… Area of Expertise Rehabilitation Catherine Leslie, PhD, OTR/L, CEIS Graduating from the IHP with a PhD, Catherine Leslie is now an Assistant Professor . About … Bachelor of Arts in Interdisciplinary Studies and Master of Occupational Therapy from Bay Path University in Longmeadow, MA. She received her PhD in Rehabilitation … Area of Expertise Rehabilitation Catherine Leslie, PhD, OTR/L, CEIS Graduating from the IHP with a PhD, Catherine Leslie is now an Assistant Professor . About …