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

PETER DG CHANG SING

Allopathic & Osteopathic Physicians Internal Medicine Clinical Cardiac Electrophysiology

NPI
1386678902
CMS profile
334860
Location
SANTA ROSA, CA

General Payments · PY2018–2024

$45,865.89

  • Reported across 313 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$2,707.81

37 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
Travel and Lodging $1,825.92 6
Food and Beverage $881.89 31

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $15,585.70 58
PY2019 $6,837.19 53
PY2020 $4,128.44 18
PY2021 $2,862.14 22
PY2022 $3,556.29 42
PY2023 $10,188.32 83
PY2024 $2,707.81 37

Payment records · PY2024 (37)

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 $24.67 04/05/2024 Food and Beverage Undisputed 01/23/2026 1125040260 CMS
Biosense Webster, Inc. $32.51 01/31/2024 Food and Beverage Undisputed 01/23/2026 1077664212 CMS
Biosense Webster, Inc. $33.35 03/28/2024 Food and Beverage Undisputed 01/23/2026 1077664210 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $22.63 01/11/2024 Food and Beverage Undisputed 01/23/2026 1117989770 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $29.23 04/05/2024 Food and Beverage Undisputed 01/23/2026 1117989768 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $25.51 06/28/2024 Food and Beverage Undisputed 01/23/2026 1117989772 CMS
Boston Scientific Corporation $12.50 01/10/2024 Food and Beverage Undisputed 01/23/2026 1092737252 CMS
Boston Scientific Corporation $30.57 01/10/2024 Food and Beverage Undisputed 01/23/2026 1092737268 CMS
Boston Scientific Corporation $10.32 01/18/2024 Food and Beverage Undisputed 01/23/2026 1092737250 CMS
Boston Scientific Corporation $38.72 02/07/2024 Food and Beverage Undisputed 01/23/2026 1092737274 CMS
Boston Scientific Corporation $22.34 02/21/2024 Food and Beverage Undisputed 01/23/2026 1092737260 CMS
Boston Scientific Corporation $22.33 03/12/2024 Food and Beverage Undisputed 01/23/2026 1092737258 CMS
Boston Scientific Corporation $16.76 05/22/2024 Food and Beverage Undisputed 01/23/2026 1092737254 CMS
Boston Scientific Corporation $26.27 06/04/2024 Food and Beverage Undisputed 01/23/2026 1092737262 CMS
Boston Scientific Corporation $6.60 06/11/2024 Food and Beverage Undisputed 01/23/2026 1092737248 CMS
Boston Scientific Corporation $27.68 06/11/2024 Food and Beverage Undisputed 01/23/2026 1092737264 CMS
Boston Scientific Corporation $33.17 07/25/2024 Food and Beverage Undisputed 01/23/2026 1092737272 CMS
Boston Scientific Corporation $20.86 08/01/2024 Food and Beverage Undisputed 01/23/2026 1092737256 CMS
Boston Scientific Corporation $30.86 08/01/2024 Food and Beverage Undisputed 01/23/2026 1092737270 CMS
Boston Scientific Corporation $43.84 10/10/2024 Food and Beverage Undisputed 01/23/2026 1092737276 CMS
Boston Scientific Corporation $28.77 12/05/2024 Food and Beverage Undisputed 01/23/2026 1092737266 CMS
E.R. Squibb & Sons, L.L.C. $26.45 02/08/2024 Food and Beverage Undisputed 01/23/2026 1101723746 CMS
iRhythm Technologies, Inc. $22.81 03/08/2024 Food and Beverage Undisputed 01/23/2026 1154039839 CMS
Kestra Medical Technology Services, Inc. $24.34 07/25/2024 Food and Beverage Undisputed 01/23/2026 1152380996 CMS
Medtronic, Inc. $902.67 01/18/2024 Travel and Lodging Undisputed 01/23/2026 1119295433 CMS
Medtronic, Inc. $182.89 02/11/2024 Travel and Lodging Undisputed 01/23/2026 1119295437 CMS
Medtronic, Inc. $36.08 02/12/2024 Food and Beverage Undisputed 01/23/2026 1119295429 CMS
Medtronic, Inc. $298.52 02/12/2024 Travel and Lodging Undisputed 01/23/2026 1119295431 CMS
Medtronic, Inc. $65.32 02/12/2024 Travel and Lodging Undisputed 01/23/2026 1119295439 CMS
Medtronic, Inc. $298.52 02/14/2024 Travel and Lodging Undisputed 01/23/2026 1119295427 CMS
Medtronic, Inc. $78.00 02/14/2024 Travel and Lodging Undisputed 01/23/2026 1119295435 CMS
Medtronic, Inc. $122.81 08/06/2024 Food and Beverage Undisputed 01/23/2026 1119295441 CMS
Medtronic, Inc. $8.25 08/06/2024 Food and Beverage Undisputed 01/23/2026 1119295443 CMS
Merck Sharp & Dohme LLC $28.51 02/09/2024 Food and Beverage Undisputed 01/23/2026 1141634909 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $25.77 02/12/2024 Food and Beverage Undisputed 01/23/2026 1080679920 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $26.35 03/22/2024 Food and Beverage Undisputed 01/23/2026 1080679972 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $21.03 05/03/2024 Food and Beverage Undisputed 01/23/2026 1080680028 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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