ATLAS is a free, publicly available web-based, open-source, self-service query application developed by the OHDSI community. The ATLAS platform utilizes the OMOP Common Data Model to analyze Epic data from the Mount Sinai Health System. ATLAS supports database exploration, standardized vocabulary browsing, cohort definition, and population-level analysis. ATLAS is currently in beta release at Mount Sinai and is occasionally updated. Click here to see ATLAS’ Status and Roadmap.


ATLAS Accounts

All users must have their own ATLAS account. ATLAS is free to use and is available to all Mount Sinai users. Users must have a Mount Sinai School account to log in. Hospital users requesting School credentials may request a Mount Sinai School account through SailPoint. With Mount Sinai School credentials, users can navigate to https://atlas.msdw.mountsinai.org and begin querying. All users will have access to de-identified data within ATLAS.

To access PHI or datamart data within ATLAS:

  1. Log in to https://atlas.msdw.mountsinai.org to establish an account in the ATLAS directory
  2. Navigate to ATLAS’ Service Desk
  3. Select “Query Tool Access Request Form”
  4. Select Platform: “ATLAS” and corresponding Data Source
  5. Ensure a valid IRB is attached

Users will receive confirmation from the MSDW Team when their request has been enabled. The user’s next login to ATLAS will have access to the approved PHI data.


ATLAS Support Materials

The Mount Sinai Data Warehouse team encourages users to utilize the training and support materials publicly available:


ATLAS Features and Data

ATLAS utilizes OMOP standard concept IDs (currently contained within only the following clinical domains: conditions, procedures, visits, vitals measurements). All other domains can be queried using concepts in Epic vocabularies. Click here to learn more about MSDW Data Sources. ATLAS data types include:

  • Diagnoses
  • Procedures
  • Meds, labs, and orders
  • Patient demographics

Query turnaround time takes seconds. Users can query de-identified patient data through ATLAS, and users with a valid IRB can query PHI data. To see how ATLAS features compare to other MSDW query tools, click here for Services.

Compare ATLAS to our other self-service query tool, Leaf:



ATLAS Quick Links