Deputy Chief Mark Cristaldi Jr.
Deputy Chief Mark Cristaldi Jr. began his career with the St. Lucie County Fire District in 2002. He holds an Associate of Arts degree in Emergency Medical Services from Indian River State College, a Bachelor of Science degree in Fire Science from Columbia Southern University, and a Master of Science degree in Occupational Leadership from Columbia Southern University. Throughout his career, Chief Cristaldi has served on numerous Fire District committees, including the EMS Guidelines Committee, EMS Operations Committee, Strategic Planning Committee, Medical Review Board, Safety Committee, and Communications Committee.
As Deputy Chief, Chief Cristaldi oversees the Logistics, Fleet Maintenance, Facilities, Personal Protective Equipment (PPE), Community Risk Reduction, and Insurance Services Office (ISO) divisions. He provides leadership and direction to Division Chief Mike Walker and Division Chief Wayne Boyer in support of these functions. His responsibilities also include grant development and administration, policy and procedure development, strategic planning, budget management, data analysis, leadership development, and organizational improvement initiatives. He works collaboratively with all divisions to support the efficient delivery of fire rescue and emergency medical services throughout the District.
Deputy Chief Donny Stefani began his career with the St. Lucie County Fire District in 2000. He holds a Bachelor of Science degree in Fire Science from Waldorf University and an Associate of Science degree in Fire Science from Columbia Southern University. Throughout his career, Chief Stefani has served in a variety of leadership and operational roles, including Division Chief, Battalion Chief, Special Operations Captain, Company Officer, and Special Operations Driver. He is a published author, with an article featured in Fire Engineering magazine in March 2015, and is a certified Fire Instructor III who regularly delivers training programs throughout the State of Florida.
As Deputy Chief of Operations, Chief Stefani oversees all aspects of the District’s emergency service delivery, including fire suppression, emergency medical services, aeromedical response coordination, special operations, and communications. He provides leadership and direction to operational personnel to ensure the highest levels of service, preparedness, and safety for both the community and Fire District personnel. His responsibilities include operational planning, resource management, personnel development, budget oversight, and the coordination of emergency response activities throughout the District.