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

KENNETH G HALLIWELL

Allopathic & Osteopathic Physicians Psychiatry & Neurology Neurology

NPI
1639338429
CMS profile
74836
Location
WILLIAMSVILLE, NY

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 · PY2024 · Entire year

$33,426.35

86 records · 0 disputed

Summary and payment records

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

“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

By paying entity

PY2024 · entire year · sorted by reported total

Page 1 of 2; records 1–50 of 86 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

KENNETH G HALLIWELL

NPI 1639338429 · CMS profile ID 74836

Allopathic & Osteopathic Physicians / Psychiatry & Neurology / Neurology

WILLIAMSVILLE, NY

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 86 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1639338429?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
KENNETH G HALLIWELL, NPI 1639338429, CMS profile ID 74836. 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 86 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1639338429?year=2024&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/e6b17c6a-2534-4207-a4a1-6746a14911ff.
APA 7
IndustryPayments. (2026). KENNETH G HALLIWELL, NPI 1639338429, CMS profile ID 74836. 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 86 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1639338429?year=2024&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/e6b17c6a-2534-4207-a4a1-6746a14911ff.
Bluebook
KENNETH G HALLIWELL, NPI 1639338429, CMS profile ID 74836, 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 86 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-1639338429?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

86 matching records · $33,426.35 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 86 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 86.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Avadel CNS Pharmaceuticals, LLC $12.7312/19/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382146 CMS
Avadel CNS Pharmaceuticals, LLC $15.9212/16/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382144 CMS
Axsome Therapeutics, Inc. $25.7512/11/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1148295844 CMS
Avadel CNS Pharmaceuticals, LLC $16.4112/05/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382142 CMS
IDORSIA PHARMACEUTICALS US INC $24.9712/05/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1146786017 CMS
Avadel CNS Pharmaceuticals, LLC $14.5511/21/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382140 CMS
LivaNova USA, Inc. $116.1311/19/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1152801185 CMS
Avadel CNS Pharmaceuticals, LLC $14.4311/14/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382138 CMS
IDORSIA PHARMACEUTICALS US INC $18.2911/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1146792498 CMS
Avadel CNS Pharmaceuticals, LLC $16.8210/31/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382136 CMS
Azurity Pharmaceuticals, Inc. $18.7410/31/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1134006635 CMS
JAZZ PHARMACEUTICALS INC. $18.3310/29/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1150224650 CMS
Avadel CNS Pharmaceuticals, LLC $2,800.0010/24/2024 Honoraria No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382134 CMS
Fisher & Paykel Healthcare Inc $23.8610/22/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1143844264 CMS
Avadel CNS Pharmaceuticals, LLC $17.4810/17/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382132 CMS
JAZZ PHARMACEUTICALS INC. $8.0910/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1150224636 CMS
JAZZ PHARMACEUTICALS INC. $8.7110/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1150224644 CMS
IDORSIA PHARMACEUTICALS US INC $19.9410/03/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1146759838 CMS
Avadel CNS Pharmaceuticals, LLC $2,800.0010/02/2024 Honoraria No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382128 CMS
Avadel CNS Pharmaceuticals, LLC $153.2710/02/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382130 CMS
JAZZ PHARMACEUTICALS INC. $9.9510/02/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1150224646 CMS
Avadel CNS Pharmaceuticals, LLC $83.8909/30/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382122 CMS
Avadel CNS Pharmaceuticals, LLC $2,800.0009/30/2024 Honoraria No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382124 CMS
Avadel CNS Pharmaceuticals, LLC $188.6409/30/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382126 CMS
Avadel CNS Pharmaceuticals, LLC $124.9509/25/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382114 CMS
Avadel CNS Pharmaceuticals, LLC $2,800.0009/25/2024 Honoraria No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382116 CMS
Avadel CNS Pharmaceuticals, LLC $81.2209/25/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382118 CMS
Avadel CNS Pharmaceuticals, LLC $13.7609/25/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382120 CMS
JAZZ PHARMACEUTICALS INC. $10.4709/19/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1150224654 CMS
Inspire Medical Systems, Inc. $30.8009/12/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1148058648 CMS
Inspire Medical Systems, Inc. $30.3909/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1148058646 CMS
Avadel CNS Pharmaceuticals, LLC $15.8309/05/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382112 CMS
JAZZ PHARMACEUTICALS INC. $6.3709/04/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1150224638 CMS
JAZZ PHARMACEUTICALS INC. $16.1608/27/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1150224640 CMS
Avadel CNS Pharmaceuticals, LLC $15.5308/22/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382110 CMS
Avadel CNS Pharmaceuticals, LLC $13.9908/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382108 CMS
IDORSIA PHARMACEUTICALS US INC $16.6808/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1146789047 CMS
JAZZ PHARMACEUTICALS INC. $9.5608/06/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1150224652 CMS
Avadel CNS Pharmaceuticals, LLC $2,500.0008/01/2024 Honoraria No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382104 CMS
Avadel CNS Pharmaceuticals, LLC $180.7808/01/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382106 CMS
Inspire Medical Systems, Inc. $30.8507/25/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1148058644 CMS
Axsome Therapeutics, Inc. $16.8007/23/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1148295842 CMS
IDORSIA PHARMACEUTICALS US INC $22.3506/26/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1146780799 CMS
JAZZ PHARMACEUTICALS INC. $8.5806/23/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1150224664 CMS
Avadel CNS Pharmaceuticals, LLC $11.1906/20/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382102 CMS
Avadel CNS Pharmaceuticals, LLC $15.1506/13/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382100 CMS
Axsome Therapeutics, Inc. $18.2106/06/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1148295840 CMS
IDORSIA PHARMACEUTICALS US INC $22.3505/29/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1146779509 CMS
Fisher & Paykel Healthcare Inc $25.6905/24/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1143836823 CMS
Avadel CNS Pharmaceuticals, LLC $15.6405/23/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1123382098 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $1,670.08 13
PY2020 $20.43 1
PY2021 $16,490.10 22
PY2022 $44,906.98 67
PY2023 $99,961.73 129
PY2024 $33,426.35 86
PY2025 $3,881.68 31

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.