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 L VANDEWALKER

Allopathic & Osteopathic Physicians Allergy & Immunology Allergy

NPI
1386833358
CMS profile
290455
Location
COLUMBIA, MO

General Payments · PY2018–2024

$48,751.28

  • Reported across 289 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$408.87

20 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
Food and Beverage $408.87 20

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $34,107.47 87
PY2019 $11,674.91 71
PY2020 $381.23 22
PY2021 $698.05 40
PY2022 $619.00 24
PY2023 $861.75 25
PY2024 $408.87 20

Payment records · PY2024 (20)

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. $14.98 12/04/2024 Food and Beverage Undisputed 01/23/2026 1106269766 CMS
AstraZeneca Pharmaceuticals LP $13.35 02/06/2024 Food and Beverage Undisputed 01/23/2026 1110532423 CMS
AstraZeneca Pharmaceuticals LP $18.94 02/08/2024 Food and Beverage Undisputed 01/23/2026 1110541495 CMS
AstraZeneca Pharmaceuticals LP $14.23 04/18/2024 Food and Beverage Undisputed 01/23/2026 1110542237 CMS
AstraZeneca Pharmaceuticals LP $18.72 06/05/2024 Food and Beverage Undisputed 01/23/2026 1110539113 CMS
AstraZeneca Pharmaceuticals LP $22.09 08/29/2024 Food and Beverage Undisputed 01/23/2026 1110540879 CMS
AstraZeneca Pharmaceuticals LP $15.84 09/04/2024 Food and Beverage Undisputed 01/23/2026 1110537242 CMS
AstraZeneca Pharmaceuticals LP $18.79 09/24/2024 Food and Beverage Undisputed 01/23/2026 1110544399 CMS
AstraZeneca Pharmaceuticals LP $21.85 12/18/2024 Food and Beverage Undisputed 01/23/2026 1110531041 CMS
Genentech USA, Inc. $30.24 09/04/2024 Food and Beverage Undisputed 01/23/2026 1133063389 CMS
Genentech USA, Inc. $46.92 10/16/2024 Food and Beverage Undisputed 01/23/2026 1133063393 CMS
GENZYME CORPORATION $24.73 02/14/2024 Food and Beverage Undisputed 01/23/2026 1139625328 CMS
GENZYME CORPORATION $15.33 04/15/2024 Food and Beverage Undisputed 01/23/2026 1139625340 CMS
GENZYME CORPORATION $23.39 07/10/2024 Food and Beverage Undisputed 01/23/2026 1139625382 CMS
GlaxoSmithKline, LLC. $23.40 02/15/2024 Food and Beverage Undisputed 01/23/2026 1116333439 CMS
GlaxoSmithKline, LLC. $13.17 09/25/2024 Food and Beverage Undisputed 01/23/2026 1116668094 CMS
Octapharma USA, Inc. $16.20 01/08/2024 Food and Beverage Undisputed 01/23/2026 1142320342 CMS
Regeneron Healthcare Solutions, Inc. $19.55 06/04/2024 Food and Beverage Undisputed 01/23/2026 1114233097 CMS
Regeneron Healthcare Solutions, Inc. $19.55 07/09/2024 Food and Beverage Undisputed 01/23/2026 1114233104 CMS
Takeda Pharmaceuticals U.S.A., Inc. $17.60 08/21/2024 Food and Beverage Undisputed 01/23/2026 1137691625 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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