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

BRIAN M KARASZEWSKI

Allopathic & Osteopathic Physicians Internal Medicine

NPI
1255478376
CMS profile
283689
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 · PY2019 · Entire year

$4,087.63

341 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

PY2019 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $4,081.73 340
Education $5.90 1

By paying entity

PY2019 · entire year · sorted by reported total

Page 1 of 7; records 1–50 of 341 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

BRIAN M KARASZEWSKI

NPI 1255478376 · CMS profile ID 283689

Allopathic & Osteopathic Physicians / Internal Medicine

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, PY2019; 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 7; records 1–50 of 341 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1255478376?year=2019&recipient=provider#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
BRIAN M KARASZEWSKI, NPI 1255478376, CMS profile ID 283689. General Payments, PY2019; 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 7; records 1–50 of 341 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1255478376?year=2019&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
APA 7
IndustryPayments. (2026). BRIAN M KARASZEWSKI, NPI 1255478376, CMS profile ID 283689. General Payments, PY2019; 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 7; records 1–50 of 341 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1255478376?year=2019&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
Bluebook
BRIAN M KARASZEWSKI, NPI 1255478376, CMS profile ID 283689, IndustryPayments, General Payments, PY2019; 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 7; records 1–50 of 341 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/provider/npi-1255478376?year=2019&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 · PY2019

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

General Payments · PY2019 · Physicians and non-physician practitioners · CMS publication 2026-06-30

341 matching records · $4,087.63 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 341 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 341.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Salix Pharmaceuticals, a division of Bausch Health US, LLC $17.8812/27/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 684771789 CMS
Mylan Specialty L.P. $12.0112/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 694810367 CMS
Amarin Pharma Inc. $9.2312/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 699287433 CMS
Novartis Pharmaceuticals Corporation $9.8512/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 659567917 CMS
Takeda Pharmaceuticals U.S.A., Inc. $14.4812/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681687795 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $4.4312/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700410621 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $9.0112/16/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700036587 CMS
Scilex Pharmaceuticals Inc. $12.1712/13/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 689488889 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $12.7612/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700410623 CMS
Kowa Pharmaceuticals America, Inc. $12.8612/10/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 630277467 CMS
GlaxoSmithKline, LLC. $14.2512/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670632017 CMS
Lilly USA, LLC $0.5912/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 657720189 CMS
Lilly USA, LLC $8.9512/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 657720191 CMS
Amarin Pharma Inc. $9.8512/06/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 699268355 CMS
Vanda Pharmaceuticals Inc. $11.4312/06/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 697661849 CMS
Novo Nordisk Inc $7.2912/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 682457173 CMS
Novo Nordisk Inc $3.1612/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 682457186 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $17.1612/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700036589 CMS
PFIZER INC. $16.9912/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673712623 CMS
PFIZER INC. $14.0211/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673691121 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $10.2811/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 684771787 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $20.7411/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700410625 CMS
GlaxoSmithKline, LLC. $13.9111/21/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671175731 CMS
Amgen Inc. $6.2511/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 662221599 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $10.7411/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700410627 CMS
Amarin Pharma Inc. $9.5011/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 699262887 CMS
Novartis Pharmaceuticals Corporation $16.6511/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 659567915 CMS
Merck Sharp & Dohme Corporation $8.1611/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695915099 CMS
Mylan Specialty L.P. $11.4411/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 694805857 CMS
UCB, Inc. $22.5311/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 688282807 CMS
Astellas Pharma US Inc $19.6011/13/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 655628407 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $15.3011/13/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700410629 CMS
Novartis Pharmaceuticals Corporation $12.3411/13/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 659567929 CMS
Celgene Corporation $98.5311/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 672971865 CMS
Lilly USA, LLC $6.5411/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 657720197 CMS
Novartis Pharmaceuticals Corporation $7.1411/08/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 659567913 CMS
PFIZER INC. $16.9911/08/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673702571 CMS
Novo Nordisk Inc $7.3011/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 682457169 CMS
Novo Nordisk Inc $3.6911/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 682457180 CMS
SANOFI-AVENTIS U.S. LLC $15.0511/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 694198241 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $14.6011/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700410631 CMS
Lilly USA, LLC $12.5111/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 657723587 CMS
Novo Nordisk Inc $6.0810/31/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 682457161 CMS
Novo Nordisk Inc $2.9810/31/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 682457167 CMS
Amgen Inc. $4.7810/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 662221597 CMS
Sobi, Inc $14.0110/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 698094199 CMS
Lilly USA, LLC $7.5610/28/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 657716735 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $16.4710/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 684771783 CMS
Amarin Pharma Inc. $9.9010/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 699247811 CMS
Amgen Inc. $12.8910/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 662221621 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $4,087.63 341
PY2020 $3,411.51 210
PY2021 $4,189.60 254
PY2022 $3,480.66 202
PY2023 $4,076.71 231
PY2024 $4,234.97 218
PY2025 $4,057.11 212

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.