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

MATHEW T WALKER

Eye and Vision Services Providers Optometrist

NPI
1255595864
CMS profile
238277
Location
ALEXANDRIA, MN

General Payments · PY2018–2024

$34,072.25

  • Reported across 104 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$1,730.89

26 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 $704.72 23
Consulting Fee $600.00 1
Travel and Lodging $426.17 2

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
GLAUKOS CORPORATION $798.78 4
Alcon Laboratories Inc $728.10 13
RxSight Inc $52.83 2
Sight Sciences, Inc. $40.90 2
BIOTISSUE HOLDINGS INC. $40.74 2
Rayner Intraocular Lenses Limited $31.94 1
Harrow Eye, LLC $24.24 1
Amgen Inc. $13.36 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $138.10 4
PY2019 $275.23 5
PY2020 $12,259.21 21
PY2021 $7,403.98 14
PY2022 $11,493.38 23
PY2023 $771.46 11
PY2024 $1,730.89 26

Payment records · PY2024 (26)

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
Alcon Vision LLC $25.02 02/12/2024 Food and Beverage Undisputed 01/23/2026 1110661731 CMS
Alcon Vision LLC $10.57 02/29/2024 Food and Beverage Undisputed 01/23/2026 1110661715 CMS
Alcon Vision LLC $15.99 03/05/2024 Food and Beverage Undisputed 01/23/2026 1110661721 CMS
Alcon Vision LLC $14.28 03/28/2024 Food and Beverage Undisputed 01/23/2026 1110661719 CMS
Alcon Vision LLC $19.57 05/16/2024 Food and Beverage Undisputed 01/23/2026 1110661729 CMS
Alcon Vision LLC $18.15 08/14/2024 Food and Beverage Undisputed 01/23/2026 1110661725 CMS
Alcon Vision LLC $17.63 08/22/2024 Food and Beverage Undisputed 01/23/2026 1110661723 CMS
Alcon Vision LLC $73.54 09/13/2024 Travel and Lodging Undisputed 01/23/2026 1110527359 CMS
Alcon Vision LLC $352.63 09/13/2024 Travel and Lodging Undisputed 01/23/2026 1110527361 CMS
Alcon Vision LLC $12.88 09/19/2024 Food and Beverage Undisputed 01/23/2026 1110661717 CMS
Alcon Vision LLC $18.73 10/09/2024 Food and Beverage Undisputed 01/23/2026 1110661727 CMS
Alcon Vision LLC $73.00 11/06/2024 Food and Beverage Undisputed 01/23/2026 1110661733 CMS
Alcon Vision LLC $76.11 11/07/2024 Food and Beverage Undisputed 01/23/2026 1110666283 CMS
Amgen Inc. $13.36 07/24/2024 Food and Beverage Undisputed 01/23/2026 1116199044 CMS
BIOTISSUE HOLDINGS INC. $20.11 06/24/2024 Food and Beverage Undisputed 01/23/2026 1148771846 CMS
BIOTISSUE HOLDINGS INC. $20.63 09/16/2024 Food and Beverage Undisputed 01/23/2026 1148763360 CMS
Glaukos Corporation $22.74 06/05/2024 Food and Beverage Undisputed 01/23/2026 1151994826 CMS
Glaukos Corporation $13.33 07/26/2024 Food and Beverage Undisputed 01/23/2026 1151987226 CMS
Glaukos Corporation $162.71 11/07/2024 Food and Beverage Undisputed 01/23/2026 1151990917 CMS
Glaukos Corporation $600.00 12/04/2024 Consulting Fee Undisputed 01/23/2026 1151973865 CMS
Harrow Eye, LLC $24.24 02/19/2024 Food and Beverage Undisputed 01/23/2026 1145621048 CMS
Rayner Intraocular Lenses Limited $31.94 11/18/2024 Food and Beverage Undisputed 01/23/2026 1076276722 CMS
RxSight Inc $28.51 01/22/2024 Food and Beverage Undisputed 01/23/2026 1144230293 CMS
RxSight Inc $24.32 08/13/2024 Food and Beverage Undisputed 01/23/2026 1144230295 CMS
Sight Sciences, Inc. $21.21 03/06/2024 Food and Beverage Undisputed 01/23/2026 1151937119 CMS
Sight Sciences, Inc. $19.69 12/10/2024 Food and Beverage Undisputed 01/23/2026 1151935521 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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