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

LOUIS WEIMER

Allopathic & Osteopathic Physicians Psychiatry & Neurology Neurology

NPI
1356357404
CMS profile
15836
Location
NEW YORK, NY

General Payments · PY2018–2024

$111,053.20

  • Reported across 205 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$6,677.37

20 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
Consulting Fee $6,277.50 4
Food and Beverage $399.87 16

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $28,519.52 84
PY2019 $26,299.55 52
PY2020 $26,713.51 20
PY2021 $4,801.90 6
PY2022 $9,394.71 7
PY2023 $8,646.64 16
PY2024 $6,677.37 20

Payment records · PY2024 (20)

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
Alexion Pharmaceuticals, Inc. $25.32 02/09/2024 Food and Beverage Undisputed 01/23/2026 1093932441 CMS
Alexion Pharmaceuticals, Inc. $32.94 04/12/2024 Food and Beverage Undisputed 01/23/2026 1093885928 CMS
Alexion Pharmaceuticals, Inc. $30.39 06/07/2024 Food and Beverage Undisputed 01/23/2026 1093972276 CMS
Alexion Pharmaceuticals, Inc. $26.58 09/13/2024 Food and Beverage Undisputed 01/23/2026 1093925584 CMS
Alexion Pharmaceuticals, Inc. $28.77 11/06/2024 Food and Beverage Undisputed 01/23/2026 1093886214 CMS
ARGENX US, INC. $24.45 08/14/2024 Food and Beverage Undisputed 01/23/2026 1142109427 CMS
ARGENX US, INC. $32.22 10/04/2024 Food and Beverage Undisputed 01/23/2026 1142123563 CMS
ARGENX US, INC. $24.71 12/13/2024 Food and Beverage Undisputed 01/23/2026 1142125287 CMS
CATALYST PHARMACEUTICALS, INC. $24.89 02/26/2024 Food and Beverage Undisputed 01/23/2026 1144458143 CMS
CATALYST PHARMACEUTICALS, INC. $22.00 06/03/2024 Food and Beverage Undisputed 01/23/2026 1144458145 CMS
CATALYST PHARMACEUTICALS, INC. $13.27 06/14/2024 Food and Beverage Undisputed 01/23/2026 1144458147 CMS
F. Hoffmann-La Roche AG $1,863.00 01/01/2024 Consulting Fee Undisputed 01/23/2026 1133056089 CMS
F. Hoffmann-La Roche AG $1,207.50 04/01/2024 Consulting Fee Undisputed 01/23/2026 1133056093 CMS
F. Hoffmann-La Roche AG $1,311.00 07/01/2024 Consulting Fee Undisputed 01/23/2026 1133056097 CMS
F. Hoffmann-La Roche AG $1,896.00 10/01/2024 Consulting Fee Undisputed 01/23/2026 1133056101 CMS
Grifols USA, LLC $23.70 08/02/2024 Food and Beverage Undisputed 01/23/2026 1124740554 CMS
Grifols USA, LLC $19.66 12/04/2024 Food and Beverage Undisputed 01/23/2026 1124740556 CMS
Takeda Pharmaceuticals U.S.A., Inc. $21.58 02/16/2024 Food and Beverage Undisputed 01/23/2026 1137695792 CMS
Takeda Pharmaceuticals U.S.A., Inc. $24.76 05/17/2024 Food and Beverage Undisputed 01/23/2026 1137695794 CMS
Takeda Pharmaceuticals U.S.A., Inc. $24.63 09/20/2024 Food and Beverage Undisputed 01/23/2026 1137695796 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

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.