Executive Leadership

Sandi Kiser-Griffith, Psy.D., Chief Executive Officer

Executive Director

Sandi Kiser-Griffith is the Executive Director of Diversified Assessment and Therapy Services, and a Licensed Clinical Psychologist. She received her BA, MA and Psy.D degrees from Marshall University, after completing a Doctoral Internship at University Psychiatric Associates. Sandi has an extensive background in intervention.

She is contracted with many different agencies throughout the state and her area of expertise/interest includes assessment and early intervention strategies for children with Autism Spectrum Disorders.

She is a member of Applied Behavioral Analysis International and was previously recognized as an approved continuing education provider for the American Psychological Association.

Sandi is a lifelong resident of Kenova, WV.

Kristy Ellison, Psy.D., Chief of Operations

Chief of Operations

Kristy Ellison joined Diversified Assessment and Therapy Services in 2005 as a Supervised Clinical Psychologist. She received her BA,  MA, and Psy.D degrees from Marshall University. 

Kristy’s experience directing statewide training initiatives for early childhood programs in WV, administering independent living programs for at-risk teen and homeless individuals, and providing assessment and behavioral support services to individuals with autism and other developmental disorders, provides her with a wide range of knowledge and expertise.

Josh Caldwell, Chief of Business Operations

Josh Caldwell, Chief of Business Operations