07/12/2021: eRAP User Survey and Feedback is now live. To review, click here.

07/08/2021: To access the real-time de-identified COVID data set, click here.

12/17/2020: Mount Sinai Data Warehouse Town Hall Meeting slides available here.

07/16/2020: Starting July 13th, 2020, custom data warehouse queries will be subject to a $180/hour fee.

All publications need to include the following language in the acknowledgments section: “This work was supported in part through the Mount Sinai Data Warehouse (MSDW) resources and staff expertise provided by Scientific Computing at the Icahn School of Medicine at Mount Sinai.” See Data Use Agreement.

The MSDW team offers a comprehensive list of data services. Begin your research with any of the following software tools.

Cohort Query Tool

The Cohort Query Tool (CQT) is an easy-to-use, self-service web app available to the research community at Mount Sinai to query the MSDW.



The i2b2 web application provides self-service access to a de-identified data mart maintained by the MSDW team.


A web-based integrated platform for database exploration, standardized vocabulary browsing, cohort definition, and population-level analysis.


Data Dictionary

The Data Dictionary illustrates transactions and data points that are collected from each source. This resource assists understanding of available data.


TriNetX is a is a web-based cohort query tool that enables researchers to collaborate with peers. Users must request an account here to get started.


Leaf is a lightweight, self-service query tool using an intuitive, drag-and-drop interface to query patient data. This tool can be used for Research or QI.