Our Clinical Team
Meet Cornerstone’s passionate, caring, and compassionate staff.
Karen Williams, LPC
Clinical Director
Karen is a Licensed Professional Counselor who specializes in Addiction Treatment, EMDR, and Family Systems at Cornerstone in Scottsdale, AZ. Karen has a Master’s Degree in Professional Counseling from GCU and 15 years of experience in addiction recovery, mental health, and behavioral treatment.
Lionel Estrada, LISAC
CLINICAL LEAD
Lionel is a fully trained EMDR therapist that has dedicated his life to helping those with substance use disorders. Lionel has worked with many addiction treatment programs in Arizona before finally landing what he considers his dream job as a primary therapist at Cornerstone Healing Center in Scottsdale, Arizona.