Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-06-30 View official record Methodology

Covered recipient · General Payments record

TOMMY CHUA SIM

Allopathic & Osteopathic Physicians Allergy & Immunology Allergy

NPI
1306872353
CMS profile
240379
Location
FRIENDSWOOD, TX

General Payments · PY2019–2024

$5,140.37

  • Reported across 269 records
  • CMS publication 2026-06-30

Latest program year · PY2024

$782.12

32 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 $782.12 32

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
GENZYME CORPORATION $276.18 8
GlaxoSmithKline, LLC. $216.84 10
Acerta Pharma LLC $186.03 9
Regeneron Healthcare Solutions, Inc. $66.39 3
Grifols USA, LLC $36.68 2

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $920.47 55
PY2020 $1,072.81 53
PY2021 $977.97 54
PY2022 $781.70 41
PY2023 $605.30 34
PY2024 $782.12 32

Payment records · PY2024 (32)

Sorted by paying entity, then date · as published by CMS

Program year 2024 20192020202120222023 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
AstraZeneca Pharmaceuticals LP $14.38 02/05/2024 Food and Beverage Undisputed 06/30/2026 1105896328 CMS
AstraZeneca Pharmaceuticals LP $20.43 04/02/2024 Food and Beverage Undisputed 06/30/2026 1105535364 CMS
AstraZeneca Pharmaceuticals LP $16.15 05/20/2024 Food and Beverage Undisputed 06/30/2026 1104540374 CMS
AstraZeneca Pharmaceuticals LP $21.62 07/23/2024 Food and Beverage Undisputed 06/30/2026 1105786386 CMS
AstraZeneca Pharmaceuticals LP $29.41 08/12/2024 Food and Beverage Undisputed 06/30/2026 1105330265 CMS
AstraZeneca Pharmaceuticals LP $23.46 09/24/2024 Food and Beverage Undisputed 06/30/2026 1105898830 CMS
AstraZeneca Pharmaceuticals LP $23.42 09/30/2024 Food and Beverage Undisputed 06/30/2026 1104267023 CMS
AstraZeneca Pharmaceuticals LP $15.32 10/09/2024 Food and Beverage Undisputed 06/30/2026 1105556582 CMS
AstraZeneca Pharmaceuticals LP $21.84 11/06/2024 Food and Beverage Undisputed 06/30/2026 1104287570 CMS
GENZYME CORPORATION $94.54 01/26/2024 Food and Beverage Undisputed 06/30/2026 1139604020 CMS
GENZYME CORPORATION $22.27 02/20/2024 Food and Beverage Undisputed 06/30/2026 1139603886 CMS
GENZYME CORPORATION $30.97 03/27/2024 Food and Beverage Undisputed 06/30/2026 1139603912 CMS
GENZYME CORPORATION $35.75 05/28/2024 Food and Beverage Undisputed 06/30/2026 1139603936 CMS
GENZYME CORPORATION $23.23 06/18/2024 Food and Beverage Undisputed 06/30/2026 1139603946 CMS
GENZYME CORPORATION $31.30 08/20/2024 Food and Beverage Undisputed 06/30/2026 1139603978 CMS
GENZYME CORPORATION $20.73 09/16/2024 Food and Beverage Undisputed 06/30/2026 1139603982 CMS
GENZYME CORPORATION $17.39 10/23/2024 Food and Beverage Undisputed 06/30/2026 1139604006 CMS
GlaxoSmithKline, LLC. $21.92 01/03/2024 Food and Beverage Undisputed 06/30/2026 1116726442 CMS
GlaxoSmithKline, LLC. $14.49 01/31/2024 Food and Beverage Undisputed 06/30/2026 1116391510 CMS
GlaxoSmithKline, LLC. $28.53 02/14/2024 Food and Beverage Undisputed 06/30/2026 1116607030 CMS
GlaxoSmithKline, LLC. $19.70 04/08/2024 Food and Beverage Undisputed 06/30/2026 1116655981 CMS
GlaxoSmithKline, LLC. $22.23 05/07/2024 Food and Beverage Undisputed 06/30/2026 1116375962 CMS
GlaxoSmithKline, LLC. $21.29 05/22/2024 Food and Beverage Undisputed 06/30/2026 1116503013 CMS
GlaxoSmithKline, LLC. $16.72 06/12/2024 Food and Beverage Undisputed 06/30/2026 1116712913 CMS
GlaxoSmithKline, LLC. $21.79 08/26/2024 Food and Beverage Undisputed 06/30/2026 1116709329 CMS
GlaxoSmithKline, LLC. $22.87 09/24/2024 Food and Beverage Undisputed 06/30/2026 1116124875 CMS
GlaxoSmithKline, LLC. $27.30 11/13/2024 Food and Beverage Undisputed 06/30/2026 1115764052 CMS
Grifols USA, LLC $16.75 03/04/2024 Food and Beverage Undisputed 06/30/2026 1124724190 CMS
Grifols USA, LLC $19.93 09/10/2024 Food and Beverage Undisputed 06/30/2026 1124724192 CMS
Regeneron Healthcare Solutions, Inc. $25.54 01/24/2024 Food and Beverage Undisputed 06/30/2026 1114174130 CMS
Regeneron Healthcare Solutions, Inc. $21.90 04/17/2024 Food and Beverage Undisputed 06/30/2026 1114174134 CMS
Regeneron Healthcare Solutions, Inc. $18.95 07/17/2024 Food and Beverage Undisputed 06/30/2026 1114174138 CMS

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2019, 2020, 2021, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P06302026_06032026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.