Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Covered recipient · General Payments record

KAREN J CHANG-CHEN

Allopathic & Osteopathic Physicians Internal Medicine Endocrinology, Diabetes & Metabolism

NPI
1508916495
CMS profile
68019
Location
CHESTERFIELD, MO

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

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General Payments · PY2025 · Entire year

$117,949.48

277 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

“Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.”

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. 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.
  • Methodology & Data — sourcing, labeling, and limitations.

Provider summaries generated . CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

By nature of payment

PY2025 · entire year · sorted by reported total

By paying entity

PY2025 · entire year · sorted by reported total

Payment records · PY2025

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

General Payments · PY2025 · Physicians and non-physician practitioners · CMS publication 2026-06-30

277 matching records · $117,949.48 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 277 matching records (CSV)

CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.

Showing records 1–50 of 277.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Ascendis Pharma Endocrinology Inc $20.0712/30/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261237055610 CMS
Dexcom, Inc. $20.6012/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261250498563 CMS
Sequel Med Tech, LLC $13.9812/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261243732462 CMS
Amgen Inc. $14.8612/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261227153559 CMS
RGH Enterprises LLC $16.1012/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261220028952 CMS
Abbott Laboratories $21.3612/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261240998002 CMS
Almatica Pharma LLC $15.4711/26/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261209930552 CMS
Amgen Inc. $17.9611/24/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261228496468 CMS
Medtronic, Inc. $29.9711/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261218917081 CMS
Novo Nordisk Inc $18.5311/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261188693122 CMS
Dexcom, Inc. $19.0411/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261250498561 CMS
Novo Nordisk Inc $31.4911/14/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261188300870 CMS
Mannkind Corporation $23.3111/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261250871404 CMS
Alexion Pharmaceuticals, Inc. $24.8811/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261202965916 CMS
BETA BIONICS, INC. $1.9611/07/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261246817029 CMS
BETA BIONICS, INC. $25.2511/07/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261246817080 CMS
Sequel Med Tech, LLC $24.6811/06/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261243732458 CMS
Sequel Med Tech, LLC $9.8211/05/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261243732455 CMS
Novartis Pharmaceuticals Corporation $28.8411/04/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200117676 CMS
Novartis Pharmaceuticals Corporation $24.9311/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200019919 CMS
Lilly USA, LLC $700.0010/31/2025 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: NEW
06/30/20261186680167 CMS
Tandem Diabetes Care, Inc. $18.6610/31/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261241305438 CMS
Sequel Med Tech, LLC $25.0910/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261243732451 CMS
Lilly USA, LLC $700.0010/24/2025 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: NEW
06/30/20261186717611 CMS
Novo Nordisk Inc $15.4210/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261188666920 CMS
Sequel Med Tech, LLC $12.3110/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261243732448 CMS
Dexcom, Inc. $22.2810/20/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261250498559 CMS
Esperion Therapeutics, Inc. $17.5110/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261243954834 CMS
Novartis Pharmaceuticals Corporation $27.8610/13/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200117670 CMS
Novartis Pharmaceuticals Corporation $16.1310/07/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200117662 CMS
Novo Nordisk Inc $494.0610/07/2025 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: NEW
06/30/20261189063924 CMS
Antares Pharma, Inc. $18.3309/30/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261235883287 CMS
Radius Health, Inc. $19.2509/30/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261249513781 CMS
Lilly USA, LLC $700.0009/26/2025 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: NEW
06/30/20261186705603 CMS
Medtronic, Inc. $22.1709/26/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261218917079 CMS
Lilly USA, LLC $15.0509/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261186660571 CMS
Lilly USA, LLC $74.7709/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261186660573 CMS
Lilly USA, LLC $365.4009/25/2025 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/20261186668125 CMS
Lilly USA, LLC $5.0009/25/2025 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/20261186669453 CMS
Novo Nordisk Inc $24.9509/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261188600143 CMS
Novo Nordisk Inc $16.0209/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261189112291 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $14.8709/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261222741907 CMS
Lilly USA, LLC $700.0009/15/2025 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: NEW
06/30/20261186698393 CMS
Xeris Pharmaceuticals, Inc. $25.5209/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261250163518 CMS
Lilly USA, LLC $1.9609/09/2025 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/20261186704305 CMS
Novo Nordisk Inc $8.7709/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261188301977 CMS
RECORDATI_RARE_DISEASES_INC. $19.8009/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261181713730 CMS
Lilly USA, LLC $525.0009/05/2025 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: NEW
06/30/20261186660569 CMS
Lilly USA, LLC $1,400.0009/05/2025 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: NEW
06/30/20261186680165 CMS
Sequel Med Tech, LLC $22.4609/05/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261243732443 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $84,793.44 236
PY2020 $59,064.42 118
PY2021 $94,021.47 179
PY2022 $103,604.23 239
PY2023 $72,116.27 212
PY2024 $108,247.96 294
PY2025 $117,949.48 277

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files and profile matching
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.

Cite this record.

Plain
KAREN J CHANG-CHEN, NPI 1508916495. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1508916495.
APA 7
IndustryPayments. (2026). KAREN J CHANG-CHEN, NPI 1508916495 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1508916495
Bluebook
KAREN J CHANG-CHEN, NPI 1508916495, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1508916495.

Source: Centers for Medicare & Medicaid Services, Open Payments.