Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-06-30 View official record Methodology

Covered recipient · General Payments record

MARK J ALLEN

Allopathic & Osteopathic Physicians Internal Medicine Gastroenterology

NPI
1457465163
CMS profile
20864
Location
KANSAS CITY, MO

General Payments · PY2019–2025

$5,794.03

  • Reported across 316 records
  • CMS publication 2026-06-30

Latest program year · PY2025

$356.58

18 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

PY2025 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $356.58 18

By paying entity

PY2025 · sorted by reported total

Paying entityAmountRecords
ABBVIE INC. $201.54 11
Celltrion USA Inc. $51.79 3
Ardelyx, Inc. $31.33 1
Janssen Biotech, Inc. $28.96 1
QOL Medical, LLC $24.11 1
Daiichi Sankyo Inc. $18.85 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $450.55 31
PY2020 $270.06 16
PY2021 $973.00 53
PY2022 $667.53 39
PY2023 $1,591.07 84
PY2024 $1,485.24 75
PY2025 $356.58 18

Payment records · PY2025 (18)

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

Program year 2025 201920202021202220232024 Record-level detail is published for PY2025; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
ABBVIE INC. $19.67 01/09/2025 Food and Beverage Undisputed 06/30/2026 1201399764 CMS
ABBVIE INC. $22.25 01/15/2025 Food and Beverage Undisputed 06/30/2026 1201399766 CMS
ABBVIE INC. $14.14 01/31/2025 Food and Beverage Undisputed 06/30/2026 1201399768 CMS
ABBVIE INC. $20.33 02/04/2025 Food and Beverage Undisputed 06/30/2026 1201399770 CMS
ABBVIE INC. $18.66 02/17/2025 Food and Beverage Undisputed 06/30/2026 1201399772 CMS
ABBVIE INC. $15.61 02/26/2025 Food and Beverage Undisputed 06/30/2026 1201399774 CMS
ABBVIE INC. $26.77 03/07/2025 Food and Beverage Undisputed 06/30/2026 1201399776 CMS
ABBVIE INC. $19.68 03/10/2025 Food and Beverage Undisputed 06/30/2026 1201399778 CMS
ABBVIE INC. $15.31 03/19/2025 Food and Beverage Undisputed 06/30/2026 1201399780 CMS
ABBVIE INC. $7.84 03/24/2025 Food and Beverage Undisputed 06/30/2026 1201399782 CMS
ABBVIE INC. $21.28 03/24/2025 Food and Beverage Undisputed 06/30/2026 1201399784 CMS
Ardelyx, Inc. $31.33 03/17/2025 Food and Beverage Undisputed 06/30/2026 1247831045 CMS
Celltrion USA Inc. $16.03 01/22/2025 Food and Beverage Undisputed 06/30/2026 1250817857 CMS
Celltrion USA Inc. $15.13 02/20/2025 Food and Beverage Undisputed 06/30/2026 1250817859 CMS
Celltrion USA Inc. $20.63 03/26/2025 Food and Beverage Undisputed 06/30/2026 1250817861 CMS
Daiichi Sankyo Inc. $18.85 02/11/2025 Food and Beverage Undisputed 06/30/2026 1197051493 CMS
Janssen Biotech, Inc. $28.96 03/21/2025 Food and Beverage Undisputed 06/30/2026 1174949198 CMS
QOL Medical, LLC $24.11 02/13/2025 Food and Beverage Undisputed 06/30/2026 1185013868 CMS

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
Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024 , PY2025
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.