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Request ATLAS Access

Get access to OHDSI ATLAS — Emory's web application for building cohorts, exploring vocabularies, and running standardized analyses on OMOP data.

What You'll Get

  • Cohort Building

    Define study populations visually with inclusion/exclusion criteria, temporal logic, and demographic filters.

  • Concept Exploration

    Search and navigate 7M+ standardized clinical concepts across SNOMED, RxNorm, LOINC, ICD10, and more.

  • Standardized Analyses

    Run characterization, incidence rate, and care pathway analyses directly in the browser.

  • Reproducible Designs

    Export cohort definitions as JSON to share with collaborators or deploy across OHDSI network studies.

Need direct SQL access instead?

If you want to query OMOP tables with SQL, Python, or R, see Request Database Access.

Prerequisites

Before submitting your request, confirm the following:

  • Emory VPN — connected and working1
  • Biomedical CITI training — completed within the last 3 years
  • Emory HIPAA training — completed

Request Access

All access requests are submitted through REDCap:

Open the Access Request Form

Step 1: Select Resources and Systems

Fill in your name and Emory email, then make the following selections: (1)

  1. The form dynamically shows follow-up questions based on your selections. Choose them in order from top to bottom.
Field What to Select
Which resources do you need access to? Databases, applications, and data lakes
Which application, database, or data lake? OMOP - Atlas
Which OMOP domain do you need? OMOP - EHC De-Identified

REDCap form showing the correct selections for ATLAS access to de-identified OMOP data

Need access to identified data?

Start with de-identified access first. Identified data requires additional approvals — including IRB protocol documentation — and is handled through a separate process. Contact the Data Solutions team for guidance.

Step 2: Provide a Justification

Describe your use case for the ATLAS tool. A brief statement is sufficient:

Exploring concept and cohort creation using the OMOP-CDM

Step 3: Upload Required Trainings

Confirm completion and upload certificates for both required trainings:

  1. Biomedical CITI training — completed within the last 3 years. Select Yes and upload your certificate.
  2. Emory HIPAA training — current. Select Yes and upload your certificate.

Step 4: Review the OMOP Terms of Data Use

Read the OMOP Terms of Data Use agreement carefully, then provide your electronic signature.

What does the Terms of Data Use cover?

The agreement covers appropriate use of the OMOP database, including data security requirements, disclosure restrictions, and compliance with Emory's HIPAA security and technical controls.

Step 5: Submit

Click Submit. The Data Solutions team will review your request and provision access.

After You're Approved

Once approved, access ATLAS immediately via VPN:

Open Emory ATLAS

New to ATLAS? Start here:

  • Emory Training

    Emory-specific tutorials covering our ATLAS instance and local conventions.

    Training Resources

  • OHDSI Documentation

    Official ATLAS documentation from the OHDSI community.

    OHDSI ATLAS

Questions?

Reach out via the support channels on the Contact Us page.

  1. Verify your VPN by navigating to the Emory ATLAS Instance. If the page loads, you're connected. ↩