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

WALTER STADLER

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1033272547
CMS profile
904905
Location
ZION, IL

General Payments · PY2019–2025

$118,064.25

  • Reported across 135 records
  • CMS publication 2026-06-30

Latest program year · PY2025

$11,582.13

16 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
Consulting Fee $11,095.00 12
Food and Beverage $487.13 4

By paying entity

PY2025 · sorted by reported total

Paying entityAmountRecords
Merck Sharp & Dohme Corporation $4,420.00 6
PFIZER INC. $2,649.17 3
EMD Serono, Inc. $1,900.00 1
AstraZeneca UK Limited $1,575.00 2
AstraZeneca AB $700.00 1
Exelixis Inc. $337.96 3

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $20,151.37 24
PY2020 $21,332.50 15
PY2021 $18,300.00 20
PY2022 $22,444.76 26
PY2023 $10,367.71 16
PY2024 $13,885.78 18
PY2025 $11,582.13 16

Payment records · PY2025 (16)

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
AstraZeneca AB $700.00 01/31/2025 Consulting Fee Undisputed 06/30/2026 1202952412 CMS
AstraZeneca UK Limited $700.00 06/19/2025 Consulting Fee Undisputed 06/30/2026 1202963794 CMS
AstraZeneca UK Limited $875.00 08/29/2025 Consulting Fee Undisputed 06/30/2026 1202969824 CMS
EMD Serono, Inc. $1,900.00 12/23/2025 Consulting Fee Undisputed 06/30/2026 1236871777 CMS
Exelixis Inc. $29.32 02/14/2025 Food and Beverage Undisputed 06/30/2026 1218807741 CMS
Exelixis Inc. $133.64 02/14/2025 Food and Beverage Undisputed 06/30/2026 1218807746 CMS
Exelixis Inc. $175.00 05/31/2025 Food and Beverage Undisputed 06/30/2026 1218807750 CMS
Merck Sharp & Dohme LLC $1,220.00 05/19/2025 Consulting Fee Undisputed 06/30/2026 1238032828 CMS
Merck Sharp & Dohme LLC $960.00 07/14/2025 Consulting Fee Undisputed 06/30/2026 1237995290 CMS
Merck Sharp & Dohme LLC $640.00 10/06/2025 Consulting Fee Undisputed 06/30/2026 1238028476 CMS
Merck Sharp & Dohme LLC $160.00 10/29/2025 Consulting Fee Undisputed 06/30/2026 1237999664 CMS
Merck Sharp & Dohme LLC $160.00 10/29/2025 Consulting Fee Undisputed 06/30/2026 1238003396 CMS
Merck Sharp & Dohme LLC $1,280.00 12/03/2025 Consulting Fee Undisputed 06/30/2026 1238034094 CMS
PFIZER INC. $1,250.00 01/06/2025 Consulting Fee Undisputed 06/30/2026 1228950529 CMS
PFIZER INC. $149.17 02/14/2025 Food and Beverage Undisputed 06/30/2026 1228986626 CMS
PFIZER INC. $1,250.00 07/14/2025 Consulting Fee Undisputed 06/30/2026 1229387220 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

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