Child Development Center and Child Therapists Near You PediaPlex is an autism spectrum disorder-specialty practice led by Sonia Kirkpatrick, MBA, and her expert team, with locations in Southlake, Alliance, Fort Worth, and Frisco, Texas. Ms. Kirkpatrick was inspired to open the practice after her daughter was diagnosed with autism. PediaPlex is a collaborative center that encompasses all therapies to reduce the severity of autism spectrum disorder symptoms and help children thrive better at school, at home, and in interpersonal relationships. The practice offers applied behavior analysis (ABA) therapy, CentralReach ABA software, speech therapy, occupational therapy and more—all in one location.