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

JOHN D KLEMPERER

Allopathic & Osteopathic Physicians Thoracic Surgery (Cardiothoracic Vascular Surgery)

NPI
1457337172
CMS profile
603848
Location
BANGOR, ME

General Payments · PY2018–2024

$93,494.37

  • Reported across 167 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$10,287.34

15 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 $9,000.00 3
Food and Beverage $750.66 10
Travel and Lodging $536.68 2

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
ATRICURE, INC. $9,614.79 6
Edwards Lifesciences Corporation $293.23 3
INTUITIVE SURGICAL, INC. $205.25 2
ABIOMED $174.07 4

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $513.12 7
PY2019 $2,174.47 21
PY2020 $7,343.02 34
PY2021 $42,261.08 56
PY2022 $18,255.90 20
PY2023 $12,659.44 14
PY2024 $10,287.34 15

Payment records · PY2024 (15)

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
ABIOMED $27.60 07/31/2024 Food and Beverage Undisputed 01/23/2026 1142247346 CMS
ABIOMED $111.04 09/05/2024 Food and Beverage Undisputed 01/23/2026 1142247390 CMS
ABIOMED $3.32 09/10/2024 Food and Beverage Undisputed 01/23/2026 1142247386 CMS
ABIOMED $32.11 09/10/2024 Food and Beverage Undisputed 01/23/2026 1142247388 CMS
ATRICURE, INC. $6,750.00 01/04/2024 Consulting Fee Undisputed 01/23/2026 1132893371 CMS
ATRICURE, INC. $314.40 01/04/2024 Travel and Lodging Undisputed 01/23/2026 1132893529 CMS
ATRICURE, INC. $78.11 01/04/2024 Food and Beverage Undisputed 01/23/2026 1132893531 CMS
ATRICURE, INC. $222.28 01/04/2024 Travel and Lodging Undisputed 01/23/2026 1132894735 CMS
ATRICURE, INC. $1,125.00 04/03/2024 Consulting Fee Undisputed 01/23/2026 1132875391 CMS
ATRICURE, INC. $1,125.00 12/06/2024 Consulting Fee Undisputed 01/23/2026 1132881077 CMS
Edwards Lifesciences Corporation $93.85 02/22/2024 Food and Beverage Undisputed 01/23/2026 1138812777 CMS
Edwards Lifesciences Corporation $90.05 05/07/2024 Food and Beverage Undisputed 01/23/2026 1138812805 CMS
Edwards Lifesciences Corporation $109.33 12/02/2024 Food and Beverage Undisputed 01/23/2026 1138812843 CMS
INTUITIVE SURGICAL, INC. $111.95 07/02/2024 Food and Beverage Undisputed 01/23/2026 1137194475 CMS
INTUITIVE SURGICAL, INC. $93.30 11/26/2024 Food and Beverage Undisputed 01/23/2026 1137139222 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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