IndustryPayments
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

OLIVIA WEI CHANG

Physician Assistants & Advanced Practice Nursing Providers Physician Assistant

NPI
1649844085
CMS profile
11541010
Location
ORANGE, CA

General Payments · PY2023–2024

$2,620.03

  • Reported across 92 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$2,282.14

77 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.

Related groups: Physician Assistant CA All categories

By nature of payment

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $2,056.94 76
Travel and Lodging $225.20 1

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
ABIOMED $543.21 5
ATRICURE, INC. $413.37 3
NOVARTIS PHARMACEUTICALS CORPORATION $251.89 19
Boehringer Ingelheim Pharmaceuticals, Inc. $157.68 10
Alnylam Pharmaceuticals Inc. $120.13 5
SCPHARMACEUTICALS INC. $104.41 5
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $100.42 4
Amgen Inc. $99.81 5
Merck Sharp & Dohme Corporation $95.66 4
iRhythm Technologies, Inc. $83.93 2
E.R. Squibb & Sons, L.L.C. $75.90 4
PFIZER INC. $70.65 3
Acerta Pharma LLC $37.67 2
Regeneron Healthcare Solutions, Inc. $33.68 1
HEARTFLOW, INC. $25.54 1
Exact Sciences Corporation $20.73 1
Actelion Pharmaceuticals US, Inc. $17.48 1
Janssen Pharmaceuticals, Inc $16.00 1
Reflow Medical Inc $13.98 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2023 $337.89 15
PY2024 $2,282.14 77

Payment records · PY2024 (77)

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

Program year 2024 2023 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 $32.94 08/27/2024 Food and Beverage Undisputed 01/23/2026 1142298511 CMS
ABIOMED $146.43 11/13/2024 Food and Beverage Undisputed 01/23/2026 1142298551 CMS
ABIOMED $77.53 11/15/2024 Food and Beverage Undisputed 01/23/2026 1142298563 CMS
ABIOMED $225.20 11/18/2024 Travel and Lodging Undisputed 01/23/2026 1142298539 CMS
ABIOMED $61.11 11/18/2024 Food and Beverage Undisputed 01/23/2026 1142298553 CMS
Actelion Pharmaceuticals US, Inc. $17.48 10/19/2024 Food and Beverage Undisputed 01/23/2026 1078870842 CMS
Alnylam Pharmaceuticals Inc. $26.93 02/12/2024 Food and Beverage Undisputed 01/23/2026 1125832929 CMS
Alnylam Pharmaceuticals Inc. $19.49 04/04/2024 Food and Beverage Undisputed 01/23/2026 1125832937 CMS
Alnylam Pharmaceuticals Inc. $23.26 06/19/2024 Food and Beverage Undisputed 01/23/2026 1125832991 CMS
Alnylam Pharmaceuticals Inc. $23.26 07/30/2024 Food and Beverage Undisputed 01/23/2026 1125832997 CMS
Alnylam Pharmaceuticals Inc. $27.19 12/17/2024 Food and Beverage Undisputed 01/23/2026 1125833085 CMS
Amgen Inc. $22.65 02/09/2024 Food and Beverage Undisputed 01/23/2026 1117221573 CMS
Amgen Inc. $17.68 04/15/2024 Food and Beverage Undisputed 01/23/2026 1117221575 CMS
Amgen Inc. $23.44 07/09/2024 Food and Beverage Undisputed 01/23/2026 1117221577 CMS
Amgen Inc. $22.76 09/23/2024 Food and Beverage Undisputed 01/23/2026 1117221579 CMS
Amgen Inc. $13.28 10/24/2024 Food and Beverage Undisputed 01/23/2026 1117524415 CMS
AstraZeneca Pharmaceuticals LP $20.56 03/07/2024 Food and Beverage Undisputed 01/23/2026 1104321212 CMS
AstraZeneca Pharmaceuticals LP $17.11 10/21/2024 Food and Beverage Undisputed 01/23/2026 1104622692 CMS
ATRICURE, INC. $135.70 04/22/2024 Food and Beverage Undisputed 01/23/2026 1132870997 CMS
ATRICURE, INC. $149.58 06/14/2024 Food and Beverage Undisputed 01/23/2026 1132879189 CMS
ATRICURE, INC. $128.09 09/09/2024 Food and Beverage Undisputed 01/23/2026 1132888156 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $13.81 01/16/2024 Food and Beverage Undisputed 01/23/2026 1118096278 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $15.22 01/30/2024 Food and Beverage Undisputed 01/23/2026 1118096282 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $13.79 02/20/2024 Food and Beverage Undisputed 01/23/2026 1118096296 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $15.50 04/02/2024 Food and Beverage Undisputed 01/23/2026 1118096284 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $14.29 05/21/2024 Food and Beverage Undisputed 01/23/2026 1118096280 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $16.35 06/18/2024 Food and Beverage Undisputed 01/23/2026 1118096290 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $17.52 07/23/2024 Food and Beverage Undisputed 01/23/2026 1118096292 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $19.54 08/16/2024 Food and Beverage Undisputed 01/23/2026 1118096294 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $15.73 09/24/2024 Food and Beverage Undisputed 01/23/2026 1118096286 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $15.93 10/23/2024 Food and Beverage Undisputed 01/23/2026 1118096288 CMS
E.R. Squibb & Sons, L.L.C. $16.27 05/14/2024 Food and Beverage Undisputed 01/23/2026 1101324706 CMS
E.R. Squibb & Sons, L.L.C. $17.88 09/12/2024 Food and Beverage Undisputed 01/23/2026 1101324722 CMS
E.R. Squibb & Sons, L.L.C. $20.68 10/22/2024 Food and Beverage Undisputed 01/23/2026 1101324732 CMS
E.R. Squibb & Sons, L.L.C. $21.07 11/14/2024 Food and Beverage Undisputed 01/23/2026 1101324740 CMS
Exact Sciences Corporation $20.73 10/09/2024 Food and Beverage Undisputed 01/23/2026 1114565979 CMS
HEARTFLOW, INC. $25.54 04/17/2024 Food and Beverage Undisputed 01/23/2026 1154174473 CMS
iRhythm Technologies, Inc. $27.41 01/16/2024 Food and Beverage Undisputed 01/23/2026 1154048873 CMS
iRhythm Technologies, Inc. $56.52 03/20/2024 Food and Beverage Undisputed 01/23/2026 1154048881 CMS
Janssen Pharmaceuticals, Inc $16.00 07/11/2024 Food and Beverage Undisputed 01/23/2026 1077934049 CMS
Merck Sharp & Dohme LLC $14.63 04/29/2024 Food and Beverage Undisputed 01/23/2026 1141887795 CMS
Merck Sharp & Dohme LLC $27.03 07/22/2024 Food and Beverage Undisputed 01/23/2026 1141756832 CMS
Merck Sharp & Dohme LLC $29.02 08/26/2024 Food and Beverage Undisputed 01/23/2026 1141756836 CMS
Merck Sharp & Dohme LLC $24.98 10/07/2024 Food and Beverage Undisputed 01/23/2026 1141756834 CMS
Novartis Pharmaceuticals Corporation $4.50 01/16/2024 Food and Beverage Undisputed 01/23/2026 1086753245 CMS
Novartis Pharmaceuticals Corporation $1.70 01/24/2024 Food and Beverage Undisputed 01/23/2026 1086753249 CMS
Novartis Pharmaceuticals Corporation $13.05 01/24/2024 Food and Beverage Undisputed 01/23/2026 1086753251 CMS
Novartis Pharmaceuticals Corporation $20.58 02/08/2024 Food and Beverage Undisputed 01/23/2026 1086753247 CMS
Novartis Pharmaceuticals Corporation $17.52 03/12/2024 Food and Beverage Undisputed 01/23/2026 1086753253 CMS
Novartis Pharmaceuticals Corporation $18.39 03/22/2024 Food and Beverage Undisputed 01/23/2026 1086753259 CMS
Novartis Pharmaceuticals Corporation $14.43 04/04/2024 Food and Beverage Undisputed 01/23/2026 1086753261 CMS
Novartis Pharmaceuticals Corporation $13.45 04/11/2024 Food and Beverage Undisputed 01/23/2026 1086753267 CMS
Novartis Pharmaceuticals Corporation $13.71 04/25/2024 Food and Beverage Undisputed 01/23/2026 1086753269 CMS
Novartis Pharmaceuticals Corporation $14.92 05/10/2024 Food and Beverage Undisputed 01/23/2026 1086753271 CMS
Novartis Pharmaceuticals Corporation $20.45 05/29/2024 Food and Beverage Undisputed 01/23/2026 1086753273 CMS
Novartis Pharmaceuticals Corporation $18.01 06/06/2024 Food and Beverage Undisputed 01/23/2026 1086753275 CMS
Novartis Pharmaceuticals Corporation $19.05 06/20/2024 Food and Beverage Undisputed 01/23/2026 1086753277 CMS
Novartis Pharmaceuticals Corporation $10.65 07/18/2024 Food and Beverage Undisputed 01/23/2026 1086753283 CMS
Novartis Pharmaceuticals Corporation $7.95 08/01/2024 Food and Beverage Undisputed 01/23/2026 1086753285 CMS
Novartis Pharmaceuticals Corporation $11.01 09/18/2024 Food and Beverage Undisputed 01/23/2026 1086753287 CMS
Novartis Pharmaceuticals Corporation $0.12 09/18/2024 Food and Beverage Undisputed 01/23/2026 1086753289 CMS
Novartis Pharmaceuticals Corporation $8.01 10/17/2024 Food and Beverage Undisputed 01/23/2026 1086753291 CMS
Novartis Pharmaceuticals Corporation $24.39 10/29/2024 Food and Beverage Undisputed 01/23/2026 1086753293 CMS
PFIZER INC. $23.55 05/29/2024 Food and Beverage Undisputed 01/23/2026 1131624280 CMS
PFIZER INC. $23.55 08/07/2024 Food and Beverage Undisputed 01/23/2026 1131786012 CMS
PFIZER INC. $23.55 10/08/2024 Food and Beverage Undisputed 01/23/2026 1131946544 CMS
Reflow Medical Inc $13.98 06/12/2024 Food and Beverage Undisputed 01/23/2026 1154716628 CMS
Regeneron Healthcare Solutions, Inc. $33.68 06/06/2024 Food and Beverage Undisputed 01/23/2026 1114283083 CMS
SCPHARMACEUTICALS INC. $24.83 02/29/2024 Food and Beverage Undisputed 01/23/2026 1132256901 CMS
SCPHARMACEUTICALS INC. $18.88 05/02/2024 Food and Beverage Undisputed 01/23/2026 1132272479 CMS
SCPHARMACEUTICALS INC. $18.42 07/25/2024 Food and Beverage Undisputed 01/23/2026 1132289531 CMS
SCPHARMACEUTICALS INC. $21.94 09/26/2024 Food and Beverage Undisputed 01/23/2026 1132300638 CMS
SCPHARMACEUTICALS INC. $20.34 11/21/2024 Food and Beverage Undisputed 01/23/2026 1132314282 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $24.51 04/23/2024 Food and Beverage Undisputed 01/23/2026 1080676526 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $25.61 08/14/2024 Food and Beverage Undisputed 01/23/2026 1080676556 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $22.38 09/19/2024 Food and Beverage Undisputed 01/23/2026 1080676568 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $27.92 10/15/2024 Food and Beverage Undisputed 01/23/2026 1080676578 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
2023, 2024
Source files
Dataset page · Bulk file · PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

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