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

DEAN G KARAHALIOS

Allopathic & Osteopathic Physicians Neurological Surgery

NPI
1245205210
CMS profile
56277
Location
PARK RIDGE, IL

General Payments · PY2018–2024

$254,229.95

  • Reported across 223 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$14,039.16

23 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
Consulting Fee $8,250.00 1
Royalty or License $3,342.31 5
Travel and Lodging $2,197.69 8
Food and Beverage $249.16 9

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Medtronic, Inc. $12,675.85 22
Zimmer Biomet Holdings, Inc. $1,363.31 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $86,332.53 78
PY2019 $81,183.55 63
PY2020 $26,974.41 19
PY2021 $10,289.62 15
PY2022 $17,127.18 12
PY2023 $18,283.50 13
PY2024 $14,039.16 23

Payment records · PY2024 (23)

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
Medtronic, Inc. $30.37 01/12/2024 Food and Beverage Undisputed 01/23/2026 1117124572 CMS
Medtronic, Inc. $657.00 02/21/2024 Royalty or License Undisputed 01/23/2026 1112055471 CMS
Medtronic, Inc. $5.45 04/09/2024 Food and Beverage Undisputed 01/23/2026 1121135481 CMS
Medtronic, Inc. $26.97 04/25/2024 Food and Beverage Undisputed 01/23/2026 1117124574 CMS
Medtronic, Inc. $34.86 05/10/2024 Food and Beverage Undisputed 01/23/2026 1117124594 CMS
Medtronic, Inc. $56.88 05/15/2024 Travel and Lodging Undisputed 01/23/2026 1112052403 CMS
Medtronic, Inc. $446.57 05/15/2024 Travel and Lodging Undisputed 01/23/2026 1112052405 CMS
Medtronic, Inc. $588.51 05/15/2024 Travel and Lodging Undisputed 01/23/2026 1117124576 CMS
Medtronic, Inc. $179.00 05/15/2024 Travel and Lodging Undisputed 01/23/2026 1117124582 CMS
Medtronic, Inc. $17.47 05/15/2024 Travel and Lodging Undisputed 01/23/2026 1117124584 CMS
Medtronic, Inc. $66.20 05/15/2024 Food and Beverage Undisputed 01/23/2026 1117124586 CMS
Medtronic, Inc. $118.50 05/16/2024 Travel and Lodging Undisputed 01/23/2026 1112052407 CMS
Medtronic, Inc. $471.16 05/16/2024 Travel and Lodging Undisputed 01/23/2026 1117124578 CMS
Medtronic, Inc. $319.60 05/16/2024 Travel and Lodging Undisputed 01/23/2026 1117124580 CMS
Medtronic, Inc. $22.59 05/16/2024 Food and Beverage Undisputed 01/23/2026 1117124588 CMS
Medtronic, Inc. $36.54 05/16/2024 Food and Beverage Undisputed 01/23/2026 1117124590 CMS
Medtronic, Inc. $3.59 05/16/2024 Food and Beverage Undisputed 01/23/2026 1117124592 CMS
Medtronic, Inc. $506.00 05/17/2024 Royalty or License Undisputed 01/23/2026 1112055473 CMS
Medtronic, Inc. $8,250.00 06/13/2024 Consulting Fee Undisputed 01/23/2026 1112052401 CMS
Medtronic, Inc. $417.00 08/15/2024 Royalty or License Undisputed 01/23/2026 1112055475 CMS
Medtronic, Inc. $22.59 09/27/2024 Food and Beverage Undisputed 01/23/2026 1117124596 CMS
Medtronic, Inc. $399.00 11/25/2024 Royalty or License Undisputed 01/23/2026 1112055477 CMS
Zimmer Biomet Holdings, Inc. $1,363.31 01/03/2024 Royalty or License Undisputed 01/23/2026 1155021735 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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