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

ALLEN SEBASTIAN MATHEW

Allopathic & Osteopathic Physicians Internal Medicine Nephrology

NPI
1417053075
CMS profile
1086715
Location
EUREKA, CA

General Payments · PY2018–2024

$4,922.79

  • Reported across 50 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$2,753.19

11 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

Nature of paymentAmountRecords
Travel and Lodging $1,812.89 1
Food and Beverage $940.30 10

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
CALLIDITAS THERAPEUTICS US INC. $2,172.89 2
Amgen Inc. $381.69 3
Novo Nordisk AS $79.22 1
Fresenius USA Marketing, Inc. $60.65 3
Retrophin, Inc. $32.02 1
Acerta Pharma LLC $26.72 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $149.59 4
PY2019 $212.60 6
PY2020 $31.83 2
PY2021 $214.79 8
PY2022 $244.23 11
PY2023 $1,316.56 8
PY2024 $2,753.19 11

Payment records · PY2024 (11)

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
Amgen Inc. $138.18 09/12/2024 Food and Beverage Undisputed 01/23/2026 1117320968 CMS
Amgen Inc. $139.92 10/09/2024 Food and Beverage Undisputed 01/23/2026 1117320972 CMS
Amgen Inc. $103.59 10/23/2024 Food and Beverage Undisputed 01/23/2026 1117320970 CMS
AstraZeneca Pharmaceuticals LP $26.72 03/27/2024 Food and Beverage Undisputed 01/23/2026 1105740184 CMS
CALLIDITAS THERAPEUTICS US INC. $1,812.89 09/27/2024 Travel and Lodging Undisputed 01/23/2026 1141523463 CMS
CALLIDITAS THERAPEUTICS US INC. $360.00 09/27/2024 Food and Beverage Undisputed 01/23/2026 1141523465 CMS
Fresenius USA Marketing, Inc. $17.61 10/15/2024 Food and Beverage Undisputed 01/23/2026 1154200308 CMS
Fresenius USA Marketing, Inc. $24.27 10/29/2024 Food and Beverage Undisputed 01/23/2026 1154200306 CMS
Fresenius USA Marketing, Inc. $18.77 11/12/2024 Food and Beverage Undisputed 01/23/2026 1154200310 CMS
Novo Nordisk Inc $79.22 06/04/2024 Food and Beverage Undisputed 01/23/2026 1096900273 CMS
Travere Therapeutics, Inc. $32.02 08/07/2024 Food and Beverage Undisputed 01/23/2026 1149874337 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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