IRONWOOD PHARMACEUTICALS, INC

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

Centers for Medicare & Medicaid Services, Open Payments

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.

Figures reflect General Payments this manufacturer or GPO reported to CMS. Research and Ownership/Investment payments are separate datasets and are not included here.

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.

Page 1 of 183; records 1–50 of 9138 matching records. This page contains 50 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

IRONWOOD PHARMACEUTICALS, INC

CMS reporting company ID 100000000245

General Payments, PY2019; Recipient scope: All recipient types; Nature of payment: All payment types

Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00

Page 1 of 183; records 1–50 of 9138 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/company/100000000245?year=2019&recipient=all#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e

Cite these filtered records

The citation includes this program year, filters, data edition, and page of results.

Plain
IRONWOOD PHARMACEUTICALS, INC, CMS reporting company ID 100000000245. General Payments, PY2019; Recipient scope: All recipient types; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 183; records 1–50 of 9138 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/company/100000000245?year=2019&recipient=all#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
APA 7
IndustryPayments. (2026). IRONWOOD PHARMACEUTICALS, INC, CMS reporting company ID 100000000245. General Payments, PY2019; Recipient scope: All recipient types; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 183; records 1–50 of 9138 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/company/100000000245?year=2019&recipient=all#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
Bluebook
IRONWOOD PHARMACEUTICALS, INC, CMS reporting company ID 100000000245, IndustryPayments, General Payments, PY2019; Recipient scope: All recipient types; Nature of payment: All payment types (Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00). Page 1 of 183; records 1–50 of 9138 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e. https://industrypayments.org/company/100000000245?year=2019&recipient=all#records-h.

Centers for Medicare & Medicaid Services, Open Payments

Citation formats are provided for reference; check the requirements of your publication.

Payment records · PY2019

Date, newest first, then reporting company; values as published by CMS.

General Payments · PY2019 · All recipient types · CMS publication 2026-06-30

9,138 matching records · $497,042.63 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 9,138 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 1–50 of 9,138.

Recipient Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
RAYNARD J CHEUNG
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $11.5312/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709211803 CMS
MATTHEW S COHEN
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $11.5312/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709213913 CMS
CHRISTINA CHOU
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $8.6412/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709207617 CMS
MIMI LIN
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $8.6412/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709208149 CMS
HENRY W SHOENTHAL
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $13.8912/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709216417 CMS
ALVARO CASTILLEJO
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $16.1312/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709216653 CMS
XI NA
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $16.2812/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709217235 CMS
MATTHEW WAYNE HILLEGASS
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $13.8912/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709222419 CMS
WILLIAM ANTHONY MESSER
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $12.5912/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709224157 CMS
BRIAN S SMITH
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $16.1312/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709224221 CMS
STEPHEN T WALKER
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $16.1312/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709224837 CMS
MITUL T PATEL
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $13.8912/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709225085 CMS
GLENN D ROSEN
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $11.7312/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709209891 CMS
LORRAINE M MCRAE
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $18.0012/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709209947 CMS
CATHERINE E LINDSAY
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $18.0312/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709210049 CMS
CHARLES RUST
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $18.0312/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709210211 CMS
DANIEL A SCHWARTZ
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $11.7312/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709210335 CMS
LAWRENCE F ZOTTOLI
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $18.0012/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709210501 CMS
ROGER M ORTH
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $16.4212/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709211079 CMS
VICTOR LYAPIS
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $12.4112/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709212207 CMS
SANJEEV P RAO
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $16.0912/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709215691 CMS
GEORGE A DENDRINOS
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $12.4812/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709216087 CMS
GRANT T WHITTAKER
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $18.8112/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709216919 CMS
ANN CELESTE M DIMAYA
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $11.8512/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709218925 CMS
NADEEM AHMED BAIG
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $14.0412/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709223057 CMS
LALEH A MERIKHI
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $14.0412/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709223163 CMS
JEREMY E HAMPTON
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $12.1512/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709223861 CMS
DAVID E VICKERY
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $12.1512/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709224027 CMS
CATHERINE S MANOLAKIS
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $18.8112/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709224455 CMS
IJAZ AHMAD
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $18.1312/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709224741 CMS
ELIE S AOUN
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $124.9912/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709208063 CMS
LARRY EDWARD CLARK
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $22.1912/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709208225 CMS
TRENT A SCHUENEMAN
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $13.3012/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709209817 CMS
JOHN A LIMBURG
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $13.3012/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709209845 CMS
MATTHEW C HALEY
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $12.6112/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709210349 CMS
NEIL M COHEN
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $14.8612/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709210755 CMS
JOHNNY ALTAWIL
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $11.7112/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709211469 CMS
ERIC A POLLACK
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $22.1912/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709211787 CMS
RAJESH K PATEL
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $12.9012/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709212753 CMS
SCOTT LOUIS WILHOITE
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $11.7112/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709213017 CMS
HOWARD GOLDBERG
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $22.1912/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709213367 CMS
MICHAEL W BROWN
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $12.9012/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709213385 CMS
MEREDITH CORLEW ROATH
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $12.9012/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709214193 CMS
JEFFREY S GILBERT
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $11.7112/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709214633 CMS
CHAD B MANUEL
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $92.3212/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709216031 CMS
GEORGE BOLEN
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $22.1912/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709217387 CMS
RODERICK NISI
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $15.3912/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709217689 CMS
KEIKHOSROW GHAZANFARI
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $13.9612/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709217783 CMS
ARTURO OLIVERA
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $13.9612/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709218211 CMS
PARAG LODHAVIA
Physician / non-physician practitioner
Ironwood Pharmaceuticals, Inc $13.0412/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709218765 CMS

Practitioner overview · all loaded program years

21,094 providers listed 93,286 records General Payments

General Payments to practitioners — all loaded program years

  • Category: General Payments
  • Program years: 2019, 2020, 2021, 2022, 2023, 2024, 2025
  • Record count: 93,286
  • Providers listed: 21,094

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

Figures reflect General Payments this manufacturer or GPO reported to CMS. Research and Ownership/Investment payments are separate datasets and are not included here.

Coverage: program years 2019–2025, General Payments only, reported to physicians and non-physician practitioners. Payments to teaching hospitals are not included in these practitioner figures. Each figure is labeled with its category and program year; categories are never combined.

Practitioner payments by program year

Program yearReportedRecordsProvidersDetail
PY2019 $497,042.63 9,138 5,604 This company in PY2019 →
PY2020 $312,927.32 14,160 6,268 This company in PY2020 →
PY2021 $325,893.15 16,453 6,862 This company in PY2021 →
PY2022 $547,423.28 16,004 6,875 This company in PY2022 →
PY2023 $621,247.74 18,204 7,589 This company in PY2023 →
PY2024 $654,411.66 18,074 7,952 This company in PY2024 →
PY2025 $89,839.08 1,253 1,208 This company in PY2025 →

By recipient specialty (136)

Sorted by name; identical names by identifier.

Allopathic & Osteopathic Physicians 96 specialties 14,300 providers
Dental Providers 3 specialties 8 providers
Eye and Vision Services Providers 1 specialty 3 providers
Nursing Service Providers 8 specialties 17 providers
Physician Assistants & Advanced Practice Nursing Providers 25 specialties 6,408 providers
Podiatric Medicine & Surgery Service Providers 3 specialties 12 providers

Providers listed (21,094)

Sorted by name; identical names by identifier.

ProviderSpecialtyStateRecords reported by this company
A FRANCES ADAMS Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant VA 1
A LAWRENCE ATTIA Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology NY 14
AAKASH AGGARWAL Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology NJ 3
AAKASHI D PATEL Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical GA 1
AALIA SAEED Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology MI 4
AAMER MIRZA Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology NY 2
AARATI B MALLIAH Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology PA 4
AARON A LINK Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology MN 1
AARON ALEXANDER WEISS — NY 1
AARON B GREENSPAN Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology MO 7
AARON D RICHMAN Allopathic & Osteopathic Physicians|Internal Medicine NY 1
AARON F MENDEZ Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical CA 1
AARON G ELLISON Allopathic & Osteopathic Physicians|Family Medicine|Sports Medicine NC 5
AARON G JANNETTI Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant NY 1
AARON G WESP Allopathic & Osteopathic Physicians|Internal Medicine TX 3
AARON I-LUN JENG Allopathic & Osteopathic Physicians|Internal Medicine CA 1
AARON JAMES PUGH Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology IN 11
AARON KYLE GOODWIN Allopathic & Osteopathic Physicians|Internal Medicine NC 1
AARON L KNOLL Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology OH 3
AARON L PEIMANN Allopathic & Osteopathic Physicians|Family Medicine IA 1
AARON L TRAVIS Allopathic & Osteopathic Physicians|Internal Medicine MO 4
AARON M BELLOWS Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology NJ 19
AARON M DICKSTEIN Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology MA 4
AARON M HOLDERMAN Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Acute Care IN 3
AARON M SLAIBY Allopathic & Osteopathic Physicians|Pediatrics CT 1
AARON P HOARD Physician Assistants & Advanced Practice Nursing Providers|Nurse Anesthetist, Certified Registered IN 1
AARON P MARTIN Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology PA 1
AARON PATRICK FIEKER Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology OK 12
AARON S GREENBERG Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease NY 1
AARON S KATZENMEYER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Acute Care MS 2
AARON TAYLOR CLARK Allopathic & Osteopathic Physicians|Family Medicine GA 1
AARON TEA Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family CA 1
AARON TUCKLER Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease FL 1
AARON V JAVIER Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical NJ 1
AARON VU SWISHER Allopathic & Osteopathic Physicians|Family Medicine NC 9
AARON W MADDOX Allopathic & Osteopathic Physicians|Internal Medicine MI 1
AARON WAITE KARR Allopathic & Osteopathic Physicians|Family Medicine AL 1
AARTHI P SATHYA Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family MD 2
AASHIKA DHUNGEL Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family CA 1
AATISH M PATEL Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology OK 6
AAYUSH KIRAN PRADHAN Allopathic & Osteopathic Physicians|Hospitalist OH 1
ABAGAIL KATHERINE RIFE Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TN 1
ABAGAIL M SUMMERS Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family MO 1
ABBASS SHAFII — CO 1
ABBEYGAIL JIONGCO Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family CA 2
ABBIE BRIELLE KALEM Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family MS 1
ABBIE G YOUKILIS Allopathic & Osteopathic Physicians|Internal Medicine OH 1
ABBY CARTER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family KY 7
ABBY E MCMAHON Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family IL 10
ABBY E MEAGHER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family SC 1