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

BASSAM I MATTAR

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1053372649
CMS profile
2583
Location
WICHITA, KS

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 · PY2025 · Entire year

$41,259.84

198 records · 0 disputed

Summary and payment records

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

Other CMS categories — not shown on this page

Research Payments

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

“If you are a physician who served as a principal investigator on a research study, you may see the payments associated with that research study listed under your name. This does not necessarily mean the payments are attributed to you. The dollar amount of the record corresponds to the total payment; the amounts are not attributed to each individual on the record.”

— Centers for Medicare & Medicaid Services, Open Payments Frequently Asked Questions, FAQ #12224

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

PY2025 · entire year · sorted by reported total

By paying entity

PY2025 · entire year · sorted by reported total

Paying entityAmountRecords
GlaxoSmithKline, LLC. $10,854.96 16
E.R. Squibb & Sons, L.L.C. $8,241.91 17
Daiichi Sankyo Inc. $5,365.20 9
AstraZeneca Pharmaceuticals LP $4,431.36 6
Takeda Pharmaceuticals U.S.A., Inc. $3,094.90 3
BeOne Medicines USA, Inc. $1,966.73 2
Janssen Scientific Affairs, LLC $1,725.00 1
Janssen Global Services, LLC $1,320.00 1
Gilead Sciences, Inc. $1,208.36 5
Novartis Pharmaceuticals Corporation $1,000.95 21
PFIZER INC. $387.08 27
ABBVIE INC. $269.14 16
Rigel Pharmaceuticals, Inc. $153.86 2
EMD Serono, Inc. $150.79 12
Astellas Pharma US Inc $85.22 5
Janssen Biotech, Inc. $72.94 5
SpringWorks Therapeutics, Inc. $64.73 3
GENZYME CORPORATION $58.01 3
Syndax Pharmaceuticals, Inc. $51.49 3
RECORDATI_RARE_DISEASES_INC. $50.05 3
Boehringer Ingelheim Pharmaceuticals, Inc. $45.93 2
Genentech USA, Inc. $45.61 3
Celgene Corporation $43.24 2
Merck Sharp & Dohme LLC $40.69 2
Iovance Biotherapeutics, Inc. $38.79 2
SOBI, INC $36.99 2
Stemline Therapeutics Inc. $34.62 2
PharmaEssentia USA Corporation $34.59 2
ARRAY BIOPHARMA INC $33.59 2
Aveo Pharmaceuticals, Inc. $32.51 2
Eisai Inc. $30.38 1
Deciphera Pharmaceuticals Inc. $24.00 1
Octapharma USA, Inc. $21.10 1
Secura Bio, Inc. $20.50 1
Cycle Pharmaceuticals Inc $19.51 1
Geron Corporation $19.49 1
Incyte Corporation $18.48 1
JAZZ PHARMACEUTICALS INC. $17.86 1
Genmab U.S., Inc. $17.70 1
Lilly USA, LLC $17.59 1
Immunocore Limited $17.56 1
Acrotech Biopharma Inc. $17.04 1
TerSera Therapeutics LLC $16.88 1
TAIHO ONCOLOGY, INC. $16.75 1
Ipsen Biopharmaceuticals, Inc $15.46 1
Exelixis Inc. $15.32 1
Adaptive Biotechnologies Corporation $14.98 1

Page 1 of 4; records 1–50 of 198 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

BASSAM I MATTAR

NPI 1053372649 · CMS profile ID 2583

Allopathic & Osteopathic Physicians / Internal Medicine / Hematology & Oncology

WICHITA, KS

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, PY2025; 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 4; records 1–50 of 198 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1053372649?year=2025&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e

Cite these filtered records

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

Plain
BASSAM I MATTAR, NPI 1053372649, CMS profile ID 2583. General Payments, PY2025; 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 4; records 1–50 of 198 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1053372649?year=2025&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e.
APA 7
IndustryPayments. (2026). BASSAM I MATTAR, NPI 1053372649, CMS profile ID 2583. General Payments, PY2025; 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 4; records 1–50 of 198 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1053372649?year=2025&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e.
Bluebook
BASSAM I MATTAR, NPI 1053372649, CMS profile ID 2583, IndustryPayments, General Payments, PY2025; 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 4; records 1–50 of 198 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e. https://industrypayments.org/provider/npi-1053372649?year=2025&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 · PY2025

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

General Payments · PY2025 · Physicians and non-physician practitioners · CMS publication 2026-06-30

198 matching records · $41,259.84 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 198 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 198.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Takeda Pharmaceuticals U.S.A., Inc. $1,760.0012/26/2025 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: NEW
06/30/2026 1223794091 CMS
PharmaEssentia USA Corporation $16.2412/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1246824514 CMS
AstraZeneca Pharmaceuticals LP $2,010.0012/19/2025 Consulting Fee No dispute reported Delay: No
Change: NEW
06/30/2026 1207041270 CMS
PFIZER INC. $3.5112/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1229892655 CMS
PFIZER INC. $23.8112/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1229939634 CMS
Novartis Pharmaceuticals Corporation $8.9612/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200606554 CMS
Aveo Pharmaceuticals, Inc. $14.2812/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1199897806 CMS
ABBVIE INC. $23.4212/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1203037073 CMS
EMD Serono, Inc. $16.5712/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1236881252 CMS
ABBVIE INC. $21.0212/04/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1203037071 CMS
Cycle Pharmaceuticals Inc $19.5112/04/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1248899250 CMS
BeOne Medicines USA, Inc. $1,950.0012/03/2025 Consulting Fee No dispute reported Delay: No
Change: NEW
06/30/2026 1202885896 CMS
Janssen Biotech, Inc. $16.8912/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1174472539 CMS
ABBVIE INC. $18.0611/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1203037069 CMS
Daiichi Sankyo Inc. $2,115.0011/25/2025 Consulting Fee No dispute reported Delay: No
Change: NEW
06/30/2026 1197096021 CMS
EMD Serono, Inc. $8.9511/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1236879003 CMS
AstraZeneca Pharmaceuticals LP $2,345.0011/20/2025 Consulting Fee No dispute reported Delay: No
Change: NEW
06/30/2026 1206746208 CMS
Daiichi Sankyo Inc. $24.8211/13/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1197003115 CMS
Celgene Corporation $23.5811/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184869694 CMS
E.R. Squibb & Sons, L.L.C. $15.6011/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184869690 CMS
GlaxoSmithKline, LLC. $363.0011/05/2025 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: NEW
06/30/2026 1190895991 CMS
TerSera Therapeutics LLC $16.8811/05/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1244054167 CMS
Novartis Pharmaceuticals Corporation $32.3911/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200606528 CMS
Novartis Pharmaceuticals Corporation $11.4910/31/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200606546 CMS
EMD Serono, Inc. $17.4710/30/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1236891325 CMS
Novartis Pharmaceuticals Corporation $8.7810/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200606544 CMS
Rigel Pharmaceuticals, Inc. $132.0610/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1247378928 CMS
GENZYME CORPORATION $18.1510/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1233324344 CMS
PFIZER INC. $24.6410/27/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1229747807 CMS
E.R. Squibb & Sons, L.L.C. $9.3310/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184869686 CMS
Exelixis Inc. $15.3210/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1218791839 CMS
ABBVIE INC. $14.4610/20/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1203037067 CMS
Immunocore Limited $17.5610/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1235826857 CMS
PFIZER INC. $15.9210/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1229535784 CMS
EMD Serono, Inc. $18.5010/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1236894183 CMS
Gilead Sciences, Inc. $1,160.0010/09/2025 Consulting Fee No dispute reported Delay: No
Change: NEW
06/30/2026 1234352544 CMS
GlaxoSmithKline, LLC. $1,087.5010/08/2025 Consulting Fee No dispute reported Delay: No
Change: NEW
06/30/2026 1190492151 CMS
Astellas Pharma US Inc $14.5110/06/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1238685037 CMS
GlaxoSmithKline, LLC. $20.9010/06/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1190976694 CMS
Novartis Pharmaceuticals Corporation $10.5910/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200695324 CMS
ABBVIE INC. $21.1110/02/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1203037065 CMS
ABBVIE INC. $13.9210/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1203037063 CMS
E.R. Squibb & Sons, L.L.C. $6.4410/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184869676 CMS
Ipsen Biopharmaceuticals, Inc $15.4610/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1208826735 CMS
Incyte Corporation $18.4809/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1226173263 CMS
E.R. Squibb & Sons, L.L.C. $2,012.5009/24/2025 Consulting Fee No dispute reported Delay: No
Change: NEW
06/30/2026 1184869668 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $24.0409/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1222956240 CMS
Deciphera Pharmaceuticals Inc. $24.0009/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1235960277 CMS
Novartis Pharmaceuticals Corporation $7.9109/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200695304 CMS
Novartis Pharmaceuticals Corporation $7.9109/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200695308 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $1,276.70 68
PY2020 $11,238.05 55
PY2021 $14,243.26 82
PY2022 $38,674.90 201
PY2023 $56,706.90 227
PY2024 $57,645.19 229
PY2025 $41,259.84 198

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.