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

DANIEL CLAASSEN

Allopathic & Osteopathic Physicians Psychiatry & Neurology Neurology

NPI
1821101411
CMS profile
263800
Location
NASHVILLE, TN

General Payments · PY2018–2024

$316,214.72

  • Reported across 410 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$50,841.44

45 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 $37,142.00 11
Travel and Lodging $12,521.05 5
Food and Beverage $1,178.39 29

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $93,434.79 109
PY2019 $49,699.99 72
PY2020 $16,467.97 20
PY2021 $23,840.91 43
PY2022 $20,692.64 37
PY2023 $61,236.98 84
PY2024 $50,841.44 45

Payment records · PY2024 (45)

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
Alnylam Pharmaceuticals Inc. $16.55 09/10/2024 Food and Beverage Undisputed 01/23/2026 1125834771 CMS
Alnylam Pharmaceuticals Inc. $33.11 09/10/2024 Food and Beverage Undisputed 01/23/2026 1125834773 CMS
Alnylam Pharmaceuticals Inc. $16.55 09/10/2024 Food and Beverage Undisputed 01/23/2026 1125834775 CMS
F. Hoffmann-La Roche AG $101.02 11/06/2024 Food and Beverage Undisputed 01/23/2026 1132993618 CMS
F. Hoffmann-La Roche AG $3,105.00 11/06/2024 Consulting Fee Undisputed 01/23/2026 1132993622 CMS
Neurocrine Biosciences, Inc. $68.00 06/15/2024 Food and Beverage Undisputed 01/23/2026 1150813348 CMS
Neurocrine Biosciences, Inc. $50.27 06/15/2024 Food and Beverage Undisputed 01/23/2026 1150813998 CMS
Neurocrine Biosciences, Inc. $26.05 06/15/2024 Food and Beverage Undisputed 01/23/2026 1150836856 CMS
Neurocrine Biosciences, Inc. $155.93 06/15/2024 Travel and Lodging Undisputed 01/23/2026 1150848734 CMS
Neurocrine Biosciences, Inc. $26.50 12/10/2024 Food and Beverage Undisputed 01/23/2026 1150835474 CMS
PTC Therapeutics, Inc. $975.00 03/21/2024 Consulting Fee Undisputed 01/23/2026 1152941304 CMS
PTC Therapeutics, Inc. $10,606.60 06/25/2024 Travel and Lodging Undisputed 01/23/2026 1152941306 CMS
PTC Therapeutics, Inc. $541.70 06/25/2024 Travel and Lodging Undisputed 01/23/2026 1152941308 CMS
PTC Therapeutics, Inc. $80.75 06/26/2024 Food and Beverage Undisputed 01/23/2026 1152941310 CMS
PTC Therapeutics, Inc. $13.06 06/27/2024 Food and Beverage Undisputed 01/23/2026 1152941312 CMS
PTC Therapeutics, Inc. $51.95 06/27/2024 Food and Beverage Undisputed 01/23/2026 1152941314 CMS
PTC Therapeutics, Inc. $13.05 06/27/2024 Food and Beverage Undisputed 01/23/2026 1152941316 CMS
PTC Therapeutics, Inc. $23.49 06/27/2024 Food and Beverage Undisputed 01/23/2026 1152941318 CMS
PTC Therapeutics, Inc. $90.00 06/27/2024 Travel and Lodging Undisputed 01/23/2026 1152941320 CMS
PTC Therapeutics, Inc. $6,500.00 06/27/2024 Consulting Fee Undisputed 01/23/2026 1152941322 CMS
PTC Therapeutics, Inc. $5,850.00 06/27/2024 Consulting Fee Undisputed 01/23/2026 1152941324 CMS
PTC Therapeutics, Inc. $112.63 08/21/2024 Food and Beverage Undisputed 01/23/2026 1152941326 CMS
PTC Therapeutics, Inc. $1,950.00 09/11/2024 Consulting Fee Undisputed 01/23/2026 1152941328 CMS
PTC Therapeutics, Inc. $17.84 09/11/2024 Food and Beverage Undisputed 01/23/2026 1152941330 CMS
PTC Therapeutics, Inc. $122.56 11/06/2024 Food and Beverage Undisputed 01/23/2026 1152941332 CMS
PTC Therapeutics, Inc. $2,600.00 11/06/2024 Consulting Fee Undisputed 01/23/2026 1152941334 CMS
PTC Therapeutics, Inc. $21.29 11/06/2024 Food and Beverage Undisputed 01/23/2026 1152941336 CMS
PTC Therapeutics, Inc. $23.53 11/06/2024 Food and Beverage Undisputed 01/23/2026 1152941338 CMS
Sage Therapeutics, Inc. $531.00 06/14/2024 Consulting Fee Undisputed 01/23/2026 1120399864 CMS
Sage Therapeutics, Inc. $531.00 10/18/2024 Consulting Fee Undisputed 01/23/2026 1120410279 CMS
Spark Therapeutics, Inc. $115.24 02/27/2024 Food and Beverage Undisputed 01/23/2026 1117465770 CMS
Spark Therapeutics, Inc. $19.26 04/17/2024 Food and Beverage Undisputed 01/23/2026 1117465772 CMS
Spark Therapeutics, Inc. $4.80 04/17/2024 Food and Beverage Undisputed 01/23/2026 1117465774 CMS
Spark Therapeutics, Inc. $6,380.00 05/21/2024 Consulting Fee Undisputed 01/23/2026 1117465776 CMS
Spark Therapeutics, Inc. $1,126.82 05/21/2024 Travel and Lodging Undisputed 01/23/2026 1117465778 CMS
Spark Therapeutics, Inc. $2,320.00 07/23/2024 Consulting Fee Undisputed 01/23/2026 1117465780 CMS
Spark Therapeutics, Inc. $6,400.00 09/10/2024 Consulting Fee Undisputed 01/23/2026 1117465782 CMS
Teva Pharmaceuticals USA, Inc. $21.60 01/25/2024 Food and Beverage Undisputed 01/23/2026 1151538119 CMS
Teva Pharmaceuticals USA, Inc. $14.43 02/17/2024 Food and Beverage Undisputed 01/23/2026 1151538135 CMS
Teva Pharmaceuticals USA, Inc. $22.22 03/04/2024 Food and Beverage Undisputed 01/23/2026 1151538155 CMS
Teva Pharmaceuticals USA, Inc. $21.46 03/20/2024 Food and Beverage Undisputed 01/23/2026 1151538157 CMS
Teva Pharmaceuticals USA, Inc. $43.14 04/16/2024 Food and Beverage Undisputed 01/23/2026 1151538183 CMS
Teva Pharmaceuticals USA, Inc. $21.35 06/10/2024 Food and Beverage Undisputed 01/23/2026 1151538225 CMS
Teva Pharmaceuticals USA, Inc. $21.97 08/05/2024 Food and Beverage Undisputed 01/23/2026 1151538253 CMS
Teva Pharmaceuticals USA, Inc. $54.72 09/29/2024 Food and Beverage Undisputed 01/23/2026 1151538285 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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