Physician profile

Henry Chang

Internal Medicine · West Covina, CA

NPI 1740430289

$4,554.49

in general payments reported to CMS, 2019-2025

25 companies · $1,462 in 2025

The $1,462 reported for 2025 was more than what 90% of Internal Medicine providers received nationally (typical 2025 total: $156).

Payments by year

General payments by program year, as reported to CMS.

What the payments were for

Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.

View as a table
Payment typeAmount (2023-2025)
Food and Beverage$2,980.51
Travel and Lodging$76.56

Payment-type detail covers 2023-2025; earlier years are included in totals but not broken out here.

Who reported paying

General payments only, as reported to CMS. Product names cover 2023-2025.

CompanyGeneral paymentsYearsTop products
Amgen INC. $1,356.48 2019-2025 Evenity, Prolia, Repatha
Astrazeneca Pharmaceuticals LP $849.41 2020-2025 Airsupra, Farxiga, Breztri
Lilly USA, LLC $647.75 2019-2025 Mounjaro, Zepbound, Jardiance
Novo Nordisk INC $275.98 2019-2025 Ozempic, Rybelsus
Boehringer Ingelheim Pharmaceuticals, INC. $252.86 2021-2023 Jardiance
Glaxosmithkline, LLC. $144.31 2023-2025 Arexvy, Shingrix, Trelegy Ellipta
Cochlear Americas $138.98 2025 Cochlear Nucleus Ci632 Cochlear Implant With Slim Modiolar Electrode, Baha, Osia Osi300 Implant
Bayer Healthcare Pharmaceuticals INC. $126.23 2021-2022
Novartis Pharmaceuticals Corporation $100.86 2022-2023
Insmed, INC. $79.99 2021
Inspire Medical Systems, INC. $76.56 2025 Inspire
Sanofi-Aventis U.S. LLC $72.91 2019-2022
Radius Health, INC. $67.72 2022-2025
Exact Sciences Corporation $49.96 2025 Cologuard Collection Kit
Astellas Pharma US INC $44.56 2023-2024 Xtandi, Veozah
Show all 25 companies
CompanyGeneral paymentsYearsTop products
Idorsia Pharmaceuticals US INC $37.17 2023 Quviviq
Vertex Pharmaceuticals Incorporated $33.30 2025
Corcept Therapeutics $30.94 2025 Korlym
Sobi, INC $29.67 2025
Pfizer INC. $28.93 2024
Mallinckrodt Hospital Products INC. $27.67 2021
Optinose US, INC. $24.07 2025
Teva Pharmaceuticals USA, INC. $23.76 2019
Leo Pharma INC. $20.91 2023 Adbry
Gilead Sciences, INC. $13.51 2019

Drugs and devices associated with these payments

CMS records which products a payment was associated with, not how the money was allocated. Association is not allocation: one payment can be associated with several products, and a product listing does not mean the payment was made because of that product. Product detail covers 2023-2025.

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Payment summary

Henry Chang

$4,554.49

in general payments reported 2019-2025

Years
2019-2025
Top company
Amgen INC.
Context
The $1,462 reported for 2025 was more than what 90% of Internal Medicine providers received nationally (typical 2025 total: $156).

https://glasscript.com/doctor/1096512/henry-chang

Source: CMS Open Payments, program years 2019-2025. Payments are legal and often routine.

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Source: CMS Open Payments, program years 2019-2025, as reported to CMS by drug and device makers (published June 30, 2026). Drug and device detail covers 2023-2025.