMS
Alnylam Pharmaceuticals Inc. $28.66 05/13/2024 Food and Beverage Undisputed 01/23/2026 1125838435 CMS
Amgen Inc. $16.90 07/09/2024 Food and Beverage Undisputed 01/23/2026 1117220940 CMS
Amgen Inc. $15.72 10/21/2024 Food and Beverage Undisputed 01/23/2026 1115488615 CMS
Astellas Pharma US Inc $22.92 06/25/2024 Food and Beverage Undisputed 01/23/2026 1139365987 CMS
AstraZeneca Pharmaceuticals LP $17.41 03/19/2024 Food and Beverage Undisputed 01/23/2026 1104776600 CMS
AstraZeneca Pharmaceuticals LP $13.83 04/15/2024 Food and Beverage Undisputed 01/23/2026 1105429677 CMS
AstraZeneca Pharmaceuticals LP $18.10 06/04/2024 Food and Beverage Undisputed 01/23/2026 1104717639 CMS
AstraZeneca Pharmaceuticals LP $21.60 10/28/2024 Food and Beverage Undisputed 01/23/2026 1105399086 CMS
AstraZeneca Pharmaceuticals LP $14.80 11/12/2024 Food and Beverage Undisputed 01/23/2026 1105817113 CMS
AstraZeneca Pharmaceuticals LP $16.32 12/16/2024 Food and Beverage Undisputed 01/23/2026 1104520780 CMS
Corcept Therapeutics $24.01 12/17/2024 Food and Beverage Undisputed 01/23/2026 1117779035 CMS
Esperion Therapeutics, Inc. $21.37 08/05/2024 Food and Beverage Undisputed 01/23/2026 1129430382 CMS
Esperion Therapeutics, Inc. $24.53 09/16/2024 Food and Beverage Undisputed 01/23/2026 1129430384 CMS
Esperion Therapeutics, Inc. $14.72 10/16/2024 Food and Beverage Undisputed 01/23/2026 1129430386 CMS
Esperion Therapeutics, Inc. $19.85 11/25/2024 Food and Beverage Undisputed 01/23/2026 1129430388 CMS
GlaxoSmithKline, LLC. $8.84 06/06/2024 Food and Beverage Undisputed 01/23/2026 1116673090 CMS
GlaxoSmithKline, LLC. $88.91 06/26/2024 Food and Beverage Undisputed 01/23/2026 1116446490 CMS
GlaxoSmithKline, LLC. $24.81 07/17/2024 Food and Beverage Undisputed 01/23/2026 1116635606 CMS
GlaxoSmithKline, LLC. $11.97 08/02/2024 Food and Beverage Undisputed 01/23/2026 1115954065 CMS
GlaxoSmithKline, LLC. $7.25 08/30/2024 Food and Beverage Undisputed 01/23/2026 1115734844 CMS
GlaxoSmithKline, LLC. $8.02 10/21/2024 Food and Beverage Undisputed 01/23/2026 1116401259 CMS
GlaxoSmithKline, LLC. $5.91 11/14/2024 Food and Beverage Undisputed 01/23/2026 1115959725 CMS
Janssen Pharmaceuticals, Inc $21.83 04/02/2024 Food and Beverage Undisputed 01/23/2026 1077943950 CMS
Janssen Pharmaceuticals, Inc $15.40 08/20/2024 Food and Beverage Undisputed 01/23/2026 1077943904 CMS
Lilly USA, LLC $32.96 01/16/2024 Food and Beverage Undisputed 01/23/2026 1135171616 CMS
Lilly USA, LLC $24.90 03/26/2024 Food and Beverage Undisputed 01/23/2026 1135224476 CMS
Lilly USA, LLC $14.59 06/10/2024 Food and Beverage Undisputed 01/23/2026 1135203994 CMS
Lilly USA, LLC $15.87 09/18/2024 Food and Beverage Undisputed 01/23/2026 1135171618 CMS
Novo Nordisk Inc $15.41 02/07/2024 Food and Beverage Undisputed 01/23/2026 1097436394 CMS
Novo Nordisk Inc $21.00 04/23/2024 Food and Beverage Undisputed 01/23/2026 1096650942 CMS
Novo Nordisk Inc $22.71 09/27/2024 Food and Beverage Undisputed 01/23/2026 1097081537 CMS
Novo Nordisk Inc $32.27 10/10/2024 Education Undisputed 01/23/2026 1097491472 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $20.21 10/04/2024 Food and Beverage Undisputed 01/23/2026 1153467959 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $20.41 12/04/2024 Food and Beverage Undisputed 01/23/2026 1153656583 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $17.20 12/23/2024 Food and Beverage Undisputed 01/23/2026 1153480822 CMS
SANOFI-AVENTIS U.S. LLC $32.35 09/24/2024 Food and Beverage Undisputed 01/23/2026 1139743454 CMS
Sumitomo Pharma America, Inc. $18.04 11/14/2024 Food and Beverage Undisputed 01/23/2026 1148836319 CMS
Xeris Pharmaceuticals, Inc. $70.53 10/24/2024 Food and Beverage Undisputed 01/23/2026 1144605760 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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