Clinical Data Warehouse (CDW) Navigator Support

This service is provided by the Biomedical Informatics Resource.


The Clinical Data Warehouse (CDW) contains clinical information for over 4.5 million individuals treated at Columbia University Irving Medical Center (CUIMC) since the 1980s. With appropriate security safeguards and approval from the Institutional Review Board, investigators can request information such as demographic data; physician orders; laboratory, radiology, pathology, and other reports; structured and free-text clinical documents; and nurse flowsheets and task lists. Data requests are approved and prioritized by the Tripartite Request Assessment Committee (TRAC).

The Irving Institute provides consultations with a CDW navigator who can help organize and fulfill CDW data requests. Based on resource availability, a CDW navigator will be assigned to assist in creating an efficient TRAC request, and/or to assist in the fulfillment of an approved request. The CDW navigator support is useful for researchers who have specific questions on counts or cohort definition, or are preparing to create a TRAC request for clinical data.

Starting in March 2020, we are also providing consultations for COVID-19 research. 


The service is open to all researchers at Columbia University Irving Medical Center (CUIMC). A simple request for cohort counts usually does not require an approved IRB study. A request for clinical data requires both approved IRB study and an approved TRAC request.


There is no cost for this service. Some requests may be too complex to be solved by the CDW navigator, and may not be fulfilled.

Cite it, Submit it, Share it!

If your research has benefited from one or more Irving Institute resources, please remember to:

  • Cite our CTSA grant, UL1 TR001873, in any relevant publications, abstracts, chapters, and/or posters.
  • Submit your publications to PubMed Central (PMC) for compliance with the NIH Public Access Policy.
  • Share your research updates with us by sending an email to:


Clinical Data Warehouse Navigator
622 West 168th Street, 10th Floor
New York, NY 10032
United States