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

WEI AN

Allopathic & Osteopathic Physicians Allergy & Immunology

NPI
1942576947
CMS profile
2790607
Location
WEST HARTFORD, CT

General Payments · PY2018–2024

$2,012.69

  • Reported across 95 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$1,194.68

66 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 $1,194.68 66

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $158.33 4
PY2019 $36.23 2
PY2020 $38.97 2
PY2021 $124.87 11
PY2023 $459.61 10
PY2024 $1,194.68 66

Payment records · PY2024 (66)

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

Program year 2024 20182019202020212023 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 $20.91 02/12/2024 Food and Beverage Undisputed 01/23/2026 1104432889 CMS
AstraZeneca Pharmaceuticals LP $19.95 03/04/2024 Food and Beverage Undisputed 01/23/2026 1105563672 CMS
AstraZeneca Pharmaceuticals LP $10.28 03/04/2024 Food and Beverage Undisputed 01/23/2026 1105718136 CMS
AstraZeneca Pharmaceuticals LP $22.65 05/06/2024 Food and Beverage Undisputed 01/23/2026 1104570680 CMS
AstraZeneca Pharmaceuticals LP $20.27 05/17/2024 Food and Beverage Undisputed 01/23/2026 1104508088 CMS
AstraZeneca Pharmaceuticals LP $24.69 05/20/2024 Food and Beverage Undisputed 01/23/2026 1104640395 CMS
AstraZeneca Pharmaceuticals LP $22.49 06/10/2024 Food and Beverage Undisputed 01/23/2026 1105309921 CMS
AstraZeneca Pharmaceuticals LP $20.43 07/09/2024 Food and Beverage Undisputed 01/23/2026 1105702544 CMS
AstraZeneca Pharmaceuticals LP $28.38 07/22/2024 Food and Beverage Undisputed 01/23/2026 1105811541 CMS
AstraZeneca Pharmaceuticals LP $22.79 10/21/2024 Food and Beverage Undisputed 01/23/2026 1104370909 CMS
AstraZeneca Pharmaceuticals LP $18.21 10/22/2024 Food and Beverage Undisputed 01/23/2026 1105843701 CMS
AstraZeneca Pharmaceuticals LP $21.83 11/11/2024 Food and Beverage Undisputed 01/23/2026 1105482365 CMS
AstraZeneca Pharmaceuticals LP $17.66 11/20/2024 Food and Beverage Undisputed 01/23/2026 1104262047 CMS
AstraZeneca Pharmaceuticals LP $19.88 12/02/2024 Food and Beverage Undisputed 01/23/2026 1105517083 CMS
AstraZeneca Pharmaceuticals LP $31.33 12/18/2024 Food and Beverage Undisputed 01/23/2026 1104277879 CMS
CSL Behring $26.74 08/21/2024 Food and Beverage Undisputed 01/23/2026 1134626251 CMS
Genentech USA, Inc. $18.77 04/09/2024 Food and Beverage Undisputed 01/23/2026 1133131991 CMS
Genentech USA, Inc. $28.58 11/19/2024 Food and Beverage Undisputed 01/23/2026 1133131995 CMS
GlaxoSmithKline, LLC. $4.21 01/08/2024 Food and Beverage Undisputed 01/23/2026 1116358275 CMS
GlaxoSmithKline, LLC. $8.86 01/19/2024 Food and Beverage Undisputed 01/23/2026 1116436239 CMS
GlaxoSmithKline, LLC. $3.94 02/07/2024 Food and Beverage Undisputed 01/23/2026 1116055117 CMS
GlaxoSmithKline, LLC. $20.31 02/07/2024 Food and Beverage Undisputed 01/23/2026 1116354016 CMS
GlaxoSmithKline, LLC. $10.04 02/16/2024 Food and Beverage Undisputed 01/23/2026 1115765712 CMS
GlaxoSmithKline, LLC. $1.53 03/04/2024 Food and Beverage Undisputed 01/23/2026 1115765027 CMS
GlaxoSmithKline, LLC. $27.12 03/08/2024 Food and Beverage Undisputed 01/23/2026 1116432249 CMS
GlaxoSmithKline, LLC. $4.68 03/25/2024 Food and Beverage Undisputed 01/23/2026 1116694677 CMS
GlaxoSmithKline, LLC. $9.64 03/29/2024 Food and Beverage Undisputed 01/23/2026 1116441419 CMS
GlaxoSmithKline, LLC. $30.95 04/30/2024 Food and Beverage Undisputed 01/23/2026 1116505117 CMS
GlaxoSmithKline, LLC. $12.98 05/03/2024 Food and Beverage Undisputed 01/23/2026 1115929341 CMS
GlaxoSmithKline, LLC. $4.17 05/06/2024 Food and Beverage Undisputed 01/23/2026 1116275954 CMS
GlaxoSmithKline, LLC. $13.75 05/10/2024 Food and Beverage Undisputed 01/23/2026 1116414023 CMS
GlaxoSmithKline, LLC. $13.44 05/17/2024 Food and Beverage Undisputed 01/23/2026 1116101538 CMS
GlaxoSmithKline, LLC. $26.05 06/03/2024 Food and Beverage Undisputed 01/23/2026 1116640546 CMS
GlaxoSmithKline, LLC. $18.11 06/07/2024 Food and Beverage Undisputed 01/23/2026 1116185960 CMS
GlaxoSmithKline, LLC. $9.92 06/14/2024 Food and Beverage Undisputed 01/23/2026 1116682499 CMS
GlaxoSmithKline, LLC. $13.13 06/21/2024 Food and Beverage Undisputed 01/23/2026 1116436221 CMS
GlaxoSmithKline, LLC. $5.25 07/01/2024 Food and Beverage Undisputed 01/23/2026 1115942194 CMS
GlaxoSmithKline, LLC. $14.18 07/12/2024 Food and Beverage Undisputed 01/23/2026 1116247108 CMS
GlaxoSmithKline, LLC. $3.48 07/22/2024 Food and Beverage Undisputed 01/23/2026 1116399760 CMS
GlaxoSmithKline, LLC. $11.21 08/16/2024 Food and Beverage Undisputed 01/23/2026 1115948513 CMS
GlaxoSmithKline, LLC. $8.98 08/28/2024 Food and Beverage Undisputed 01/23/2026 1116436655 CMS
GlaxoSmithKline, LLC. $10.56 09/11/2024 Food and Beverage Undisputed 01/23/2026 1116568013 CMS
GlaxoSmithKline, LLC. $16.17 09/14/2024 Food and Beverage Undisputed 01/23/2026 1116261215 CMS
GlaxoSmithKline, LLC. $12.99 10/28/2024 Food and Beverage Undisputed 01/23/2026 1116225862 CMS
GlaxoSmithKline, LLC. $17.47 11/09/2024 Food and Beverage Undisputed 01/23/2026 1116241373 CMS
GlaxoSmithKline, LLC. $10.64 11/13/2024 Food and Beverage Undisputed 01/23/2026 1116105404 CMS
GlaxoSmithKline, LLC. $1.87 11/25/2024 Food and Beverage Undisputed 01/23/2026 1116675561 CMS
GlaxoSmithKline, LLC. $29.48 12/12/2024 Food and Beverage Undisputed 01/23/2026 1115940273 CMS
GlaxoSmithKline, LLC. $11.12 12/16/2024 Food and Beverage Undisputed 01/23/2026 1116183742 CMS
Grifols USA, LLC $18.99 08/13/2024 Food and Beverage Undisputed 01/23/2026 1124719200 CMS
LEO Pharma Inc. $15.44 01/23/2024 Food and Beverage Undisputed 01/23/2026 1152618899 CMS
LEO Pharma Inc. $21.55 03/25/2024 Food and Beverage Undisputed 01/23/2026 1152618901 CMS
LEO Pharma Inc. $6.01 04/24/2024 Food and Beverage Undisputed 01/23/2026 1152618903 CMS
LEO Pharma Inc. $19.77 05/14/2024 Food and Beverage Undisputed 01/23/2026 1152618905 CMS
LEO Pharma Inc. $116.84 07/18/2024 Food and Beverage Undisputed 01/23/2026 1152618907 CMS
LEO Pharma Inc. $22.06 07/29/2024 Food and Beverage Undisputed 01/23/2026 1152618909 CMS
LEO Pharma Inc. $18.05 08/20/2024 Food and Beverage Undisputed 01/23/2026 1152618911 CMS
LEO Pharma Inc. $0.40 08/20/2024 Food and Beverage Undisputed 01/23/2026 1152618913 CMS
LEO Pharma Inc. $16.70 11/05/2024 Food and Beverage Undisputed 01/23/2026 1152618915 CMS
Novartis Pharmaceuticals Corporation $21.74 02/06/2024 Food and Beverage Undisputed 01/23/2026 1086747115 CMS
Novartis Pharmaceuticals Corporation $22.63 08/30/2024 Food and Beverage Undisputed 01/23/2026 1086747117 CMS
Novartis Pharmaceuticals Corporation $22.22 10/15/2024 Food and Beverage Undisputed 01/23/2026 1086747127 CMS
Takeda Pharmaceuticals U.S.A., Inc. $24.19 03/11/2024 Food and Beverage Undisputed 01/23/2026 1137470727 CMS
Takeda Pharmaceuticals U.S.A., Inc. $28.15 07/15/2024 Food and Beverage Undisputed 01/23/2026 1137470733 CMS
Takeda Pharmaceuticals U.S.A., Inc. $20.61 08/27/2024 Food and Beverage Undisputed 01/23/2026 1137470739 CMS
Takeda Pharmaceuticals U.S.A., Inc. $17.26 12/16/2024 Food and Beverage Undisputed 01/23/2026 1137470745 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, 2023, 2024
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2020 , PY2021 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.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.