Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-01-23 View official record Methodology

Covered recipient · General Payments record

MARK MATTAR

Allopathic & Osteopathic Physicians Internal Medicine Gastroenterology

NPI
1841401031
CMS profile
129107
Location
WASHINGTON, DC

General Payments · PY2018–2024

$349,129.09

  • Reported across 308 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$61,692.44

53 records · 0 disputed

Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.

How these totals are calculated
  • The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. 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.
  • Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2024 · sorted by reported total

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Janssen Biotech, Inc. $23,932.41 23
Lilly USA, LLC $11,461.14 10
ABBVIE INC. $11,322.92 5
E.R. Squibb & Sons, L.L.C. $8,857.50 3
Celltrion USA Inc. $5,478.35 8
Celgene Corporation $620.56 2
BOSTON SCIENTIFIC CORPORATION $13.17 1
Janssen Scientific Affairs, LLC $6.39 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $61,859.99 63
PY2019 $44,194.21 40
PY2020 $28,584.94 33
PY2021 $59,793.79 37
PY2022 $41,500.95 33
PY2023 $51,502.77 49
PY2024 $61,692.44 53

Payment records · PY2024 (53)

Sorted by paying entity, then date · as published by CMS

Program year 2024 201820192020202120222023 Record-level detail is published for PY2024; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
ABBVIE INC. $2,400.00 04/11/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1104985265 CMS
ABBVIE INC. $2,400.00 10/28/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1104985267 CMS
ABBVIE INC. $122.92 11/14/2024 Food and Beverage Undisputed 01/23/2026 1104985269 CMS
ABBVIE INC. $2,400.00 12/02/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1104985271 CMS
ABBVIE INC. $4,000.00 12/16/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1104985273 CMS
Boston Scientific Corporation $13.17 03/18/2024 Food and Beverage Undisputed 01/23/2026 1092330182 CMS
Celgene Corporation $600.00 03/25/2024 Consulting Fee Undisputed 01/23/2026 1101183731 CMS
Celgene Corporation $20.56 08/19/2024 Food and Beverage Undisputed 01/23/2026 1101183725 CMS
Celltrion USA Inc. $740.00 04/12/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1075855027 CMS
Celltrion USA Inc. $1,110.00 07/16/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1075855029 CMS
Celltrion USA Inc. $19.67 08/26/2024 Education Undisputed 01/23/2026 1075855031 CMS
Celltrion USA Inc. $1.18 08/26/2024 Education Undisputed 01/23/2026 1075855033 CMS
Celltrion USA Inc. $1,110.00 08/27/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1075855035 CMS
Celltrion USA Inc. $1,110.00 10/10/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1075855037 CMS
Celltrion USA Inc. $1,110.00 10/31/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1075855039 CMS
Celltrion USA Inc. $277.50 12/11/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1075855041 CMS
E.R. Squibb & Sons, L.L.C. $1,104.50 10/25/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1101766352 CMS
E.R. Squibb & Sons, L.L.C. $7,199.00 12/19/2024 Consulting Fee Undisputed 01/23/2026 1101766360 CMS
E.R. Squibb & Sons, L.L.C. $554.00 12/30/2024 Consulting Fee Undisputed 01/23/2026 1101766356 CMS
Janssen Biotech, Inc. $1,500.00 02/10/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1078389596 CMS
Janssen Biotech, Inc. $1,500.00 03/02/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1078390378 CMS
Janssen Biotech, Inc. $1,313.00 04/17/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1078389309 CMS
Janssen Biotech, Inc. $1,500.00 04/27/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1078390739 CMS
Janssen Biotech, Inc. $149.18 05/18/2024 Food and Beverage Undisputed 01/23/2026 1078389987 CMS
Janssen Biotech, Inc. $32.00 05/18/2024 Food and Beverage Undisputed 01/23/2026 1078390580 CMS
Janssen Biotech, Inc. $2,250.00 05/24/2024 Consulting Fee Undisputed 01/23/2026 1078389240 CMS
Janssen Biotech, Inc. $318.31 09/27/2024 Travel and Lodging Undisputed 01/23/2026 1078390252 CMS
Janssen Biotech, Inc. $295.32 09/27/2024 Travel and Lodging Undisputed 01/23/2026 1078391520 CMS
Janssen Biotech, Inc. $38.15 09/28/2024 Food and Beverage Undisputed 01/23/2026 1078388489 CMS
Janssen Biotech, Inc. $59.33 09/28/2024 Food and Beverage Undisputed 01/23/2026 1078388588 CMS
Janssen Biotech, Inc. $38.93 09/28/2024 Food and Beverage Undisputed 01/23/2026 1078390814 CMS
Janssen Biotech, Inc. $125.00 10/08/2024 Food and Beverage Undisputed 01/23/2026 1078390339 CMS
Janssen Biotech, Inc. $1,500.00 10/12/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1078388780 CMS
Janssen Biotech, Inc. $3,375.00 10/12/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1078390391 CMS
Janssen Biotech, Inc. $63.65 10/14/2024 Travel and Lodging Undisputed 01/23/2026 1078388292 CMS
Janssen Biotech, Inc. $55.05 10/14/2024 Travel and Lodging Undisputed 01/23/2026 1078390394 CMS
Janssen Biotech, Inc. $1,500.00 10/19/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1078388288 CMS
Janssen Biotech, Inc. $1,500.00 10/19/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1078391271 CMS
Janssen Biotech, Inc. $53.00 10/21/2024 Travel and Lodging Undisputed 01/23/2026 1078390367 CMS
Janssen Biotech, Inc. $16.49 10/21/2024 Food and Beverage Undisputed 01/23/2026 1078390708 CMS
Janssen Biotech, Inc. $1,500.00 10/26/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1078388782 CMS
Janssen Biotech, Inc. $5,250.00 10/29/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1078388824 CMS
Janssen Scientific Affairs, LLC $6.39 01/17/2024 Food and Beverage Undisputed 01/23/2026 1078846601 CMS
Lilly USA, LLC $625.00 02/09/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1135150996 CMS
Lilly USA, LLC $1,562.50 03/22/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1135167096 CMS
Lilly USA, LLC $1,250.00 04/29/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1135167216 CMS
Lilly USA, LLC $75.02 08/15/2024 Food and Beverage Undisputed 01/23/2026 1135113884 CMS
Lilly USA, LLC $950.00 08/21/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1135161267 CMS
Lilly USA, LLC $2,500.00 08/21/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1135167218 CMS
Lilly USA, LLC $369.12 08/23/2024 Travel and Lodging Undisputed 01/23/2026 1135167214 CMS
Lilly USA, LLC $4,062.50 08/29/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1135167098 CMS
Lilly USA, LLC $53.00 08/29/2024 Travel and Lodging Undisputed 01/23/2026 1135167220 CMS
Lilly USA, LLC $14.00 08/29/2024 Food and Beverage Undisputed 01/23/2026 1135167892 CMS

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-01-23
Program years on this page
2018, 2019, 2020, 2021, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

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