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

GREGORY L SHANNON

Allopathic & Osteopathic Physicians Internal Medicine Gastroenterology

NPI
1730148495
CMS profile
1292133
Location
SUGAR LAND, TX

General Payments · PY2018–2024

$8,576.36

  • Reported across 478 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$1,329.82

63 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 TX All categories

By nature of payment

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,329.82 63

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
ABBVIE INC. $348.22 19
AIMMUNE THERAPEUTICS, INC. $197.12 8
IRONWOOD PHARMACEUTICALS, INC $159.75 10
Lilly USA, LLC $154.13 5
Takeda Pharmaceuticals U.S.A., Inc. $114.70 5
Salix Pharmaceuticals, a division of Bausch Health US, LLC $91.66 5
Celgene Corporation $66.96 3
EVOKE PHARMA, INC. $58.11 3
Ardelyx, Inc. $50.27 2
Phathom Pharmaceuticals, Inc. $36.23 1
Janssen Biotech, Inc. $26.36 1
Merck Sharp & Dohme Corporation $26.31 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $1,418.92 110
PY2019 $1,189.98 72
PY2020 $817.76 50
PY2021 $1,372.88 67
PY2022 $1,019.21 48
PY2023 $1,427.79 68
PY2024 $1,329.82 63

Payment records · PY2024 (63)

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. $19.23 01/18/2024 Food and Beverage Undisputed 01/23/2026 1106072748 CMS
ABBVIE INC. $17.47 01/29/2024 Food and Beverage Undisputed 01/23/2026 1106072750 CMS
ABBVIE INC. $6.48 03/08/2024 Food and Beverage Undisputed 01/23/2026 1106072752 CMS
ABBVIE INC. $20.93 03/09/2024 Food and Beverage Undisputed 01/23/2026 1106072754 CMS
ABBVIE INC. $6.29 03/20/2024 Food and Beverage Undisputed 01/23/2026 1106072756 CMS
ABBVIE INC. $6.27 04/08/2024 Food and Beverage Undisputed 01/23/2026 1106072758 CMS
ABBVIE INC. $13.11 04/11/2024 Food and Beverage Undisputed 01/23/2026 1106072760 CMS
ABBVIE INC. $27.66 04/28/2024 Food and Beverage Undisputed 01/23/2026 1106072762 CMS
ABBVIE INC. $18.64 07/15/2024 Food and Beverage Undisputed 01/23/2026 1106072764 CMS
ABBVIE INC. $20.78 07/17/2024 Food and Beverage Undisputed 01/23/2026 1106072766 CMS
ABBVIE INC. $23.82 07/23/2024 Food and Beverage Undisputed 01/23/2026 1106072768 CMS
ABBVIE INC. $11.20 08/13/2024 Food and Beverage Undisputed 01/23/2026 1106072770 CMS
ABBVIE INC. $34.04 09/05/2024 Food and Beverage Undisputed 01/23/2026 1106072772 CMS
ABBVIE INC. $11.84 09/16/2024 Food and Beverage Undisputed 01/23/2026 1106072774 CMS
ABBVIE INC. $29.38 10/17/2024 Food and Beverage Undisputed 01/23/2026 1106072776 CMS
ABBVIE INC. $21.09 10/21/2024 Food and Beverage Undisputed 01/23/2026 1106072778 CMS
ABBVIE INC. $18.06 10/31/2024 Food and Beverage Undisputed 01/23/2026 1106072780 CMS
ABBVIE INC. $28.28 11/05/2024 Food and Beverage Undisputed 01/23/2026 1106072782 CMS
ABBVIE INC. $13.65 12/11/2024 Food and Beverage Undisputed 01/23/2026 1106072784 CMS
AIMMUNE THERAPEUTICS, INC. $25.00 05/04/2024 Food and Beverage Undisputed 01/23/2026 1146960125 CMS
AIMMUNE THERAPEUTICS, INC. $25.00 05/04/2024 Food and Beverage Undisputed 01/23/2026 1146963485 CMS
AIMMUNE THERAPEUTICS, INC. $24.16 06/08/2024 Food and Beverage Undisputed 01/23/2026 1146959751 CMS
AIMMUNE THERAPEUTICS, INC. $24.34 07/19/2024 Food and Beverage Undisputed 01/23/2026 1146961186 CMS
AIMMUNE THERAPEUTICS, INC. $24.61 08/16/2024 Food and Beverage Undisputed 01/23/2026 1146961067 CMS
AIMMUNE THERAPEUTICS, INC. $24.96 09/20/2024 Food and Beverage Undisputed 01/23/2026 1146999734 CMS
AIMMUNE THERAPEUTICS, INC. $24.34 10/18/2024 Food and Beverage Undisputed 01/23/2026 1147006063 CMS
AIMMUNE THERAPEUTICS, INC. $24.71 12/06/2024 Food and Beverage Undisputed 01/23/2026 1147005539 CMS
Ardelyx, Inc. $19.48 02/29/2024 Food and Beverage Undisputed 01/23/2026 1146707314 CMS
Ardelyx, Inc. $30.79 05/10/2024 Food and Beverage Undisputed 01/23/2026 1146707316 CMS
Celgene Corporation $18.64 05/02/2024 Food and Beverage Undisputed 01/23/2026 1101142864 CMS
Celgene Corporation $26.82 08/07/2024 Food and Beverage Undisputed 01/23/2026 1101142868 CMS
Celgene Corporation $21.50 09/09/2024 Food and Beverage Undisputed 01/23/2026 1101142876 CMS
EVOKE PHARMA, INC. $17.93 02/02/2024 Food and Beverage Undisputed 01/23/2026 1127774567 CMS
EVOKE PHARMA, INC. $17.62 03/04/2024 Food and Beverage Undisputed 01/23/2026 1127775065 CMS
EVOKE PHARMA, INC. $22.56 06/05/2024 Food and Beverage Undisputed 01/23/2026 1127776799 CMS
IRONWOOD PHARMACEUTICALS, INC $16.91 02/28/2024 Food and Beverage Undisputed 01/23/2026 1153748325 CMS
IRONWOOD PHARMACEUTICALS, INC $16.33 03/27/2024 Food and Beverage Undisputed 01/23/2026 1153757308 CMS
IRONWOOD PHARMACEUTICALS, INC $18.40 04/24/2024 Food and Beverage Undisputed 01/23/2026 1153770234 CMS
IRONWOOD PHARMACEUTICALS, INC $15.52 05/22/2024 Food and Beverage Undisputed 01/23/2026 1153757312 CMS
IRONWOOD PHARMACEUTICALS, INC $13.48 07/11/2024 Food and Beverage Undisputed 01/23/2026 1153765567 CMS
IRONWOOD PHARMACEUTICALS, INC $23.50 08/15/2024 Food and Beverage Undisputed 01/23/2026 1153730535 CMS
IRONWOOD PHARMACEUTICALS, INC $17.51 09/19/2024 Food and Beverage Undisputed 01/23/2026 1153722007 CMS
IRONWOOD PHARMACEUTICALS, INC $14.51 10/19/2024 Food and Beverage Undisputed 01/23/2026 1153722003 CMS
IRONWOOD PHARMACEUTICALS, INC $10.76 11/16/2024 Food and Beverage Undisputed 01/23/2026 1153730539 CMS
IRONWOOD PHARMACEUTICALS, INC $12.83 12/11/2024 Food and Beverage Undisputed 01/23/2026 1153765569 CMS
Janssen Biotech, Inc. $26.36 05/30/2024 Food and Beverage Undisputed 01/23/2026 1078771405 CMS
Lilly USA, LLC $26.86 02/15/2024 Food and Beverage Undisputed 01/23/2026 1134991262 CMS
Lilly USA, LLC $34.33 05/24/2024 Food and Beverage Undisputed 01/23/2026 1134979082 CMS
Lilly USA, LLC $33.47 08/08/2024 Food and Beverage Undisputed 01/23/2026 1134979084 CMS
Lilly USA, LLC $29.72 10/10/2024 Food and Beverage Undisputed 01/23/2026 1135008431 CMS
Lilly USA, LLC $29.75 11/07/2024 Food and Beverage Undisputed 01/23/2026 1135008631 CMS
Merck Sharp & Dohme LLC $26.31 04/02/2024 Food and Beverage Undisputed 01/23/2026 1141658146 CMS
Phathom Pharmaceuticals, Inc. $36.23 04/15/2024 Food and Beverage Undisputed 01/23/2026 1151124546 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $21.24 01/11/2024 Food and Beverage Undisputed 01/23/2026 1153733469 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $19.87 03/27/2024 Food and Beverage Undisputed 01/23/2026 1153486761 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $16.51 09/24/2024 Food and Beverage Undisputed 01/23/2026 1153430473 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $16.08 10/16/2024 Food and Beverage Undisputed 01/23/2026 1153547035 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $17.96 12/04/2024 Food and Beverage Undisputed 01/23/2026 1153743367 CMS
Takeda Pharmaceuticals U.S.A., Inc. $23.26 02/08/2024 Food and Beverage Undisputed 01/23/2026 1137673601 CMS
Takeda Pharmaceuticals U.S.A., Inc. $24.08 06/17/2024 Food and Beverage Undisputed 01/23/2026 1137673603 CMS
Takeda Pharmaceuticals U.S.A., Inc. $13.85 06/25/2024 Food and Beverage Undisputed 01/23/2026 1137673605 CMS
Takeda Pharmaceuticals U.S.A., Inc. $30.65 10/07/2024 Food and Beverage Undisputed 01/23/2026 1137673607 CMS
Takeda Pharmaceuticals U.S.A., Inc. $22.86 10/31/2024 Food and Beverage Undisputed 01/23/2026 1137673609 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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