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

DAVID J KNYSAK

Allopathic & Osteopathic Physicians Allergy & Immunology

NPI
1609876101
CMS profile
208276
Location
ELMHURST, IL

General Payments · PY2018–2024

$5,701.47

  • Reported across 319 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$903.57

43 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 $903.57 43

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $911.54 53
PY2019 $904.04 54
PY2020 $514.69 27
PY2021 $793.72 46
PY2022 $735.99 44
PY2023 $937.92 52
PY2024 $903.57 43

Payment records · PY2024 (43)

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
Amgen Inc. $17.31 05/14/2024 Food and Beverage Undisputed 01/23/2026 1111621860 CMS
Amgen Inc. $27.47 07/29/2024 Food and Beverage Undisputed 01/23/2026 1111621862 CMS
Amgen Inc. $27.41 11/11/2024 Food and Beverage Undisputed 01/23/2026 1111621864 CMS
AstraZeneca Pharmaceuticals LP $15.55 01/16/2024 Food and Beverage Undisputed 01/23/2026 1104566792 CMS
AstraZeneca Pharmaceuticals LP $18.03 02/21/2024 Food and Beverage Undisputed 01/23/2026 1104465510 CMS
AstraZeneca Pharmaceuticals LP $20.62 04/17/2024 Food and Beverage Undisputed 01/23/2026 1105488591 CMS
AstraZeneca Pharmaceuticals LP $24.23 06/11/2024 Food and Beverage Undisputed 01/23/2026 1105439782 CMS
AstraZeneca Pharmaceuticals LP $20.36 07/30/2024 Food and Beverage Undisputed 01/23/2026 1104663017 CMS
AstraZeneca Pharmaceuticals LP $23.67 09/04/2024 Food and Beverage Undisputed 01/23/2026 1105252369 CMS
AstraZeneca Pharmaceuticals LP $24.39 10/15/2024 Food and Beverage Undisputed 01/23/2026 1105475147 CMS
AstraZeneca Pharmaceuticals LP $15.65 11/12/2024 Food and Beverage Undisputed 01/23/2026 1104726441 CMS
AstraZeneca Pharmaceuticals LP $16.06 12/12/2024 Food and Beverage Undisputed 01/23/2026 1104582666 CMS
AstraZeneca Pharmaceuticals LP $23.77 12/17/2024 Food and Beverage Undisputed 01/23/2026 1105630125 CMS
GENZYME CORPORATION $15.95 04/23/2024 Food and Beverage Undisputed 01/23/2026 1139583362 CMS
GENZYME CORPORATION $25.62 08/06/2024 Food and Beverage Undisputed 01/23/2026 1139583404 CMS
GENZYME CORPORATION $28.82 10/08/2024 Food and Beverage Undisputed 01/23/2026 1139583422 CMS
GlaxoSmithKline, LLC. $27.96 02/26/2024 Food and Beverage Undisputed 01/23/2026 1116261225 CMS
GlaxoSmithKline, LLC. $20.48 03/17/2024 Food and Beverage Undisputed 01/23/2026 1116272178 CMS
GlaxoSmithKline, LLC. $20.22 04/23/2024 Food and Beverage Undisputed 01/23/2026 1116114079 CMS
GlaxoSmithKline, LLC. $16.64 06/04/2024 Food and Beverage Undisputed 01/23/2026 1116573826 CMS
GlaxoSmithKline, LLC. $25.09 06/17/2024 Food and Beverage Undisputed 01/23/2026 1116536978 CMS
GlaxoSmithKline, LLC. $30.79 09/09/2024 Food and Beverage Undisputed 01/23/2026 1116173364 CMS
GlaxoSmithKline, LLC. $25.68 10/27/2024 Food and Beverage Undisputed 01/23/2026 1116559493 CMS
Incyte Corporation $20.15 11/04/2024 Food and Beverage Undisputed 01/23/2026 1141184130 CMS
Incyte Corporation $22.17 12/10/2024 Food and Beverage Undisputed 01/23/2026 1141182090 CMS
Novartis Pharmaceuticals Corporation $22.39 01/30/2024 Food and Beverage Undisputed 01/23/2026 1087011042 CMS
Novartis Pharmaceuticals Corporation $23.50 03/05/2024 Food and Beverage Undisputed 01/23/2026 1087011052 CMS
Novartis Pharmaceuticals Corporation $22.83 05/21/2024 Food and Beverage Undisputed 01/23/2026 1087011072 CMS
Novartis Pharmaceuticals Corporation $16.26 07/02/2024 Food and Beverage Undisputed 01/23/2026 1087011082 CMS
Novartis Pharmaceuticals Corporation $17.32 08/27/2024 Food and Beverage Undisputed 01/23/2026 1087011092 CMS
Novartis Pharmaceuticals Corporation $22.60 08/29/2024 Food and Beverage Undisputed 01/23/2026 1087011094 CMS
Novartis Pharmaceuticals Corporation $13.69 11/04/2024 Food and Beverage Undisputed 01/23/2026 1087011114 CMS
Novartis Pharmaceuticals Corporation $21.64 11/19/2024 Food and Beverage Undisputed 01/23/2026 1087011124 CMS
Optinose US, Inc. $16.64 01/24/2024 Food and Beverage Undisputed 01/23/2026 1142175472 CMS
Optinose US, Inc. $15.03 02/26/2024 Food and Beverage Undisputed 01/23/2026 1142175484 CMS
Optinose US, Inc. $17.47 06/04/2024 Food and Beverage Undisputed 01/23/2026 1142175512 CMS
Optinose US, Inc. $16.45 07/08/2024 Food and Beverage Undisputed 01/23/2026 1142175566 CMS
Optinose US, Inc. $17.76 09/10/2024 Food and Beverage Undisputed 01/23/2026 1142175594 CMS
Optinose US, Inc. $16.09 10/21/2024 Food and Beverage Undisputed 01/23/2026 1142175590 CMS
PFIZER INC. $15.80 09/16/2024 Food and Beverage Undisputed 01/23/2026 1131984299 CMS
Regeneron Healthcare Solutions, Inc. $27.19 01/09/2024 Food and Beverage Undisputed 01/23/2026 1114090027 CMS
Regeneron Healthcare Solutions, Inc. $26.12 01/29/2024 Food and Beverage Undisputed 01/23/2026 1114090029 CMS
Regeneron Healthcare Solutions, Inc. $20.70 07/16/2024 Food and Beverage Undisputed 01/23/2026 1114090031 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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