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

DONALD J CHADWICK

Allopathic & Osteopathic Physicians Psychiatry & Neurology Neurology with Special Qualifications in Child Neurology

NPI
1598712465
CMS profile
162435
Location
GOLDEN VALLEY, MN

General Payments · PY2018–2024

$882.37

  • Reported across 49 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$149.33

9 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 $149.33 9

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $41.81 3
PY2019 $156.25 8
PY2020 $46.23 3
PY2021 $137.53 9
PY2022 $212.38 8
PY2023 $138.84 9
PY2024 $149.33 9

Payment records · PY2024 (9)

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
CATALYST PHARMACEUTICALS, INC. $17.44 08/01/2024 Food and Beverage Undisputed 01/23/2026 1144449246 CMS
Corium, LLC $9.83 03/28/2024 Food and Beverage Undisputed 01/23/2026 1100123218 CMS
Eisai Inc. $14.14 05/13/2024 Food and Beverage Undisputed 01/23/2026 1110742421 CMS
JAZZ PHARMACEUTICALS INC. $21.16 12/05/2024 Food and Beverage Undisputed 01/23/2026 1150222542 CMS
Mylan Specialty L.P. $13.97 10/03/2024 Food and Beverage Undisputed 01/23/2026 1147300561 CMS
Neurelis, Inc. $15.49 05/02/2024 Food and Beverage Undisputed 01/23/2026 1145637067 CMS
SK Life Science, Inc. $14.96 03/07/2024 Food and Beverage Undisputed 01/23/2026 1154148088 CMS
Takeda Pharmaceuticals U.S.A., Inc. $18.40 11/21/2024 Food and Beverage Undisputed 01/23/2026 1137505868 CMS
UCB, Inc. $23.94 02/21/2024 Food and Beverage Undisputed 01/23/2026 1143054539 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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