Physician profile

Nader Kamangar

Critical Care Medicine (Internal Medicine) · Walnut Creek, CA

NPI 1922093285

$1,986.77

in general payments reported to CMS, 2019-2025

22 companies · $833 in 2025

The $833 reported for 2025 was more than what 75% of Critical Care Medicine (Internal Medicine) providers received nationally (typical 2025 total: $189).

See the full distribution for Critical Care Medicine (Internal 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$1,290.54
Consulting Fee$200.00

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
Bayer Healthcare Pharmaceuticals INC. $308.34 2019-2025
Amgen INC. $210.21 2023-2025 Tezspire
Actelion Pharmaceuticals US, INC. $199.53 2019-2025 Opsumit, Uptravi
Insmed, INC. $187.12 2024-2025 Arikayce, Brinsupri
Boehringer Ingelheim Pharmaceuticals, INC. $162.63 2023-2025 Ofev
United Therapeutics Corporation $159.03 2024-2025 Tyvaso, Tyvaso
Merck Sharp & Dohme LLC $132.19 2019-2025 Winrevair
Janssen Pharmaceuticals, INC $130.49 2019-2024 Xarelto
La Jolla Pharmaceutical Company $54.75 2019
Glaxosmithkline, LLC. $53.24 2025 Nucala
Gilead Sciences, INC. $50.80 2019-2022
Medtronic, INC. $49.37 2025 Illumisite
Philips North America LLC $43.26 2023-2025 Vest Therapy Und
Viatris Specialty LLC $41.78 2025 Yupelri
Atos Medical INC $35.80 2024 Provox Life Home Hme
Show all 21 companies
CompanyGeneral paymentsYearsTop products
Baxter Healthcare $34.69 2023 Hillrom - Life 2000 Ventilation System
Astellas Pharma US INC $33.46 2023 Cresemba
Olympus America INC. $30.39 2023 Evis Exera III Bronchovideoscope
Nabriva Therapeutics, Plc $24.79 2020
Genentech USA, INC. $22.80 2019
Mylan Specialty L.P. $22.10 2024 Yupelri

1 company reported research payments only; those appear in the research section below.

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.

If you want to bring it up

Most clinicians are glad to talk about this. A respectful way in:

These are normal questions. A good clinician will welcome them.

Share this page

Payment summary

Nader Kamangar

$1,986.77

in general payments reported 2019-2025

Years
2019-2025
Top company
Bayer Healthcare Pharmaceuticals INC.
Context
The $833 reported for 2025 was more than what 75% of Critical Care Medicine (Internal Medicine) providers received nationally (typical 2025 total: $189).

https://glasscript.com/doctor/178343/nader-kamangar

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

Keep an eye on this page

Get an email when the next June refresh changes this page. No account needed.

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.