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

XENOS L MASON

Allopathic & Osteopathic Physicians Psychiatry & Neurology Neurology

NPI
1619358801
CMS profile
1354654
Location
LOS ANGELES, CA

General Payments · PY2019–2024

$41,754.34

  • Reported across 109 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$23,991.45

43 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

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Abbott Laboratories $11,420.34 27
Janssen Research & Development, LLC $11,263.44 12
BOSTON SCIENTIFIC CORPORATION $1,307.67 4

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $634.04 8
PY2020 $80.27 1
PY2021 $438.15 4
PY2022 $155.37 4
PY2023 $16,455.06 49
PY2024 $23,991.45 43

Payment records · PY2024 (43)

Sorted by paying entity, then date · as published by CMS

Program year 2024 20192020202120222023 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
Abbott Laboratories $194.95 03/07/2024 Travel and Lodging Undisputed 01/23/2026 1125422233 CMS
Abbott Laboratories $66.25 03/23/2024 Food and Beverage Undisputed 01/23/2026 1125154827 CMS
Abbott Laboratories $703.84 03/26/2024 Travel and Lodging Undisputed 01/23/2026 1125422235 CMS
Abbott Laboratories $18.89 04/11/2024 Food and Beverage Undisputed 01/23/2026 1125154821 CMS
Abbott Laboratories $58.03 04/11/2024 Travel and Lodging Undisputed 01/23/2026 1125422195 CMS
Abbott Laboratories $47.65 04/11/2024 Travel and Lodging Undisputed 01/23/2026 1125422197 CMS
Abbott Laboratories $393.75 04/11/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1125422199 CMS
Abbott Laboratories $945.00 04/11/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1125422201 CMS
Abbott Laboratories $472.50 04/11/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1125422203 CMS
Abbott Laboratories $2,205.00 04/11/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1125422205 CMS
Abbott Laboratories $551.25 04/11/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1125422207 CMS
Abbott Laboratories $555.47 04/22/2024 Travel and Lodging Undisputed 01/23/2026 1125422193 CMS
Abbott Laboratories $9.02 04/22/2024 Travel and Lodging Undisputed 01/23/2026 1125422237 CMS
Abbott Laboratories $28.60 08/06/2024 Food and Beverage Undisputed 01/23/2026 1125154825 CMS
Abbott Laboratories $75.03 08/06/2024 Travel and Lodging Undisputed 01/23/2026 1125422221 CMS
Abbott Laboratories $62.62 08/06/2024 Travel and Lodging Undisputed 01/23/2026 1125422223 CMS
Abbott Laboratories $945.00 08/06/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1125422225 CMS
Abbott Laboratories $472.50 08/06/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1125422227 CMS
Abbott Laboratories $2,205.00 08/06/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1125422229 CMS
Abbott Laboratories $472.50 08/06/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1125422231 CMS
Abbott Laboratories $59.39 09/10/2024 Food and Beverage Undisputed 01/23/2026 1125154823 CMS
Abbott Laboratories $78.67 09/10/2024 Travel and Lodging Undisputed 01/23/2026 1125422209 CMS
Abbott Laboratories $224.98 09/10/2024 Travel and Lodging Undisputed 01/23/2026 1125422211 CMS
Abbott Laboratories $172.92 09/10/2024 Travel and Lodging Undisputed 01/23/2026 1125422213 CMS
Abbott Laboratories $53.62 09/10/2024 Travel and Lodging Undisputed 01/23/2026 1125422215 CMS
Abbott Laboratories $222.45 09/10/2024 Travel and Lodging Undisputed 01/23/2026 1125422217 CMS
Abbott Laboratories $125.46 09/10/2024 Travel and Lodging Undisputed 01/23/2026 1125422219 CMS
Boston Scientific Corporation $37.67 01/30/2024 Food and Beverage Undisputed 01/23/2026 1092694225 CMS
Boston Scientific Corporation $410.00 05/03/2024 Consulting Fee Undisputed 01/23/2026 1092694227 CMS
Boston Scientific Corporation $450.00 06/27/2024 Consulting Fee Undisputed 01/23/2026 1092694231 CMS
Boston Scientific Corporation $410.00 09/26/2024 Consulting Fee Undisputed 01/23/2026 1092694229 CMS
Janssen Research & Development, LLC $1,542.35 06/14/2024 Consulting Fee Undisputed 01/23/2026 1077590069 CMS
Janssen Research & Development, LLC $746.65 07/01/2024 Consulting Fee Undisputed 01/23/2026 1077590067 CMS
Janssen Research & Development, LLC $1,373.40 08/02/2024 Consulting Fee Undisputed 01/23/2026 1077590071 CMS
Janssen Research & Development, LLC $58.69 11/21/2024 Travel and Lodging Undisputed 01/23/2026 1077587317 CMS
Janssen Research & Development, LLC $13.69 11/21/2024 Food and Beverage Undisputed 01/23/2026 1077587323 CMS
Janssen Research & Development, LLC $55.37 11/21/2024 Travel and Lodging Undisputed 01/23/2026 1077587325 CMS
Janssen Research & Development, LLC $45.00 11/21/2024 Food and Beverage Undisputed 01/23/2026 1077587329 CMS
Janssen Research & Development, LLC $6,750.00 11/21/2024 Consulting Fee Undisputed 01/23/2026 1077587343 CMS
Janssen Research & Development, LLC $18.27 11/21/2024 Food and Beverage Undisputed 01/23/2026 1077587349 CMS
Janssen Research & Development, LLC $63.91 11/21/2024 Travel and Lodging Undisputed 01/23/2026 1077587365 CMS
Janssen Research & Development, LLC $55.69 11/21/2024 Travel and Lodging Undisputed 01/23/2026 1077587369 CMS
Janssen Research & Development, LLC $540.42 11/22/2024 Travel and Lodging Undisputed 01/23/2026 1077587339 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
2019, 2020, 2021, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

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