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

Reflects CMS Open Payments as of 2026-07-26T04:22:22Z. CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

Covered recipient · General Payments record

MARK L KELDAHL

Allopathic & Osteopathic Physicians Surgery

NPI
1114181658
CMS profile
277593
Location
CHICAGO, IL

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

General Payments · PY2019–2025

  • CMS publication 2026-06-30

Latest program year · PY2025

$137,054.27

40 records · 0 disputed

“Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.”

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. 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) AND records>=2 AND NPI identity (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2025 · sorted by reported total

Nature of paymentAmountRecords
Consulting Fee $132,677.00 12
Food and Beverage $2,341.23 21
Travel and Lodging $2,036.04 7

By paying entity

PY2025 · sorted by reported total

Paying entityAmountRecords
LeMaitre Vascular, Inc. $132,677.00 12
AngioDynamics, Inc. $3,636.61 19
Stryker Corporation $258.39 4
Inari Medical, Inc. $185.28 1
Kerecis Limited $137.96 2
Neuros Medical, Inc. $134.20 1
Ethicon US, LLC $24.83 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $93,542.24 40
PY2020 $77,443.71 33
PY2021 $94,475.36 18
PY2022 $110,346.09 47
PY2023 $118,791.69 35
PY2024 $132,924.56 45
PY2025 $137,054.27 40

Payment records · PY2025 (40)

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

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
LeMaitre Vascular, Inc. $11,649.00 12/16/2025 Consulting Fee No dispute reported 06/30/2026 1241320281 CMS
LeMaitre Vascular, Inc. $10,649.00 12/09/2025 Consulting Fee No dispute reported 06/30/2026 1241320277 CMS
AngioDynamics, Inc. $284.90 12/05/2025 Food and Beverage No dispute reported 06/30/2026 1220853839 CMS
Stryker Corporation $17.66 11/19/2025 Food and Beverage No dispute reported 06/30/2026 1227652317 CMS
AngioDynamics, Inc. $71.55 11/11/2025 Food and Beverage No dispute reported 06/30/2026 1220853837 CMS
LeMaitre Vascular, Inc. $11,649.00 11/06/2025 Consulting Fee No dispute reported 06/30/2026 1241320273 CMS
Stryker Corporation $55.54 10/30/2025 Food and Beverage No dispute reported 06/30/2026 1227652313 CMS
Neuros Medical, Inc. $134.20 10/28/2025 Food and Beverage No dispute reported 06/30/2026 1252652502 CMS
AngioDynamics, Inc. $109.00 10/13/2025 Travel and Lodging No dispute reported 06/30/2026 1220853835 CMS
AngioDynamics, Inc. $934.18 10/12/2025 Travel and Lodging No dispute reported 06/30/2026 1220853831 CMS
AngioDynamics, Inc. $846.42 10/12/2025 Food and Beverage No dispute reported 06/30/2026 1220853833 CMS
AngioDynamics, Inc. $109.00 10/11/2025 Travel and Lodging No dispute reported 06/30/2026 1220853829 CMS
LeMaitre Vascular, Inc. $10,948.00 10/08/2025 Consulting Fee No dispute reported 06/30/2026 1241320269 CMS
AngioDynamics, Inc. $39.47 09/25/2025 Travel and Lodging No dispute reported 06/30/2026 1220853825 CMS
AngioDynamics, Inc. $6.99 09/25/2025 Travel and Lodging No dispute reported 06/30/2026 1220853827 CMS
AngioDynamics, Inc. $6.99 09/12/2025 Travel and Lodging No dispute reported 06/30/2026 1220853823 CMS
AngioDynamics, Inc. $830.41 09/06/2025 Travel and Lodging No dispute reported 06/30/2026 1220853821 CMS
Stryker Corporation $98.94 08/20/2025 Food and Beverage No dispute reported 06/30/2026 1227652309 CMS
AngioDynamics, Inc. $12.54 08/13/2025 Food and Beverage No dispute reported 06/30/2026 1220853815 CMS
AngioDynamics, Inc. $62.24 08/13/2025 Food and Beverage No dispute reported 06/30/2026 1220853817 CMS
AngioDynamics, Inc. $75.94 08/13/2025 Food and Beverage No dispute reported 06/30/2026 1220853819 CMS
LeMaitre Vascular, Inc. $10,649.00 08/13/2025 Consulting Fee No dispute reported 06/30/2026 1241320265 CMS
LeMaitre Vascular, Inc. $12,649.00 08/06/2025 Consulting Fee No dispute reported 06/30/2026 1241320261 CMS
Stryker Corporation $86.25 08/06/2025 Food and Beverage No dispute reported 06/30/2026 1227652304 CMS
AngioDynamics, Inc. $70.22 07/30/2025 Food and Beverage No dispute reported 06/30/2026 1220853813 CMS
LeMaitre Vascular, Inc. $10,649.00 07/08/2025 Consulting Fee No dispute reported 06/30/2026 1241320256 CMS
LeMaitre Vascular, Inc. $11,649.00 06/27/2025 Consulting Fee No dispute reported 06/30/2026 1241320253 CMS
AngioDynamics, Inc. $10.64 05/22/2025 Food and Beverage No dispute reported 06/30/2026 1220853809 CMS
AngioDynamics, Inc. $5.47 05/22/2025 Food and Beverage No dispute reported 06/30/2026 1220853811 CMS
LeMaitre Vascular, Inc. $10,649.00 04/15/2025 Consulting Fee No dispute reported 06/30/2026 1241320246 CMS
AngioDynamics, Inc. $23.01 04/11/2025 Food and Beverage No dispute reported 06/30/2026 1220853807 CMS
AngioDynamics, Inc. $28.88 03/28/2025 Food and Beverage No dispute reported 06/30/2026 1220853805 CMS
AngioDynamics, Inc. $108.76 03/20/2025 Food and Beverage No dispute reported 06/30/2026 1220853803 CMS
LeMaitre Vascular, Inc. $10,649.00 03/18/2025 Consulting Fee No dispute reported 06/30/2026 1241320243 CMS
Ethicon US, LLC $24.83 03/06/2025 Food and Beverage No dispute reported 06/30/2026 1173845228 CMS
LeMaitre Vascular, Inc. $10,649.00 02/14/2025 Consulting Fee No dispute reported 06/30/2026 1241320241 CMS
Inari Medical, Inc. $185.28 02/12/2025 Food and Beverage No dispute reported 06/30/2026 1248571619 CMS
Kerecis Limited $21.23 01/25/2025 Food and Beverage No dispute reported 06/30/2026 1243673359 CMS
Kerecis Limited $116.73 01/21/2025 Food and Beverage No dispute reported 06/30/2026 1243673357 CMS
LeMaitre Vascular, Inc. $10,239.00 01/09/2025 Consulting Fee No dispute reported 06/30/2026 1241320237 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.

Cite this record.

Plain
MARK L KELDAHL, NPI 1114181658. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1114181658.
APA 7
IndustryPayments. (2026). MARK L KELDAHL, NPI 1114181658 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1114181658
Bluebook
MARK L KELDAHL, NPI 1114181658, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1114181658.

Source: Centers for Medicare & Medicaid Services, Open Payments.