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 5 of 7; records 201–250 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 5 of 7; records 201–250 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&page=5#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 5 of 7; records 201–250 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&page=5#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 5 of 7; records 201–250 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&page=5#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 5 of 7; records 201–250 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&page=5#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 201–250 of 341.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Janssen Pharmaceuticals, Inc $20.8605/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 658812923 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $2.9505/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700036585 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $11.7305/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700410529 CMS
Merck Sharp & Dohme Corporation $6.2705/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695605465 CMS
Lilly USA, LLC $14.2405/06/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 657709781 CMS
Lilly USA, LLC $0.8305/06/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 657727119 CMS
Amarin Pharma Inc. $7.8705/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 699134307 CMS
Novo Nordisk Inc $7.4805/02/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 682757711 CMS
Novo Nordisk Inc $2.3505/02/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 682757723 CMS
PFIZER INC. $15.0405/02/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 672056293 CMS
Horizon Therapeutics plc $15.7405/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 691410577 CMS
Vanda Pharmaceuticals Inc. $12.8505/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 697661845 CMS
Amgen Inc. $9.1004/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 662221591 CMS
Amgen Inc. $24.4804/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 662221617 CMS
Merck Sharp & Dohme Corporation $14.3104/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695903241 CMS
Lilly USA, LLC $14.3404/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 657702805 CMS
Allergan Inc. $11.1604/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670633849 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $9.9204/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700410531 CMS
Grifols USA, LLC $20.2804/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692586713 CMS
GlaxoSmithKline, LLC. $12.5204/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671526915 CMS
Novo Nordisk Inc $11.5804/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 669539921 CMS
Astellas Pharma US Inc $18.0904/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 655628381 CMS
GlaxoSmithKline, LLC. $8.4004/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671016442 CMS
Lilly USA, LLC $12.5404/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 657727117 CMS
Amarin Pharma Inc. $6.3304/16/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 699131799 CMS
Teva Pharmaceuticals USA, Inc. $14.7704/16/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 697702425 CMS
Scilex Pharmaceuticals Inc. $13.9304/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 689469101 CMS
Amgen Inc. $13.0804/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 662221627 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $13.2404/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700410533 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $9.4804/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700410617 CMS
Ironwood Pharmaceuticals, Inc $11.4204/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 709215625 CMS
Amarin Pharma Inc. $5.1604/08/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 699119271 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $12.0304/08/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700410535 CMS
SANOFI-AVENTIS U.S. LLC $12.2804/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 693968817 CMS
Novo Nordisk Inc $8.0204/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 682757699 CMS
Novo Nordisk Inc $2.5804/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 682757703 CMS
Collegium Pharmaceutical, Inc. $10.8504/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 655148005 CMS
Lilly USA, LLC $3.2904/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 657713223 CMS
PFIZER INC. $12.4104/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671978451 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $13.5904/02/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 684771771 CMS
GlaxoSmithKline, LLC. $10.8004/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670329269 CMS
Amgen Inc. $12.1503/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 662221603 CMS
UCB, Inc. $18.5003/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 688268525 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $12.2903/28/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700410537 CMS
PFIZER INC. $2.3303/27/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673054365 CMS
GlaxoSmithKline, LLC. $12.5303/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670655437 CMS
SANOFI-AVENTIS U.S. LLC $12.8003/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 693990741 CMS
Takeda Pharmaceuticals U.S.A., Inc. $16.4203/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681707519 CMS
Novo Nordisk Inc $9.2603/21/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 682757673 CMS
Novo Nordisk Inc $4.2103/21/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 682757687 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.