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

JUSTIN MAO

Allopathic & Osteopathic Physicians Internal Medicine Clinical Cardiac Electrophysiology

NPI
1427052273
CMS profile
64833
Location
DOWNERS GROVE, IL

General Payments · PY2018–2024

$7,734.82

  • Reported across 168 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$510.92

22 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 $510.92 22

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Abbott Laboratories $248.28 9
BOSTON SCIENTIFIC CORPORATION $132.40 9
ABIOMED $38.35 1
Actelion Pharmaceuticals US, Inc. $34.24 1
Edwards Lifesciences Corporation $34.06 1
PFIZER INC. $23.59 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $1,100.75 67
PY2019 $836.91 27
PY2020 $180.34 9
PY2021 $441.44 10
PY2022 $643.25 16
PY2023 $4,021.21 17
PY2024 $510.92 22

Payment records · PY2024 (22)

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
Abbott Laboratories $128.72 01/17/2024 Food and Beverage Undisputed 01/23/2026 1125057821 CMS
Abbott Laboratories $3.45 02/06/2024 Food and Beverage Undisputed 01/23/2026 1125057823 CMS
Abbott Laboratories $4.75 02/06/2024 Food and Beverage Undisputed 01/23/2026 1125057825 CMS
Abbott Laboratories $3.45 03/20/2024 Food and Beverage Undisputed 01/23/2026 1125057827 CMS
Abbott Laboratories $28.69 09/02/2024 Food and Beverage Undisputed 01/23/2026 1125057829 CMS
Abbott Laboratories $23.33 09/02/2024 Food and Beverage Undisputed 01/23/2026 1125057831 CMS
Abbott Laboratories $9.82 09/19/2024 Food and Beverage Undisputed 01/23/2026 1125057833 CMS
Abbott Laboratories $22.92 09/19/2024 Food and Beverage Undisputed 01/23/2026 1125057835 CMS
Abbott Laboratories $23.15 11/29/2024 Food and Beverage Undisputed 01/23/2026 1125057837 CMS
ABIOMED $38.35 07/23/2024 Food and Beverage Undisputed 01/23/2026 1142211514 CMS
Actelion Pharmaceuticals US, Inc. $34.24 02/29/2024 Food and Beverage Undisputed 01/23/2026 1078885777 CMS
Boston Scientific Corporation $18.57 03/15/2024 Food and Beverage Undisputed 01/23/2026 1092555430 CMS
Boston Scientific Corporation $24.73 04/25/2024 Food and Beverage Undisputed 01/23/2026 1092555434 CMS
Boston Scientific Corporation $12.52 05/17/2024 Food and Beverage Undisputed 01/23/2026 1092555424 CMS
Boston Scientific Corporation $16.76 08/28/2024 Food and Beverage Undisputed 01/23/2026 1092555426 CMS
Boston Scientific Corporation $7.30 09/05/2024 Food and Beverage Undisputed 01/23/2026 1092555420 CMS
Boston Scientific Corporation $8.11 09/26/2024 Food and Beverage Undisputed 01/23/2026 1092555422 CMS
Boston Scientific Corporation $17.69 10/16/2024 Food and Beverage Undisputed 01/23/2026 1092555428 CMS
Boston Scientific Corporation $20.16 11/04/2024 Food and Beverage Undisputed 01/23/2026 1092555432 CMS
Boston Scientific Corporation $6.56 11/21/2024 Food and Beverage Undisputed 01/23/2026 1092555418 CMS
Edwards Lifesciences Corporation $34.06 10/21/2024 Food and Beverage Undisputed 01/23/2026 1138856822 CMS
PFIZER INC. $23.59 04/24/2024 Food and Beverage Undisputed 01/23/2026 1131414161 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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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.