Physician profile

Earl M Darby

Gastroenterology (Internal Medicine) · Oakland, CA

NPI 1790743292

$3,485.80

in general payments reported to CMS, 2019-2025

20 companies · none reported in 2025

See the full distribution for Gastroenterology (Internal Medicine)

Payments by year

General payments by program year, as reported to CMS.

Who reported paying

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

CompanyGeneral paymentsYearsTop products
Abbvie INC. $844.25 2019-2022
Gilead Sciences, INC. $626.48 2019-2021
Janssen Biotech, INC. $488.20 2019-2021
Takeda Pharmaceuticals U.S.A., INC. $359.32 2019-2021
Salix Pharmaceuticals, A Division of Bausch Health US, LLC $197.07 2019-2020
Daiichi Sankyo INC. $175.37 2019-2021
Shionogi INC $116.33 2019-2020
Cook Medical LLC $110.11 2020
Pfizer INC. $90.20 2019
Braintree Laboratories, INC. $69.63 2019-2021
Intercept Pharmaceuticals, INC. $58.79 2019-2020
Redhill Biopharma INC. $57.15 2020
Endo Pharmaceuticals INC. $55.79 2019
Merck Sharp & Dohme LLC $55.28 2019-2020
Ferring Pharmaceuticals INC. $47.89 2019-2021
Show all 20 companies
CompanyGeneral paymentsYearsTop products
Alfasigma USA, INC. $41.38 2020
Allergan, INC. $38.43 2019-2020
Vivus LLC $24.01 2019
Ironwood Pharmaceuticals, INC $17.49 2021
Ucb, INC. $12.63 2019

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Payment summary

Earl M Darby

$3,485.80

in general payments reported 2019-2025

Years
2019-2022
Top company
Abbvie INC.

https://glasscript.com/doctor/35502/earl-m-darby

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.