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

YUEMING CHANG

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1629398904
CMS profile
2775200
Location
FARMINGTON, CT

General Payments · PY2018–2022

$1,030.91

  • Reported across 57 records
  • CMS publication 2026-01-23

Latest program year · PY2022

$79.93

4 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

PY2022 · sorted by reported total

Nature of paymentAmountRecords
Education $61.00 3
Food and Beverage $18.93 1

By paying entity

PY2022 · sorted by reported total

Paying entityAmountRecords
GlaxoSmithKline, LLC. $32.19 1
Amgen Inc. $18.93 1
E.R. Squibb & Sons, L.L.C. $14.79 1
JAZZ PHARMACEUTICALS INC. $14.02 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $444.37 30
PY2019 $327.92 19
PY2020 $29.45 2
PY2021 $149.24 2
PY2022 $79.93 4

Payment records · PY2022 (4)

Sorted by paying entity, then date · as published by CMS

Program year 2022 2018201920202021 Record-level detail is published for PY2022; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
Amgen Inc. $18.93 10/25/2022 Food and Beverage Undisputed 01/23/2026 939917137 CMS
E.R. Squibb & Sons, L.L.C. $14.79 02/11/2022 Education Undisputed 01/23/2026 932699931 CMS
GlaxoSmithKline, LLC. $32.19 11/28/2022 Education Undisputed 01/23/2026 944603111 CMS
JAZZ PHARMACEUTICALS INC. $14.02 04/27/2022 Education Undisputed 01/23/2026 951323479 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
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2020 , PY2021 , PY2022
Generated from
OP_DTL_GNRL_PGYR2022_P01232026_01102026.csv

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