Physician profile

Eric Chang

Gynecology · Buffalo, NY

NPI 1538321203

$3,318.61

in general payments reported to CMS, 2019-2025

20 companies · $202 in 2025

The $202 reported for 2025 was more than what a typical Gynecology provider received nationally (typical 2025 total: $162).

Payments by year

General and research 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$1,375.45
Education$12.73

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. Research payments are listed separately below. Product names cover 2023-2025.

CompanyGeneral paymentsYearsTop products
Boston Scientific Corporation $675.00 2019
Ferring Pharmaceuticals INC. $471.53 2019-2025 Menopur
Ascendis Pharma Endocrinology INC $387.27 2022-2024
Coopersurgical, INC. $315.31 2020-2024 Origio Sequential Fert, Stripper
Organon LLC $300.41 2023-2025
Novo Nordisk INC $291.68 2020-2023 Wegovy
Abbvie INC. $226.36 2019-2022
Emd Serono, INC. $149.30 2019-2024
Pfizer INC. $92.56 2023-2024
Galen US INC $87.10 2019-2020
Cook Medical LLC $74.91 2020-2023 Guardia
Medtronic, INC. $52.29 2024 Truclear
Amag Pharmaceuticals, INC. $50.78 2019-2020
Sumitomo Pharma America, INC. $33.99 2023 Myfembree
Lilly USA, LLC $22.99 2025 Zepbound
Show all 20 companies
CompanyGeneral paymentsYearsTop products
Mayne Pharma Commercial LLC $21.75 2025
Therapeuticsmd, INC. $20.36 2019
Myovant Sciences INC. $15.44 2022
Smith+Nephew, INC. $14.92 2019
Duchesnay USA Incorporated $14.66 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.

Research and ownership

$410.00 in research payments reported 2019-2025. Research payments are often institution-directed and tied to clinical trials: they are reported under a clinician's name but frequently go to a hospital or research organization, and usually reflect participation in medical research.

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Payment summary

Eric Chang

$3,318.61

in general payments reported 2019-2025

Years
2019-2025
Top company
Boston Scientific Corporation
Context
The $202 reported for 2025 was more than what a typical Gynecology provider received nationally (typical 2025 total: $162).

https://glasscript.com/doctor/1204141/eric-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.