Dr. Stephen Posluszny, MD, grew up in northern New Jersey and pursued his undergraduate education at the University of Notre Dame. Subsequently, he attended medical school at the University of Cincinnati. His postgraduate training included a residency and a chief resident year at Rainbow Babies and Children's Hospital.

Following this, Dr. Posluszny dedicated five years to practicing general pediatrics in the outpatient setting in suburban Cleveland. While he enjoyed his time there, he eventually moved back to New Jersey with his wife to establish their family. Before joining Cortica, he continued his practice in general pediatrics in the Princeton area. In his spare time, Dr. Posluszny enjoys golfing, watching Notre Dame football, and spending quality moments with his wife and two boys.