The National ED Inventories (NEDI) are ongoing surveys that contain data on all EDs in a specific country/state/city, including facility location and annual visit volume. Each inventory was developed through collaboration of a Country/State/City Coordinator with EMNet staff.
U.S. Surveys
NEDI-USA: 2001, 2003, 2005, 2007, 2009, 2011, 2012, 2013
Annual Surveys: 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, and 2024
NEDI-New England: 2014 and 2018 (CT, MA, ME, NH, RI, VT)
NEDI-State: 2005 (MA), 2008 (CO, GA, MA, OR), 2009 (AR, HI, MN, VT, WY), and 2021 (CA)
NEDI-Indian Health Service: 2014
To learn about other ED inventory projects around the globe, visit the NEDI-International page here.
To learn about rural U.S. ED closures and openings since 2001, click here.
To learn about the applications of NEDI data in community projects, visit the Community page here.
If you have any questions about the NEDI projects, please contact us at emnet@partners.org.
If you are interested in obtaining NEDI data or services, they may be available for purchase. Please contact us via the EMNet Health Services Research Core to inquire about purchasing NEDI data or services.