Dennis is a Licensed Professional Counselor of Mental Health, a Nationally Certified Counselor, a Board Certified Expert in Traumatic Stress, and a Diplomate for the American Academy of Experts in Traumatic Stress. 

Currently, he is the Executive Director of New Perspectives, Inc., a private counseling agency in Delaware, and served on the faculty of Penn State University, Brandywine Campus, for 15 years. He is a Vice President and Principal Consultant for SSC Consulting.  Dennis is a trained trainer for Crisis Care Network.  He is the President and CEO of the Trauma Survivors Foundation.  He serves on three international trauma firms.  He is a published author with titles such as “Beyond the Call: A First Responder’s Guide to Unbreakable Well-Being”, “The First Responder's Guide to Self-Care and Resilience”, and “Own Your Bullshit!”.

Dennis is a former Nationally Registered Emergency Medical Technician and a former Emergency Medical Technician with the state of Delaware. He is a former volunteer Fire Fighter.  Dennis serves as a LAST member for the National Fallen Firefighter Foundation in conjunction with the National Fire Academy.  He is the clinical director and team coordinator of the New Castle, Kent, and Sussex County CISM teams as well as the Wilmington Police, New Castle County Police, Newark Police, and Upper Darby Police CISM teams, the AI DuPont CISM team, and the State of Delaware CISM team. Dennis is the State CISM Chairman for the Delaware Volunteer Fireman's Association. He is the the former President of the Wilmington West Rotary Club. He is listed in the National Center for Crisis Management’s directory of expert witnesses and premiere speakers bureau. 

He has attended Millersville University, Temple University, and Walden University.  Dennis has conducted numerous debriefings in domestic as well as international disasters, shootings, bombings, bank robberies, corporate incidents, school disasters, and Fire, EMS, Police tragedies including, but not limited to, the attacks on the WTC in NYC, the Hurricane Katrina and Hurricane Sandy relief efforts, the Sandy Hook Elementary School Shootings, the Boston Marathon Bombings, the DC Navy Yard shootings, the Paramus Park mall shootings, the Pulse Night Club shooting, the Hurricane Harvey Relief efforts, the Annapolis shootings, Las Vegas shootings, and the Capitol Building Insurrection.