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

CHANDAR SINGARAM

Allopathic & Osteopathic Physicians Internal Medicine Gastroenterology

NPI
1235183807
CMS profile
328665
Location
SIOUX FALLS, SD

General Payments · PY2018–2024

$208,350.41

  • Reported across 529 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$5,275.91

82 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 SD All categories

By nature of payment

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $2,959.91 80
Consulting Fee $2,316.00 2

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
GENZYME CORPORATION $1,767.27 2
Celgene Corporation $833.39 9
ABBVIE INC. $532.05 14
Phathom Pharmaceuticals, Inc. $524.26 15
AIMMUNE THERAPEUTICS, INC. $385.91 5
Ardelyx, Inc. $339.35 8
Takeda Pharmaceuticals U.S.A., Inc. $333.96 8
Gilead Sciences, Inc. $149.48 2
Salix Pharmaceuticals, a division of Bausch Health US, LLC $139.16 8
QOL Medical, LLC $104.17 4
Lilly USA, LLC $65.21 3
Regeneron Healthcare Solutions, Inc. $33.58 1
Ipsen Biopharmaceuticals, Inc $32.96 1
PFIZER INC. $20.06 1
SANOFI-AVENTIS U.S. LLC $15.10 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $85,654.17 121
PY2019 $22,761.40 80
PY2020 $20,877.79 44
PY2021 $42,301.91 80
PY2022 $19,725.56 66
PY2023 $11,753.67 56
PY2024 $5,275.91 82

Payment records · PY2024 (82)

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. $18.53 02/08/2024 Food and Beverage Undisputed 01/23/2026 1106108155 CMS
ABBVIE INC. $121.13 05/09/2024 Food and Beverage Undisputed 01/23/2026 1106108157 CMS
ABBVIE INC. $28.94 05/22/2024 Food and Beverage Undisputed 01/23/2026 1106108159 CMS
ABBVIE INC. $124.39 05/28/2024 Food and Beverage Undisputed 01/23/2026 1106108161 CMS
ABBVIE INC. $7.46 06/14/2024 Food and Beverage Undisputed 01/23/2026 1106108163 CMS
ABBVIE INC. $86.54 06/24/2024 Food and Beverage Undisputed 01/23/2026 1106108165 CMS
ABBVIE INC. $8.45 06/25/2024 Food and Beverage Undisputed 01/23/2026 1106108167 CMS
ABBVIE INC. $26.21 07/24/2024 Food and Beverage Undisputed 01/23/2026 1106108170 CMS
ABBVIE INC. $23.28 08/07/2024 Food and Beverage Undisputed 01/23/2026 1106108172 CMS
ABBVIE INC. $25.03 09/10/2024 Food and Beverage Undisputed 01/23/2026 1106108174 CMS
ABBVIE INC. $7.75 10/18/2024 Food and Beverage Undisputed 01/23/2026 1106108176 CMS
ABBVIE INC. $24.28 11/05/2024 Food and Beverage Undisputed 01/23/2026 1106108178 CMS
ABBVIE INC. $19.27 11/13/2024 Food and Beverage Undisputed 01/23/2026 1106108180 CMS
ABBVIE INC. $10.79 12/10/2024 Food and Beverage Undisputed 01/23/2026 1106108182 CMS
AIMMUNE THERAPEUTICS, INC. $184.83 02/13/2024 Food and Beverage Undisputed 01/23/2026 1147018540 CMS
AIMMUNE THERAPEUTICS, INC. $72.59 07/16/2024 Food and Beverage Undisputed 01/23/2026 1146983085 CMS
AIMMUNE THERAPEUTICS, INC. $71.30 08/01/2024 Food and Beverage Undisputed 01/23/2026 1146983081 CMS
AIMMUNE THERAPEUTICS, INC. $43.11 10/17/2024 Food and Beverage Undisputed 01/23/2026 1147008139 CMS
AIMMUNE THERAPEUTICS, INC. $14.08 10/17/2024 Food and Beverage Undisputed 01/23/2026 1147008141 CMS
Ardelyx, Inc. $24.03 04/22/2024 Food and Beverage Undisputed 01/23/2026 1146708301 CMS
Ardelyx, Inc. $32.07 05/29/2024 Food and Beverage Undisputed 01/23/2026 1146708303 CMS
Ardelyx, Inc. $25.18 07/09/2024 Food and Beverage Undisputed 01/23/2026 1146708305 CMS
Ardelyx, Inc. $118.45 08/28/2024 Food and Beverage Undisputed 01/23/2026 1146708307 CMS
Ardelyx, Inc. $32.48 08/28/2024 Food and Beverage Undisputed 01/23/2026 1146708309 CMS
Ardelyx, Inc. $26.94 09/25/2024 Food and Beverage Undisputed 01/23/2026 1146708311 CMS
Ardelyx, Inc. $22.31 10/30/2024 Food and Beverage Undisputed 01/23/2026 1146708313 CMS
Ardelyx, Inc. $57.89 11/14/2024 Food and Beverage Undisputed 01/23/2026 1146708315 CMS
Celgene Corporation $17.34 02/29/2024 Food and Beverage Undisputed 01/23/2026 1101152853 CMS
Celgene Corporation $15.27 03/21/2024 Food and Beverage Undisputed 01/23/2026 1101152855 CMS
Celgene Corporation $600.00 04/11/2024 Consulting Fee Undisputed 01/23/2026 1101152881 CMS
Celgene Corporation $18.22 04/17/2024 Food and Beverage Undisputed 01/23/2026 1101152859 CMS
Celgene Corporation $10.35 05/14/2024 Food and Beverage Undisputed 01/23/2026 1101152863 CMS
Celgene Corporation $23.06 06/12/2024 Food and Beverage Undisputed 01/23/2026 1101152867 CMS
Celgene Corporation $56.94 06/28/2024 Food and Beverage Undisputed 01/23/2026 1101152873 CMS
Celgene Corporation $75.57 07/11/2024 Food and Beverage Undisputed 01/23/2026 1101152871 CMS
Celgene Corporation $16.64 09/18/2024 Food and Beverage Undisputed 01/23/2026 1101152877 CMS
GENZYME CORPORATION $1,716.00 03/14/2024 Consulting Fee Undisputed 01/23/2026 1139800124 CMS
GENZYME CORPORATION $51.27 10/23/2024 Food and Beverage Undisputed 01/23/2026 1139800194 CMS
Gilead Sciences, Inc. $29.00 04/24/2024 Food and Beverage Undisputed 01/23/2026 1133783665 CMS
Gilead Sciences, Inc. $120.48 04/25/2024 Food and Beverage Undisputed 01/23/2026 1133783667 CMS
Ipsen Biopharmaceuticals, Inc $32.96 06/19/2024 Food and Beverage Undisputed 01/23/2026 1091982671 CMS
Lilly USA, LLC $18.46 08/14/2024 Food and Beverage Undisputed 01/23/2026 1136092392 CMS
Lilly USA, LLC $18.92 10/09/2024 Food and Beverage Undisputed 01/23/2026 1136094511 CMS
Lilly USA, LLC $27.83 12/11/2024 Food and Beverage Undisputed 01/23/2026 1136100672 CMS
PFIZER INC. $20.06 06/05/2024 Food and Beverage Undisputed 01/23/2026 1131610521 CMS
Phathom Pharmaceuticals, Inc. $19.67 03/08/2024 Food and Beverage Undisputed 01/23/2026 1151126651 CMS
Phathom Pharmaceuticals, Inc. $20.24 03/21/2024 Food and Beverage Undisputed 01/23/2026 1151126653 CMS
Phathom Pharmaceuticals, Inc. $25.07 04/09/2024 Food and Beverage Undisputed 01/23/2026 1151126655 CMS
Phathom Pharmaceuticals, Inc. $27.95 05/05/2024 Food and Beverage Undisputed 01/23/2026 1151126657 CMS
Phathom Pharmaceuticals, Inc. $29.69 05/06/2024 Food and Beverage Undisputed 01/23/2026 1151126659 CMS
Phathom Pharmaceuticals, Inc. $124.14 05/16/2024 Food and Beverage Undisputed 01/23/2026 1151126661 CMS
Phathom Pharmaceuticals, Inc. $25.80 05/23/2024 Food and Beverage Undisputed 01/23/2026 1151126663 CMS
Phathom Pharmaceuticals, Inc. $15.56 06/04/2024 Food and Beverage Undisputed 01/23/2026 1151126665 CMS
Phathom Pharmaceuticals, Inc. $24.36 06/26/2024 Food and Beverage Undisputed 01/23/2026 1151126667 CMS
Phathom Pharmaceuticals, Inc. $19.28 07/02/2024 Food and Beverage Undisputed 01/23/2026 1151126669 CMS
Phathom Pharmaceuticals, Inc. $27.42 08/21/2024 Food and Beverage Undisputed 01/23/2026 1151126671 CMS
Phathom Pharmaceuticals, Inc. $11.23 09/03/2024 Food and Beverage Undisputed 01/23/2026 1151126673 CMS
Phathom Pharmaceuticals, Inc. $18.55 11/27/2024 Food and Beverage Undisputed 01/23/2026 1151126675 CMS
Phathom Pharmaceuticals, Inc. $123.30 12/12/2024 Food and Beverage Undisputed 01/23/2026 1151126677 CMS
Phathom Pharmaceuticals, Inc. $12.00 12/21/2024 Food and Beverage Undisputed 01/23/2026 1151126679 CMS
QOL Medical, LLC $20.06 02/21/2024 Food and Beverage Undisputed 01/23/2026 1147716145 CMS
QOL Medical, LLC $27.15 05/01/2024 Food and Beverage Undisputed 01/23/2026 1147716147 CMS
QOL Medical, LLC $29.51 07/17/2024 Food and Beverage Undisputed 01/23/2026 1147716149 CMS
QOL Medical, LLC $27.45 11/20/2024 Food and Beverage Undisputed 01/23/2026 1147716151 CMS
Regeneron Healthcare Solutions, Inc. $33.58 05/08/2024 Food and Beverage Undisputed 01/23/2026 1114174825 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $18.30 05/01/2024 Food and Beverage Undisputed 01/23/2026 1153744395 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $19.15 05/07/2024 Food and Beverage Undisputed 01/23/2026 1153696351 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $14.97 07/17/2024 Food and Beverage Undisputed 01/23/2026 1153486077 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $17.41 08/21/2024 Food and Beverage Undisputed 01/23/2026 1153505411 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $17.50 08/28/2024 Food and Beverage Undisputed 01/23/2026 1153496810 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $13.15 10/24/2024 Food and Beverage Undisputed 01/23/2026 1153592477 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $20.69 10/31/2024 Food and Beverage Undisputed 01/23/2026 1153588420 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $17.99 12/23/2024 Food and Beverage Undisputed 01/23/2026 1153716068 CMS
SANOFI-AVENTIS U.S. LLC $15.10 05/29/2024 Food and Beverage Undisputed 01/23/2026 1139800184 CMS
Takeda Pharmaceuticals U.S.A., Inc. $25.88 01/30/2024 Food and Beverage Undisputed 01/23/2026 1137676963 CMS
Takeda Pharmaceuticals U.S.A., Inc. $98.34 02/07/2024 Food and Beverage Undisputed 01/23/2026 1137676965 CMS
Takeda Pharmaceuticals U.S.A., Inc. $29.75 03/13/2024 Food and Beverage Undisputed 01/23/2026 1137676967 CMS
Takeda Pharmaceuticals U.S.A., Inc. $31.76 04/03/2024 Food and Beverage Undisputed 01/23/2026 1137676969 CMS
Takeda Pharmaceuticals U.S.A., Inc. $26.18 05/15/2024 Food and Beverage Undisputed 01/23/2026 1137676971 CMS
Takeda Pharmaceuticals U.S.A., Inc. $34.12 07/03/2024 Food and Beverage Undisputed 01/23/2026 1137676973 CMS
Takeda Pharmaceuticals U.S.A., Inc. $59.89 07/24/2024 Food and Beverage Undisputed 01/23/2026 1137676975 CMS
Takeda Pharmaceuticals U.S.A., Inc. $28.04 10/23/2024 Food and Beverage Undisputed 01/23/2026 1137676977 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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