Epic Cosmos

Epic Cosmos is a large-scale EHR database built from data contributed by organizations using Epic.
As of 2025:

• 200 institutions have shared longitudinal data

• 300 million individuals represented

• Includes Baylor Medicine and Texas Children’s Hospital

• Records linked across health systems for comprehensive research

Cosmos uses a streamlined Epic Caboodle model with fact and dimension tables.
All data is de-identified:

• No unstructured data (notes, imaging, test results)

• Dates are time-shifted for longitudinal analysis

An encyclopedia of available data (Baylor Epic credentials required) includes:

• Demographics

• Encounters

• Diagnoses

• Procedure occurrences

• ICU events

• Vital signs

• Medication orders, fills, and administrations

• Social drivers of health (SDOH)

• Surveys and patient-reported outcomes

Tier 1: SlicerDicer

• Epic’s graphical interface for generating descriptive statistics

• Ideal for summarizing and exploring data

• Requires completion of a free self-study module

Tier 2: Line-Level Access via Citrix Cloud

• Secure environment with tools like SQL Server Management Studio and RStudio

• Enables data extraction, processing, and statistical analysis

• Requires a two-day virtual training class (Epic-organized, fee applies)

Access can be requested through the ServiceNow form (Baylor credentials required).