IndustryPayments
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

CHRISTOPHER CHUM

Allopathic & Osteopathic Physicians Internal Medicine Gastroenterology

NPI
1144669532
CMS profile
5703201
Location
BROOKLYN, NY

General Payments · PY2018–2024

$4,700.68

  • Reported across 98 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$2,853.94

55 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.

Related groups: Gastroenterology NY All categories

By nature of payment

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Travel and Lodging $1,946.00 12
Food and Beverage $907.94 43

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Olympus Corporation of the Americas $881.16 14
BOSTON SCIENTIFIC CORPORATION $792.72 11
Ovesco Endoscopy USA, Inc. $561.31 1
ABBVIE INC. $136.03 9
Cook Medical LLC $112.28 1
Gilead Sciences, Inc. $73.32 3
Ardelyx, Inc. $60.03 3
IRONWOOD PHARMACEUTICALS, INC $58.20 3
Lilly USA, LLC $38.27 2
AIMMUNE THERAPEUTICS, INC. $28.01 2
GENZYME CORPORATION $21.80 1
Takeda Pharmaceuticals U.S.A., Inc. $20.87 1
Salix Pharmaceuticals, a division of Bausch Health US, LLC $19.00 1
Madrigal Pharmaceuticals $18.66 1
Merck Sharp & Dohme Corporation $16.15 1
Celgene Corporation $16.13 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $291.27 4
PY2019 $222.30 6
PY2020 $270.36 11
PY2021 $152.29 9
PY2022 $112.54 6
PY2023 $797.98 7
PY2024 $2,853.94 55

Payment records · PY2024 (55)

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
ABBVIE INC. $16.11 08/19/2024 Food and Beverage Undisputed 01/23/2026 1103471953 CMS
ABBVIE INC. $15.48 09/16/2024 Food and Beverage Undisputed 01/23/2026 1103471955 CMS
ABBVIE INC. $17.38 09/17/2024 Food and Beverage Undisputed 01/23/2026 1103471957 CMS
ABBVIE INC. $3.35 09/20/2024 Food and Beverage Undisputed 01/23/2026 1103471959 CMS
ABBVIE INC. $17.73 10/04/2024 Food and Beverage Undisputed 01/23/2026 1103471961 CMS
ABBVIE INC. $17.25 10/23/2024 Food and Beverage Undisputed 01/23/2026 1103471963 CMS
ABBVIE INC. $16.83 10/31/2024 Food and Beverage Undisputed 01/23/2026 1103471965 CMS
ABBVIE INC. $16.00 11/15/2024 Food and Beverage Undisputed 01/23/2026 1103471967 CMS
ABBVIE INC. $15.90 12/20/2024 Food and Beverage Undisputed 01/23/2026 1103471969 CMS
AIMMUNE THERAPEUTICS, INC. $13.72 08/05/2024 Food and Beverage Undisputed 01/23/2026 1147009160 CMS
AIMMUNE THERAPEUTICS, INC. $14.29 11/06/2024 Food and Beverage Undisputed 01/23/2026 1146964215 CMS
Ardelyx, Inc. $20.48 09/04/2024 Food and Beverage Undisputed 01/23/2026 1146675838 CMS
Ardelyx, Inc. $21.34 10/23/2024 Food and Beverage Undisputed 01/23/2026 1146675840 CMS
Ardelyx, Inc. $18.21 11/01/2024 Food and Beverage Undisputed 01/23/2026 1146675842 CMS
Boston Scientific Corporation $26.76 02/16/2024 Food and Beverage Undisputed 01/23/2026 1092285425 CMS
Boston Scientific Corporation $116.03 02/16/2024 Travel and Lodging Undisputed 01/23/2026 1092285433 CMS
Boston Scientific Corporation $110.19 02/17/2024 Travel and Lodging Undisputed 01/23/2026 1092285431 CMS
Boston Scientific Corporation $370.61 02/17/2024 Travel and Lodging Undisputed 01/23/2026 1092285435 CMS
Boston Scientific Corporation $34.41 02/18/2024 Food and Beverage Undisputed 01/23/2026 1092285427 CMS
Boston Scientific Corporation $6.50 04/03/2024 Food and Beverage Undisputed 01/23/2026 1092285417 CMS
Boston Scientific Corporation $18.12 06/26/2024 Food and Beverage Undisputed 01/23/2026 1092285419 CMS
Boston Scientific Corporation $23.22 06/29/2024 Food and Beverage Undisputed 01/23/2026 1092285423 CMS
Boston Scientific Corporation $65.21 06/29/2024 Travel and Lodging Undisputed 01/23/2026 1092285429 CMS
Boston Scientific Corporation $2.50 08/27/2024 Food and Beverage Undisputed 01/23/2026 1092285415 CMS
Boston Scientific Corporation $19.17 11/25/2024 Food and Beverage Undisputed 01/23/2026 1092285421 CMS
Celgene Corporation $16.13 09/11/2024 Food and Beverage Undisputed 01/23/2026 1101174990 CMS
Cook Medical LLC $112.28 06/18/2024 Food and Beverage Undisputed 01/23/2026 1118331139 CMS
GENZYME CORPORATION $21.80 10/24/2024 Food and Beverage Undisputed 01/23/2026 1139908879 CMS
Gilead Sciences, Inc. $29.22 01/17/2024 Food and Beverage Undisputed 01/23/2026 1133639652 CMS
Gilead Sciences, Inc. $30.62 05/29/2024 Food and Beverage Undisputed 01/23/2026 1133639654 CMS
Gilead Sciences, Inc. $13.48 11/07/2024 Food and Beverage Undisputed 01/23/2026 1133639656 CMS
IRONWOOD PHARMACEUTICALS, INC $18.64 08/12/2024 Food and Beverage Undisputed 01/23/2026 1153744988 CMS
IRONWOOD PHARMACEUTICALS, INC $18.33 09/09/2024 Food and Beverage Undisputed 01/23/2026 1153763105 CMS
IRONWOOD PHARMACEUTICALS, INC $21.23 11/11/2024 Food and Beverage Undisputed 01/23/2026 1153709813 CMS
Lilly USA, LLC $19.36 10/02/2024 Food and Beverage Undisputed 01/23/2026 1136098422 CMS
Lilly USA, LLC $18.91 12/18/2024 Food and Beverage Undisputed 01/23/2026 1136118281 CMS
Madrigal Pharmaceuticals $18.66 11/26/2024 Food and Beverage Undisputed 01/23/2026 1144163515 CMS
Merck Sharp & Dohme LLC $16.15 10/04/2024 Food and Beverage Undisputed 01/23/2026 1141689420 CMS
Olympus Corporation of the Americas $23.40 01/08/2024 Travel and Lodging Undisputed 01/23/2026 1110435127 CMS
Olympus Corporation of the Americas $60.93 01/10/2024 Food and Beverage Undisputed 01/23/2026 1110435129 CMS
Olympus Corporation of the Americas $10.16 01/10/2024 Food and Beverage Undisputed 01/23/2026 1110435131 CMS
Olympus Corporation of the Americas $35.00 01/22/2024 Travel and Lodging Undisputed 01/23/2026 1110435125 CMS
Olympus Corporation of the Americas $250.17 01/27/2024 Travel and Lodging Undisputed 01/23/2026 1110435123 CMS
Olympus Corporation of the Americas $1.38 02/01/2024 Food and Beverage Undisputed 01/23/2026 1110435133 CMS
Olympus Corporation of the Americas $1.53 02/02/2024 Food and Beverage Undisputed 01/23/2026 1110435137 CMS
Olympus Corporation of the Americas $24.46 02/03/2024 Food and Beverage Undisputed 01/23/2026 1110435141 CMS
Olympus Corporation of the Americas $160.60 02/04/2024 Travel and Lodging Undisputed 01/23/2026 1110435135 CMS
Olympus Corporation of the Americas $2.05 02/05/2024 Food and Beverage Undisputed 01/23/2026 1110435139 CMS
Olympus Corporation of the Americas $21.68 02/16/2024 Travel and Lodging Undisputed 01/23/2026 1110435117 CMS
Olympus Corporation of the Americas $21.82 02/16/2024 Travel and Lodging Undisputed 01/23/2026 1110435119 CMS
Olympus Corporation of the Americas $209.98 02/16/2024 Travel and Lodging Undisputed 01/23/2026 1110435121 CMS
Olympus Corporation of the Americas $58.00 03/07/2024 Food and Beverage Undisputed 01/23/2026 1110435115 CMS
Ovesco Endoscopy USA, Inc. $561.31 06/14/2024 Travel and Lodging Undisputed 01/23/2026 1154348194 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $19.00 12/18/2024 Food and Beverage Undisputed 01/23/2026 1153574874 CMS
Takeda Pharmaceuticals U.S.A., Inc. $20.87 10/10/2024 Food and Beverage Undisputed 01/23/2026 1137513155 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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