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

MARK GUDESBLATT

Allopathic & Osteopathic Physicians Psychiatry & Neurology Neurology

NPI
1528030269
CMS profile
250598
Location
ISLIP, NY

General Payments · PY2018–2024

$279,658.97

  • Reported across 786 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$984.07

22 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 $917.35 20
Travel and Lodging $50.00 1
Education $16.72 1

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $71,631.86 176
PY2019 $81,508.21 177
PY2020 $48,854.41 84
PY2021 $33,237.55 100
PY2022 $27,152.62 157
PY2023 $16,290.25 70
PY2024 $984.07 22

Payment records · PY2024 (22)

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
ACADIA Pharmaceuticals Inc $104.94 03/18/2024 Food and Beverage Undisputed 01/23/2026 1147971723 CMS
Amgen Inc. $18.77 02/09/2024 Food and Beverage Undisputed 01/23/2026 1111590554 CMS
Amgen Inc. $10.28 02/23/2024 Food and Beverage Undisputed 01/23/2026 1111590556 CMS
Amgen Inc. $8.89 04/25/2024 Food and Beverage Undisputed 01/23/2026 1111590558 CMS
Amgen Inc. $16.62 05/21/2024 Food and Beverage Undisputed 01/23/2026 1111590560 CMS
Amgen Inc. $10.61 06/24/2024 Food and Beverage Undisputed 01/23/2026 1111590562 CMS
Amgen Inc. $24.22 08/30/2024 Food and Beverage Undisputed 01/23/2026 1111590564 CMS
Amgen Inc. $143.59 12/02/2024 Food and Beverage Undisputed 01/23/2026 1111590566 CMS
Amgen Inc. $13.91 12/20/2024 Food and Beverage Undisputed 01/23/2026 1111590568 CMS
Biogen, Inc. $21.93 02/15/2024 Food and Beverage Undisputed 01/23/2026 1104871476 CMS
Biogen, Inc. $81.23 04/15/2024 Food and Beverage Undisputed 01/23/2026 1104812033 CMS
Biogen, Inc. $27.97 10/08/2024 Food and Beverage Undisputed 01/23/2026 1104857738 CMS
CATALYST PHARMACEUTICALS, INC. $26.02 02/12/2024 Food and Beverage Undisputed 01/23/2026 1144445766 CMS
CATALYST PHARMACEUTICALS, INC. $16.72 11/26/2024 Education Undisputed 01/23/2026 1144445768 CMS
EMD Serono, Inc. $38.34 12/10/2024 Food and Beverage Undisputed 01/23/2026 1120265247 CMS
JAZZ PHARMACEUTICALS INC. $127.34 04/18/2024 Food and Beverage Undisputed 01/23/2026 1150219067 CMS
Lilly USA, LLC $24.71 11/05/2024 Food and Beverage Undisputed 01/23/2026 1135156839 CMS
Novartis Pharmaceuticals Corporation $34.21 10/02/2024 Food and Beverage Undisputed 01/23/2026 1086784211 CMS
PFIZER INC. $26.04 11/15/2024 Food and Beverage Undisputed 01/23/2026 1131009897 CMS
Takeda Pharmaceuticals U.S.A., Inc. $50.00 07/26/2024 Travel and Lodging Undisputed 01/23/2026 1137564478 CMS
Takeda Pharmaceuticals U.S.A., Inc. $43.45 09/23/2024 Food and Beverage Undisputed 01/23/2026 1137564482 CMS
TG Therapeutics, Inc. $114.28 12/09/2024 Food and Beverage Undisputed 01/23/2026 1136874171 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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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.