IndustryPayments

YORK SING CHAN

Allopathic & Osteopathic Physicians|Internal Medicine BROOKLYN, NY NPI 1891010286

Browse related groups: Allopathic & Osteopathic Physicians|Internal Medicine NY Acerta Pharma LLC All categories

General Payments — all program years on this page

$4,118.58

  • Category: General Payments
  • Program years: PY2018–2024
  • Record count: 191
  • As of (CMS publication): 2026-01-23

Latest program year (PY2024): $1,327.11 across 62 records · disputed records: 0

Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.

How this figure is 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

Latest program year (PY2024) · sorted by reported total.

Nature of paymentAmountRecords
Food and Beverage $1,327.1162

By paying entity

Latest program year (PY2024) · sorted by reported total.

Paying entityAmountRecords
Acerta Pharma LLC $380.2518
Gilead Sciences, Inc. $272.119
Exact Sciences Corporation $144.927
Lilly USA, LLC $103.864
Salix Pharmaceuticals, a division of Bausch Health US, LLC $101.626
Esperion Therapeutics, Inc. $59.234
GlaxoSmithKline, LLC. $53.832
Amgen Inc. $51.773
Phathom Pharmaceuticals, Inc. $37.052
PFIZER INC. $32.162
E.R. Squibb & Sons, L.L.C. $30.732
SHIELD THERAPEUTICS INC $20.211
Novo Nordisk AS $20.001
Boehringer Ingelheim Pharmaceuticals, Inc. $19.371

By program year

Program yearAmountRecords
2018 $262.619
2019 $202.7812
2020 $128.187
2021 $257.1211
2022 $602.0228
2023 $1,338.7662
2024 $1,327.1162

Records — PY2024 (62)

Record IDPaying entityAmountDate Nature of paymentDispute statusPublishedSource
1097516519 Novo Nordisk Inc $20.00 02/20/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1101619051 E.R. Squibb & Sons, L.L.C. $15.73 02/06/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1101619270 E.R. Squibb & Sons, L.L.C. $15.00 09/30/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1104203071 AstraZeneca Pharmaceuticals LP $23.29 08/29/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1104205471 AstraZeneca Pharmaceuticals LP $26.67 04/09/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1104212333 AstraZeneca Pharmaceuticals LP $23.54 06/20/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1104273507 AstraZeneca Pharmaceuticals LP $21.08 08/26/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1104344904 AstraZeneca Pharmaceuticals LP $23.23 03/01/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1104389619 AstraZeneca Pharmaceuticals LP $27.44 11/04/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1104429601 AstraZeneca Pharmaceuticals LP $14.51 07/25/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1104502120 AstraZeneca Pharmaceuticals LP $23.07 07/16/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1104523780 AstraZeneca Pharmaceuticals LP $19.66 09/26/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1104744315 AstraZeneca Pharmaceuticals LP $23.73 01/22/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1104752844 AstraZeneca Pharmaceuticals LP $23.32 12/17/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1104752924 AstraZeneca Pharmaceuticals LP $15.09 06/25/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1105303739 AstraZeneca Pharmaceuticals LP $23.23 02/05/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1105535348 AstraZeneca Pharmaceuticals LP $21.89 07/08/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1105634228 AstraZeneca Pharmaceuticals LP $15.65 07/18/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1105636672 AstraZeneca Pharmaceuticals LP $21.25 04/08/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1105643162 AstraZeneca Pharmaceuticals LP $13.50 09/23/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1105733385 AstraZeneca Pharmaceuticals LP $20.10 11/25/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1114611993 Exact Sciences Corporation $27.20 01/29/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1114611997 Exact Sciences Corporation $21.26 03/18/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1114612001 Exact Sciences Corporation $23.56 04/23/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1114612005 Exact Sciences Corporation $16.64 06/07/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1114612009 Exact Sciences Corporation $18.25 07/29/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1114612013 Exact Sciences Corporation $19.48 10/14/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1114612017 Exact Sciences Corporation $18.53 11/08/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1116472009 GlaxoSmithKline, LLC. $23.83 02/28/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1116631544 GlaxoSmithKline, LLC. $30.00 11/18/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1117524039 Amgen Inc. $14.06 02/26/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1117524041 Amgen Inc. $17.50 06/18/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1117524043 Amgen Inc. $20.21 09/05/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1118215368 Boehringer Ingelheim Pharmaceuticals, Inc. $19.37 01/30/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1129430602 Esperion Therapeutics, Inc. $14.10 01/08/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1129430604 Esperion Therapeutics, Inc. $15.68 08/15/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1129430606 Esperion Therapeutics, Inc. $14.52 11/05/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1129430608 Esperion Therapeutics, Inc. $14.93 12/16/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1131001779 PFIZER INC. $17.22 12/09/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1131312623 PFIZER INC. $14.94 04/18/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1133637485 Gilead Sciences, Inc. $31.57 01/09/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1133637487 Gilead Sciences, Inc. $30.95 02/27/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1133637489 Gilead Sciences, Inc. $30.41 04/02/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1133637491 Gilead Sciences, Inc. $31.89 05/16/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1133637493 Gilead Sciences, Inc. $34.92 06/24/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1133637495 Gilead Sciences, Inc. $26.62 07/22/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1133637497 Gilead Sciences, Inc. $32.31 09/10/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1133637499 Gilead Sciences, Inc. $31.30 10/08/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1133637501 Gilead Sciences, Inc. $22.14 11/18/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1135443017 Lilly USA, LLC $27.40 06/13/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1135443019 Lilly USA, LLC $23.88 09/19/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1135485313 Lilly USA, LLC $26.41 06/26/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1135505244 Lilly USA, LLC $26.17 10/10/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1150128306 SHIELD THERAPEUTICS INC $20.21 04/25/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1151047610 Phathom Pharmaceuticals, Inc. $15.78 03/25/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1151047612 Phathom Pharmaceuticals, Inc. $21.27 04/26/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1153465634 Salix Pharmaceuticals, a division of Bausch Health US, LLC $15.00 01/24/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1153466721 Salix Pharmaceuticals, a division of Bausch Health US, LLC $18.05 03/27/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1153606792 Salix Pharmaceuticals, a division of Bausch Health US, LLC $16.82 02/28/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1153613474 Salix Pharmaceuticals, a division of Bausch Health US, LLC $18.75 05/20/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1153679172 Salix Pharmaceuticals, a division of Bausch Health US, LLC $18.14 01/09/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1153687204 Salix Pharmaceuticals, a division of Bausch Health US, LLC $14.86 07/03/2024 Food and Beverage Undisputed 01/23/2026 View at CMS

Provenance & corrections

  • Dataset: CMS Open Payments — General Payments
  • Source: CMS Open Payments dataset (bulk file)
  • Publisher of source data: Centers for Medicare & Medicaid Services
  • Generated from: OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

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