El Paso, the newest site to join the IMMEDIATE Trial, started enrolling patients in February 2009. El Paso Fire Department EMS is the provider of mobile intensive care unit care for the City of El Paso. The 130 paramedics serve a population of approximately 712,000 and cover over 248 square miles. The 21 ambulance units and five paramedic pumpers provide 911 response and patient transportation. Patients are transported to six receiving hospitals in the city of El Paso: Thomason Hospital, Del Sol Medical Center, Las Palmas Medical Center, Sierra Medical Center, Providence Memorial Hospital and Sierra Providence East Medical Center.

The paramedic team is led by Medical Deputy Chief, Janet Walker and Medical Lieutenant, Larry Rascon of the El Paso Fire Department. The research team is located at Texas Tech University Health Sciences Center and includes Susan Watts, Adolph Ulloa, Todd Haugen, Gloria Soto, Sally Morales, and Site PI, Dr. Robert Woolard. Each month, the paramedics screen on average 250 patients and enroll six to seven patients into the IMMEDIATE Trial.