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

HASSAN HATOUM

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1902137540
CMS profile
2780854
Location
OKLAHOMA CITY, OK

General Payments · PY2018–2024

$14,735.21

  • Reported across 70 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$611.33

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
Food and Beverage $578.87 18
Education $32.46 2

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $843.31 6
PY2019 $5,714.01 10
PY2020 $6,748.36 5
PY2022 $443.49 14
PY2023 $374.71 15
PY2024 $611.33 20

Payment records · PY2024 (20)

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

Program year 2024 20182019202020222023 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
ARRAY BIOPHARMA INC $28.09 09/09/2024 Food and Beverage Undisputed 01/23/2026 1131370902 CMS
Astellas Pharma US Inc $23.03 11/25/2024 Food and Beverage Undisputed 01/23/2026 1139431514 CMS
AstraZeneca Pharmaceuticals LP $76.22 03/12/2024 Food and Beverage Undisputed 01/23/2026 1104361935 CMS
AstraZeneca Pharmaceuticals LP $25.29 09/11/2024 Food and Beverage Undisputed 01/23/2026 1105249140 CMS
Bayer Healthcare Pharmaceuticals Inc. $26.16 09/23/2024 Food and Beverage Undisputed 01/23/2026 1086192872 CMS
E.R. Squibb & Sons, L.L.C. $22.13 03/27/2024 Food and Beverage Undisputed 01/23/2026 1101345855 CMS
E.R. Squibb & Sons, L.L.C. $22.29 05/08/2024 Food and Beverage Undisputed 01/23/2026 1101345873 CMS
E.R. Squibb & Sons, L.L.C. $26.00 06/13/2024 Food and Beverage Undisputed 01/23/2026 1101345881 CMS
Ipsen Biopharmaceuticals, Inc $16.23 01/03/2024 Education Undisputed 01/23/2026 1091963671 CMS
Ipsen Biopharmaceuticals, Inc $16.23 05/16/2024 Education Undisputed 01/23/2026 1091963673 CMS
Ipsen Biopharmaceuticals, Inc $119.81 11/23/2024 Food and Beverage Undisputed 01/23/2026 1091963675 CMS
Merck Sharp & Dohme LLC $30.86 05/23/2024 Food and Beverage Undisputed 01/23/2026 1141895719 CMS
Merck Sharp & Dohme LLC $25.43 09/12/2024 Food and Beverage Undisputed 01/23/2026 1141778415 CMS
Merck Sharp & Dohme LLC $12.74 09/25/2024 Food and Beverage Undisputed 01/23/2026 1141778413 CMS
Novartis Pharmaceuticals Corporation $14.45 02/01/2024 Food and Beverage Undisputed 01/23/2026 1086919301 CMS
Novartis Pharmaceuticals Corporation $28.57 03/11/2024 Food and Beverage Undisputed 01/23/2026 1086919305 CMS
Novartis Pharmaceuticals Corporation $29.71 06/05/2024 Food and Beverage Undisputed 01/23/2026 1086919331 CMS
Novartis Pharmaceuticals Corporation $29.34 07/15/2024 Food and Beverage Undisputed 01/23/2026 1086919327 CMS
Novartis Pharmaceuticals Corporation $21.67 10/14/2024 Food and Beverage Undisputed 01/23/2026 1086919337 CMS
TerSera Therapeutics LLC $17.08 02/19/2024 Food and Beverage Undisputed 01/23/2026 1144715391 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, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2020 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

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