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 A SIMPSON

Allopathic & Osteopathic Physicians Psychiatry & Neurology Neurology

NPI
1912996265
CMS profile
359113
Location
FARMINGTON HILLS, MI

General Payments · PY2018–2024

$16,153.70

  • Reported across 307 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$827.37

38 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 $827.37 38

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
UCB, Inc. $229.07 12
Biogen, Inc. $183.85 10
Alexion Pharmaceuticals, Inc. $127.90 1
Lilly USA, LLC $87.47 5
Sumitomo Pharma America, Inc. $81.93 4
CSL Behring $41.50 2
Genentech USA, Inc. $27.37 1
ABBVIE INC. $17.73 1
TG THERAPEUTICS, INC. $15.75 1
CATALYST PHARMACEUTICALS, INC. $14.80 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $895.88 44
PY2019 $1,107.07 61
PY2020 $92.66 6
PY2021 $430.83 22
PY2022 $11,651.06 74
PY2023 $1,148.83 62
PY2024 $827.37 38

Payment records · PY2024 (38)

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
ABBVIE INC. $17.73 06/17/2024 Food and Beverage Undisputed 01/23/2026 1106107083 CMS
Alexion Pharmaceuticals, Inc. $127.90 07/31/2024 Food and Beverage Undisputed 01/23/2026 1094048841 CMS
Biogen, Inc. $1.49 01/12/2024 Food and Beverage Undisputed 01/23/2026 1104841668 CMS
Biogen, Inc. $22.57 01/13/2024 Food and Beverage Undisputed 01/23/2026 1104852098 CMS
Biogen, Inc. $28.03 02/27/2024 Food and Beverage Undisputed 01/23/2026 1104832240 CMS
Biogen, Inc. $28.46 03/20/2024 Food and Beverage Undisputed 01/23/2026 1104806495 CMS
Biogen, Inc. $15.56 04/05/2024 Food and Beverage Undisputed 01/23/2026 1104869206 CMS
Biogen, Inc. $22.85 04/23/2024 Food and Beverage Undisputed 01/23/2026 1104825426 CMS
Biogen, Inc. $13.89 05/29/2024 Food and Beverage Undisputed 01/23/2026 1104839266 CMS
Biogen, Inc. $18.22 06/19/2024 Food and Beverage Undisputed 01/23/2026 1104871468 CMS
Biogen, Inc. $14.14 07/22/2024 Food and Beverage Undisputed 01/23/2026 1104863616 CMS
Biogen, Inc. $18.64 08/07/2024 Food and Beverage Undisputed 01/23/2026 1104871470 CMS
CATALYST PHARMACEUTICALS, INC. $14.80 02/12/2024 Food and Beverage Undisputed 01/23/2026 1144456210 CMS
CSL Behring $25.86 01/09/2024 Food and Beverage Undisputed 01/23/2026 1134600885 CMS
CSL Behring $15.64 03/27/2024 Food and Beverage Undisputed 01/23/2026 1134600903 CMS
Genentech USA, Inc. $27.37 01/23/2024 Food and Beverage Undisputed 01/23/2026 1132999045 CMS
Lilly USA, LLC $19.21 01/30/2024 Food and Beverage Undisputed 01/23/2026 1136142169 CMS
Lilly USA, LLC $14.60 03/12/2024 Food and Beverage Undisputed 01/23/2026 1136126113 CMS
Lilly USA, LLC $16.74 04/02/2024 Food and Beverage Undisputed 01/23/2026 1136126111 CMS
Lilly USA, LLC $22.01 05/12/2024 Food and Beverage Undisputed 01/23/2026 1136149392 CMS
Lilly USA, LLC $14.91 06/24/2024 Food and Beverage Undisputed 01/23/2026 1136149394 CMS
Sumitomo Pharma America, Inc. $20.71 01/17/2024 Food and Beverage Undisputed 01/23/2026 1148920629 CMS
Sumitomo Pharma America, Inc. $22.72 03/05/2024 Food and Beverage Undisputed 01/23/2026 1148920631 CMS
Sumitomo Pharma America, Inc. $17.35 04/09/2024 Food and Beverage Undisputed 01/23/2026 1148920633 CMS
Sumitomo Pharma America, Inc. $21.15 06/19/2024 Food and Beverage Undisputed 01/23/2026 1148920635 CMS
TG Therapeutics, Inc. $15.75 06/12/2024 Food and Beverage Undisputed 01/23/2026 1136891504 CMS
UCB, Inc. $6.51 01/12/2024 Food and Beverage Undisputed 01/23/2026 1143054241 CMS
UCB, Inc. $18.06 01/31/2024 Food and Beverage Undisputed 01/23/2026 1143054243 CMS
UCB, Inc. $10.77 02/21/2024 Food and Beverage Undisputed 01/23/2026 1143045031 CMS
UCB, Inc. $22.44 02/23/2024 Food and Beverage Undisputed 01/23/2026 1143045033 CMS
UCB, Inc. $11.46 03/04/2024 Food and Beverage Undisputed 01/23/2026 1143045035 CMS
UCB, Inc. $22.70 03/09/2024 Food and Beverage Undisputed 01/23/2026 1143045037 CMS
UCB, Inc. $29.60 03/26/2024 Food and Beverage Undisputed 01/23/2026 1143045039 CMS
UCB, Inc. $25.68 04/09/2024 Food and Beverage Undisputed 01/23/2026 1143045041 CMS
UCB, Inc. $1.72 05/10/2024 Food and Beverage Undisputed 01/23/2026 1143045043 CMS
UCB, Inc. $31.63 05/10/2024 Food and Beverage Undisputed 01/23/2026 1143045045 CMS
UCB, Inc. $24.25 05/28/2024 Food and Beverage Undisputed 01/23/2026 1143045047 CMS
UCB, Inc. $24.25 06/25/2024 Food and Beverage Undisputed 01/23/2026 1143045049 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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