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

CHING HAI CHANG

Allopathic & Osteopathic Physicians Family Medicine

NPI
1174545909
CMS profile
624295
Location
WALNUT CREEK, CA

General Payments · PY2018–2024

$4,730.59

  • Reported across 224 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$938.03

42 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 $920.59 41
Education $17.44 1

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $345.68 16
PY2019 $398.41 21
PY2020 $89.99 4
PY2021 $1,132.31 52
PY2022 $773.78 36
PY2023 $1,052.39 53
PY2024 $938.03 42

Payment records · PY2024 (42)

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 $25.50 12/19/2024 Food and Beverage Undisputed 01/23/2026 1124881952 CMS
ABBVIE INC. $32.39 01/18/2024 Food and Beverage Undisputed 01/23/2026 1103440708 CMS
ABBVIE INC. $32.44 11/26/2024 Food and Beverage Undisputed 01/23/2026 1103440710 CMS
Amgen Inc. $28.44 02/26/2024 Food and Beverage Undisputed 01/23/2026 1117221651 CMS
Amgen Inc. $32.87 04/09/2024 Food and Beverage Undisputed 01/23/2026 1117221653 CMS
Amgen Inc. $32.80 06/17/2024 Food and Beverage Undisputed 01/23/2026 1117221655 CMS
Amgen Inc. $35.79 07/23/2024 Food and Beverage Undisputed 01/23/2026 1117221657 CMS
Astellas Pharma US Inc $19.06 05/07/2024 Food and Beverage Undisputed 01/23/2026 1139359159 CMS
Astellas Pharma US Inc $28.95 08/20/2024 Food and Beverage Undisputed 01/23/2026 1139384098 CMS
AstraZeneca Pharmaceuticals LP $24.40 02/10/2024 Food and Beverage Undisputed 01/23/2026 1105609325 CMS
AstraZeneca Pharmaceuticals LP $15.52 04/08/2024 Food and Beverage Undisputed 01/23/2026 1105399805 CMS
AstraZeneca Pharmaceuticals LP $24.30 06/03/2024 Food and Beverage Undisputed 01/23/2026 1104715135 CMS
AstraZeneca Pharmaceuticals LP $25.79 06/25/2024 Food and Beverage Undisputed 01/23/2026 1104706479 CMS
AstraZeneca Pharmaceuticals LP $18.38 12/03/2024 Food and Beverage Undisputed 01/23/2026 1104510128 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $21.20 02/08/2024 Food and Beverage Undisputed 01/23/2026 1117902264 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $15.43 03/25/2024 Food and Beverage Undisputed 01/23/2026 1117902262 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $15.33 07/29/2024 Food and Beverage Undisputed 01/23/2026 1117902260 CMS
GlaxoSmithKline, LLC. $29.35 01/16/2024 Food and Beverage Undisputed 01/23/2026 1116593048 CMS
GlaxoSmithKline, LLC. $25.63 02/27/2024 Food and Beverage Undisputed 01/23/2026 1116361311 CMS
GlaxoSmithKline, LLC. $27.97 04/29/2024 Food and Beverage Undisputed 01/23/2026 1116532918 CMS
GlaxoSmithKline, LLC. $2.21 08/05/2024 Food and Beverage Undisputed 01/23/2026 1115999347 CMS
GlaxoSmithKline, LLC. $28.76 08/05/2024 Food and Beverage Undisputed 01/23/2026 1116051507 CMS
GlaxoSmithKline, LLC. $22.07 08/12/2024 Food and Beverage Undisputed 01/23/2026 1116525790 CMS
GlaxoSmithKline, LLC. $34.96 12/03/2024 Food and Beverage Undisputed 01/23/2026 1115749632 CMS
GlaxoSmithKline, LLC. $13.32 12/19/2024 Food and Beverage Undisputed 01/23/2026 1116657049 CMS
Kowa Pharmaceuticals America, Inc. $24.48 12/16/2024 Food and Beverage Undisputed 01/23/2026 1113464909 CMS
Lilly USA, LLC $21.71 07/31/2024 Food and Beverage Undisputed 01/23/2026 1136099610 CMS
Novo Nordisk Inc $24.99 01/28/2024 Food and Beverage Undisputed 01/23/2026 1096743300 CMS
Novo Nordisk Inc $20.95 04/23/2024 Food and Beverage Undisputed 01/23/2026 1096933447 CMS
Novo Nordisk Inc $21.82 11/19/2024 Food and Beverage Undisputed 01/23/2026 1097674069 CMS
PFIZER INC. $38.64 02/15/2024 Food and Beverage Undisputed 01/23/2026 1131003981 CMS
PFIZER INC. $16.93 04/16/2024 Food and Beverage Undisputed 01/23/2026 1131366521 CMS
PFIZER INC. $17.44 05/29/2024 Education Undisputed 01/23/2026 1131616738 CMS
PFIZER INC. $5.97 06/05/2024 Food and Beverage Undisputed 01/23/2026 1130914285 CMS
PFIZER INC. $4.02 09/16/2024 Food and Beverage Undisputed 01/23/2026 1130950153 CMS
PFIZER INC. $28.28 09/16/2024 Food and Beverage Undisputed 01/23/2026 1131940117 CMS
PFIZER INC. $5.15 10/21/2024 Food and Beverage Undisputed 01/23/2026 1130978170 CMS
PFIZER INC. $10.28 10/30/2024 Food and Beverage Undisputed 01/23/2026 1130980996 CMS
PFIZER INC. $17.52 11/04/2024 Food and Beverage Undisputed 01/23/2026 1131207467 CMS
PFIZER INC. $23.56 12/13/2024 Food and Beverage Undisputed 01/23/2026 1131411432 CMS
Sumitomo Pharma America, Inc. $18.99 07/23/2024 Food and Beverage Undisputed 01/23/2026 1148836703 CMS
Vanda Pharmaceuticals Inc. $24.44 08/12/2024 Food and Beverage Undisputed 01/23/2026 1133899053 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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