Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Covered recipient · General Payments record

GREGORY L SHANNON

Allopathic & Osteopathic Physicians Internal Medicine Gastroenterology

NPI
1730148495
CMS profile
1292133
Location
SUGAR LAND, TX

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

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General Payments · PY2022 · Entire year

$1,019.21

48 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

Other CMS categories — not shown on this page

Research Payments

CMS also publishes Research Payments as a separate dataset. This site does not currently mirror it, and no research figure is shown on this page. This provider appears in that dataset.

“If you are a physician who served as a principal investigator on a research study, you may see the payments associated with that research study listed under your name. This does not necessarily mean the payments are attributed to you. The dollar amount of the record corresponds to the total payment; the amounts are not attributed to each individual on the record.”

— Centers for Medicare & Medicaid Services, Open Payments Frequently Asked Questions, FAQ #12224

These records are published by CMS and can be viewed on this provider’s official CMS record. View this provider on CMS Open Payments ↗

“Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.”

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. 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.
  • Methodology & Data — sourcing, labeling, and limitations.

Provider summaries generated . CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

By nature of payment

PY2022 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,019.21 48

By paying entity

PY2022 · entire year · sorted by reported total

Payment records · PY2022

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

General Payments · PY2022 · Physicians and non-physician practitioners · CMS publication 2026-06-30

48 matching records · $1,019.21 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 48 matching records (CSV)

CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.

Showing records 1–48 of 48.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Salix Pharmaceuticals, a division of Bausch Health US, LLC $19.2612/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026959401671 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $17.9012/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026959723379 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $22.7411/30/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026959889559 CMS
Takeda Pharmaceuticals U.S.A., Inc. $37.6711/16/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026955821545 CMS
Ironwood Pharmaceuticals, Inc $14.6411/11/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026957916471 CMS
Celgene Corporation $21.1311/10/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026932761339 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $16.9811/09/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026959578527 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $23.1210/26/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026959901015 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $14.0510/05/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026959930053 CMS
ABBVIE INC. $18.0909/29/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026891576609 CMS
Medtronic, Inc. $147.5409/20/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026923331583 CMS
Takeda Pharmaceuticals U.S.A., Inc. $29.4109/17/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026955821541 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $18.1109/11/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026959769617 CMS
Takeda Pharmaceuticals U.S.A., Inc. $19.3708/29/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026955821537 CMS
Merck Sharp & Dohme LLC $23.7708/25/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026944640341 CMS
Celgene Corporation $13.8308/04/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026932761279 CMS
ABBVIE INC. $28.9407/25/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026891576607 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $10.5407/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026959500977 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $5.2507/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026959795045 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $19.6107/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026959690351 CMS
Nestle HealthCare Nutrition Inc. $23.5007/15/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026902797037 CMS
Ferring Pharmaceuticals Inc. $11.8607/08/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026875361745 CMS
Merck Sharp & Dohme LLC $23.3606/28/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026944646315 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $19.1106/15/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026959792231 CMS
Celgene Corporation $20.0006/09/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026932761263 CMS
Nestle HealthCare Nutrition Inc. $22.9405/26/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026902797035 CMS
Ironwood Pharmaceuticals, Inc $15.2405/17/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026957922531 CMS
Ferring Pharmaceuticals Inc. $17.9705/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026875361743 CMS
Janssen Biotech, Inc. $24.7304/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026886667725 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $19.7004/20/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026959538385 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $13.8604/20/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026959780621 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $1.0504/20/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026959875157 CMS
Merck Sharp & Dohme LLC $23.1804/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026944635421 CMS
Celgene Corporation $15.8104/14/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026932761225 CMS
Ironwood Pharmaceuticals, Inc $12.5104/08/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026957907169 CMS
RedHill Biopharma Inc. $21.6404/07/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026902953087 CMS
Merck Sharp & Dohme LLC $17.5303/28/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026944644859 CMS
Ironwood Pharmaceuticals, Inc $19.1703/23/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026957926649 CMS
Ardelyx, Inc. $14.3503/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026925731925 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $9.3703/16/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026960021595 CMS
Nestle HealthCare Nutrition Inc. $19.9903/11/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026902797033 CMS
ABBVIE INC. $21.3903/10/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026891576605 CMS
Ironwood Pharmaceuticals, Inc $14.8502/23/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026957911065 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $14.8002/23/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026959418171 CMS
Nestle HealthCare Nutrition Inc. $19.7902/04/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026902797031 CMS
Celgene Corporation $16.6102/03/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026932761213 CMS
RedHill Biopharma Inc. $24.8201/27/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026902945959 CMS
Ironwood Pharmaceuticals, Inc $18.1301/22/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026957924657 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
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
PY2025 $989.04 45

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files and profile matching
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.

Cite this record.

Plain
GREGORY L SHANNON, NPI 1730148495. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1730148495.
APA 7
IndustryPayments. (2026). GREGORY L SHANNON, NPI 1730148495 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1730148495
Bluebook
GREGORY L SHANNON, NPI 1730148495, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1730148495.

Source: Centers for Medicare & Medicaid Services, Open Payments.