201 Glenwood Road, Elkins Park, PA 19027, US

(267) 636 9770

Welcome to Cornerstone Psychological Services

About provider


Sunghye Sin, PsyD., is a PA licensed clinical psychologist and certified school psychologist. She is also an ADHD-CCSP.  At Widener University, she earned a master’s degree in clinical psychology and school psychology, and then went on to receive her doctorate in psychology, also at Widener.  Dr. Sin has over ten years of clinical experience; she has worked with children (starting from 15 months), adolescents, adults, and families.    

Earlier in her career, Dr. Sin worked as a special education teacher and also psychotherapist before earning her doctorate. She received her master’s degree in counseling at Biblical Theological Seminary. 


Dr. Sin worked as a staff psychologist at SPIN, Inc (Special People In Northeast), the Autism Center of Excellence. Her experience also includes inpatient/outpatient behavioral health clinics and school settings. She has diagnosed children as young as 15 months old for autism spectrum disorder.  

She specializes in autism, ADHD, Depression, Anxiety, trauma, self-regulation issues, anger management, executive coaching and toilet training and sensory integration challenges. 


Early Childhood Playgroup

Play is an essential part of socialization. Children make friends as they play together. Having appropriate play skills is vital, so the group provides direct opportunities for children (age from 1.5 to 4 years) to learn play skills. Children on the spectrum used to play by themselves and ignore others. Dr. Sin has excellent abilities to lead disengaged children to participate in activities with other children with their parents' involvement. Dr. Sin led several early childhood playgroups at  SPIN and received a lot of positive feedback from parents.  



Initial Phone Consultation is available. For inquiries,  please call  or leave a message at 

                                      267 636 9770