Physician profile

Sankar Narayan Niranjan

Nephrology (Internal Medicine) · Stanford, CA

NPI 1497752802

$3,188.50

in general payments reported to CMS, 2019-2025

24 companies · $122 in 2025

The $122 reported for 2025 was less than what a typical Nephrology (Internal Medicine) provider received nationally (typical 2025 total: $311).

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$1,063.65

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
Astrazeneca Uk Limited $1,335.76 2019
Baxter Healthcare $425.65 2019-2024 Renal - Chronic
Amgen INC. $373.94 2019-2024 Aranesp, Tavneos, Parsabiv
Idorsia Pharmaceuticals US INC $122.00 2025 Tryvio
Travere Therapeutics, INC. $102.73 2022-2023
Astrazeneca Pharmaceuticals LP $99.26 2020-2023
Aurinia Pharma U.S., INC. $75.39 2022
Bard Peripheral Vascular, INC. $72.55 2020
Alexion Pharmaceuticals, INC. $72.13 2019
Akebia Therapeutics INC $65.14 2022-2024 Vafseo, Auryxia
Otsuka America Pharmaceutical, INC. $57.69 2019-2023 Jynarque
Glaxosmithkline, LLC. $57.16 2022-2023 Benlysta
Shire North American Group INC $46.54 2019
Fresenius USA Marketing, INC. $38.57 2019-2020
Bayer Healthcare Pharmaceuticals INC. $35.44 2022
Show all 24 companies
CompanyGeneral paymentsYearsTop products
Mallinckrodt Hospital Products INC. $29.62 2022
Vifor Pharma, INC. $29.29 2022-2023 Veltassa
Novartis Pharmaceuticals Corporation $27.53 2024
Horizon Therapeutics Plc $26.23 2023 Krystexxa
Lilly USA, LLC $22.18 2024 Jardiance
Novo Nordisk INC $20.17 2024 Ozempic
Ardelyx, INC. $19.57 2023 Ibsrela
Calliditas Therapeutics US INC. $17.74 2023 Tarpeyo
Mallinckrodt Enterprises LLC $16.22 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

Sankar Narayan Niranjan

$3,188.50

in general payments reported 2019-2025

Years
2019-2025
Top company
Astrazeneca Uk Limited
Context
The $122 reported for 2025 was less than what a typical Nephrology (Internal Medicine) provider received nationally (typical 2025 total: $311).

https://glasscript.com/doctor/112796/sankar-narayan-niranjan

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.