Physician profile

Douglas D Zhang

Geriatric Medicine (Family Medicine) · San Leandro, CA

NPI 1023074341

$20,053.84

in general payments reported to CMS, 2019-2025

54 companies · $1,427 in 2025

The $1,427 reported for 2025 was more than what 94% of Geriatric Medicine (Family Medicine) providers received nationally (typical 2025 total: $119).

See the full distribution for Geriatric Medicine (Family Medicine)

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$5,452.03
Education$17.44

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
Abbvie INC. $2,354.88 2019-2025 Vraylar, Creon
Novo Nordisk INC $2,142.19 2019-2025 Ozempic, Rybelsus
Glaxosmithkline, LLC. $2,066.17 2019-2025 Trelegy Ellipta, Arexvy, Shingrix
Janssen Pharmaceuticals, INC $1,543.98 2019-2024 Xarelto
Astrazeneca Pharmaceuticals LP $1,470.90 2019-2025 Farxiga, Breztri, Airsupra
Lilly USA, LLC $903.65 2019-2025 Mounjaro, Jardiance
Boehringer Ingelheim Pharmaceuticals, INC. $830.76 2019-2025 Jardiance, Tradjenta
Pfizer INC. $735.49 2019-2024
Mylan Specialty L.P. $617.87 2019-2024 Yupelri
Teva Pharmaceuticals USA, INC. $567.65 2019-2022
Amgen INC. $501.39 2019-2024 Otezla, Repatha, Krystexxa
Merck Sharp & Dohme LLC $485.51 2019-2025 Gardasil 9, Capvaxive, Gardasil
Amarin Pharma, INC. $462.67 2019-2022
Bayer Healthcare Pharmaceuticals INC. $447.08 2021-2025
Salix Pharmaceuticals, A Division of Bausch Health US, LLC $422.42 2019-2023 Xifaxan
Show all 54 companies
CompanyGeneral paymentsYearsTop products
E.R. Squibb & Sons, L.L.C. $376.19 2019-2025 Eliquis
Takeda Pharmaceuticals U.S.A., INC. $357.18 2019-2023 Trintellix
Allergan, INC. $333.82 2020-2021
Sanofi-Aventis U.S. LLC $305.07 2019-2022
Novartis Pharmaceuticals Corporation $303.29 2019-2023
Astellas Pharma US INC $279.11 2019-2025 Veozah
Radius Health, INC. $218.01 2019-2021
Kowa Pharmaceuticals America, INC. $197.16 2022-2025 Zoryve
Biohaven Pharmaceuticals, INC. $196.72 2021
Biohaven Pharmaceutical Holding Company LTD. $183.49 2022
Boston Scientific Corporation $137.59 2020-2023
Otsuka America Pharmaceutical, INC. $124.02 2023 Rexulti
Abbott Laboratories $110.60 2024-2025 Freestyle Libre 3
Idorsia Pharmaceuticals US INC $105.83 2022-2024 Quviviq
Eisai INC. $104.27 2020-2021
Exact Sciences Corporation $104.12 2023-2025 Cologuard Collection Kit
Vbi Vaccine (Delaware) INC. $100.24 2022-2023 Prehevbrio
Comsort, INC $100.00 2019
Hologic Sales and Service, LLC $87.64 2019-2020
Dexcom, INC. $86.48 2021-2025 Dexcom G6 Transmitter
Sanofi Pasteur INC. $86.14 2019-2023
Genentech USA, INC. $79.78 2019-2021
Horizon Therapeutics Plc $72.28 2019-2023 Krystexxa
Bausch Health US, LLC $64.67 2019-2020
Nalpropion Pharmaceuticals LLC $55.83 2019
Xeris Pharmaceuticals, INC. $48.74 2023-2024 Gvoke Hypopen
Insulet Corporation $41.25 2021
Almatica Pharma LLC $28.79 2025 Teriparatide
Phathom Pharmaceuticals, INC. $25.33 2025 Voquezna
Vivus LLC $24.15 2019
Ultragenyx Pharmaceutical INC. $24.08 2022
Edwards Lifesciences Corporation $22.37 2024 Edwards Sapien 3 Transcatheter Heart Valve (Thv)
Iti, INC. (D/B/A Intra-Cellular Therapies, INC.) $22.29 2025 Caplyta
Alfasigma USA, INC. $20.72 2021
Sumitomo Pharma America, INC. $20.01 2023 Gemtesa
Regeneron Healthcare Solutions, INC. $18.70 2019
Alexion Pharmaceuticals, INC. $17.50 2021
Cequr Corporation $13.53 2023 Cequr Simplicity
Medline Industries LP $4.24 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

Douglas D Zhang

$20,053.84

in general payments reported 2019-2025

Years
2019-2025
Top company
Abbvie INC.
Context
The $1,427 reported for 2025 was more than what 94% of Geriatric Medicine (Family Medicine) providers received nationally (typical 2025 total: $119).

https://glasscript.com/doctor/91459/douglas-d-zhang

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.