Dennis Merrigan

fentanyl epidemic community risk reduction nuisance fires Dennis Merrigan Philadelphia Fire Department

Before he retired in 2026, Division Chief Dennis Merrigan PhD. was a 34-year veteran of the Philadelphia Fire Department. His most recent assignment was chief fire marshal. Merrigan completed his PhD. in fire and emergency management and a post-graduate certificate in international emergency management from Oklahoma State University. He also completed a post-graduate certificate in terrorism studies from John Jay College of Criminal Justice.