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

JONATHAN B WILLIAMSON

Allopathic & Osteopathic Physicians Internal Medicine Gastroenterology

NPI
1881891703
CMS profile
644653
Location
HARTFORD, CT

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.

Saved items

Saved only in this browser. No account or alerts.

Filter and download payment records

General Payments · PY2024 · Entire year

$1,914.11

81 records · 0 disputed

Summary and payment records

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

Other CMS categories — not shown on this page

Ownership and Investment Interests

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

Ownership and investment interests are reported as the value of an interest held, not as a payment received. They are a different measure from the payment total on this page and are never combined with it.

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

PY2024 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,914.11 81

By paying entity

PY2024 · entire year · sorted by reported total

Page 1 of 2; records 1–50 of 81 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

JONATHAN B WILLIAMSON

NPI 1881891703 · CMS profile ID 644653

Allopathic & Osteopathic Physicians / Internal Medicine / Gastroenterology

HARTFORD, CT

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.

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.

General Payments, PY2024; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; 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 2; records 1–50 of 81 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1881891703?year=2024&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/e6b17c6a-2534-4207-a4a1-6746a14911ff

Cite these filtered records

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

Plain
JONATHAN B WILLIAMSON, NPI 1881891703, CMS profile ID 644653. General Payments, PY2024; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; 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 2; records 1–50 of 81 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1881891703?year=2024&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/e6b17c6a-2534-4207-a4a1-6746a14911ff.
APA 7
IndustryPayments. (2026). JONATHAN B WILLIAMSON, NPI 1881891703, CMS profile ID 644653. General Payments, PY2024; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; 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 2; records 1–50 of 81 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1881891703?year=2024&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/e6b17c6a-2534-4207-a4a1-6746a14911ff.
Bluebook
JONATHAN B WILLIAMSON, NPI 1881891703, CMS profile ID 644653, IndustryPayments, General Payments, PY2024; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; 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 2; records 1–50 of 81 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/e6b17c6a-2534-4207-a4a1-6746a14911ff. https://industrypayments.org/provider/npi-1881891703?year=2024&recipient=provider#records-h.

Centers for Medicare & Medicaid Services, Open Payments

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

Payment records · PY2024

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

General Payments · PY2024 · Physicians and non-physician practitioners · CMS publication 2026-06-30

81 matching records · $1,914.11 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 81 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 81.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
IRONWOOD PHARMACEUTICALS, INC $23.1512/11/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1153762516 CMS
GENZYME CORPORATION $30.3612/06/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1139997109 CMS
Ferring Pharmaceuticals Inc. $22.4712/04/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1137518673 CMS
ABBVIE INC. $20.9912/02/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1106343256 CMS
Janssen Biotech, Inc. $26.0911/21/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078377198 CMS
Janssen Biotech, Inc. $6.2711/20/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078376845 CMS
Takeda Pharmaceuticals U.S.A., Inc. $32.2911/19/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1137698112 CMS
Janssen Biotech, Inc. $20.4711/18/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078376946 CMS
Janssen Biotech, Inc. $18.8911/18/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078377109 CMS
Takeda Pharmaceuticals U.S.A., Inc. $28.4511/15/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1137698110 CMS
ABBVIE INC. $32.1911/14/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1106343254 CMS
Mallinckrodt Hospital Products Inc. $21.9611/12/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1145152995 CMS
ABBVIE INC. $19.1111/06/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1106343252 CMS
Gilead Sciences, Inc. $17.9610/25/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1133771579 CMS
Takeda Pharmaceuticals U.S.A., Inc. $30.2210/24/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1137698108 CMS
ABBVIE INC. $12.9210/16/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1106343250 CMS
GENZYME CORPORATION $25.8310/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1139997075 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $24.1510/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1153420639 CMS
ABBVIE INC. $21.2310/02/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1106343248 CMS
Lilly USA, LLC $22.3810/02/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1135078129 CMS
Janssen Biotech, Inc. $20.0709/30/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078377068 CMS
Takeda Pharmaceuticals U.S.A., Inc. $23.3309/26/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1137698106 CMS
Regeneron Healthcare Solutions, Inc. $20.3109/23/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1114255736 CMS
Takeda Pharmaceuticals U.S.A., Inc. $27.5409/20/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1137698104 CMS
ABBVIE INC. $26.3509/19/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1106343246 CMS
Sandoz Inc. $24.9709/18/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1089363619 CMS
Regeneron Healthcare Solutions, Inc. $23.0609/16/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1114255734 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $24.4109/11/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1153537430 CMS
ABBVIE INC. $19.5609/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1106343244 CMS
Takeda Pharmaceuticals U.S.A., Inc. $24.6609/04/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1137698102 CMS
ABBVIE INC. $15.4109/03/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1106343242 CMS
ABBVIE INC. $22.4608/29/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1106343240 CMS
ABBVIE INC. $25.5408/26/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1106343238 CMS
Gilead Sciences, Inc. $16.6608/21/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1133771577 CMS
GENZYME CORPORATION $27.7108/16/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1139997071 CMS
IRONWOOD PHARMACEUTICALS, INC $26.4107/31/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1153744349 CMS
Vibrant Gastro, Inc. $36.9007/31/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1151330026 CMS
Janssen Biotech, Inc. $22.1007/15/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078376752 CMS
Intercept Pharmaceuticals, Inc. $15.5407/12/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1113635780 CMS
Takeda Pharmaceuticals U.S.A., Inc. $21.1407/10/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1137698100 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $24.4207/03/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1153452139 CMS
ABBVIE INC. $17.2606/28/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1106343236 CMS
Takeda Pharmaceuticals U.S.A., Inc. $29.8206/25/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1137698098 CMS
ABBVIE INC. $20.6906/17/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1106343234 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $24.6806/12/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1153531554 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $14.7806/06/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1153730997 CMS
ABBVIE INC. $27.7406/05/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1106343232 CMS
GENZYME CORPORATION $26.6906/03/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1139997063 CMS
Lilly USA, LLC $18.0205/17/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1135078127 CMS
ABBVIE INC. $22.4705/14/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1106343230 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $1,259.75 78
PY2020 $378.43 19
PY2021 $157.41 9
PY2022 $886.44 60
PY2023 $1,855.93 88
PY2024 $1,914.11 81
PY2025 $2,118.17 83

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.