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NEMSIS releases 2023 Public-Release Research Dataset

Data from over 50 million EMS activations were submitted by over 14,000 agencies serving 54 states and territories

By Bill Carey

SALT LAKE CITY — The National Emergency Medical Services Information System (NEMSIS) Technical Assistance Center released the 2023 Public-Release Research Dataset, the largest dataset of U.S. emergency medical service activations available to the public.

The 2023 Public-Release Research Dataset, part of the National EMS Database, includes data from 54,190,579 EMS activations provided by 14,369 agencies across 54 U.S. states and territories, the agency stated in a press release. Managed by NEMSIS, this dataset adheres to national standards for collecting patient care information following emergency 911 medical calls.

“We are thankful for the EMS clinicians who devote themselves to delivering vital medical care, the cornerstone upon which this dataset is built,” Dr. N. Clay Mann, Professor in the Department of Pediatrics at the University of Utah School of Medicine and Principal Investigator for the NEMSIS Technical Assistance Center said. “Their passion and resilience shape our strategies for health care improvements. Through this dataset, we aim to empower better clinical decisions and foster significant advancements in patient care.”

To obtain a copy of the 2023 Public-Release Research Dataset, contact the NEMSIS TAC and complete a request form on their website at Upon submission, a link to the dataset and accompanying materials will be provided.

The National Emergency Medical Services Information System (NEMSIS) is a national database and health information exchange that collects EMS data from states and territories. It sets the standard for documenting patient care information from emergency 911 medical calls. NEMSIS aims to enhance patient care by standardizing and using EMS data at local, state, and national levels. It is managed by the National Highway Traffic Safety Administration’s Office of EMS.