Clinical Staff

Steven Barnett

Steven is a Licensed Professional Counselor who has provided both individual and group therapy for a diverse clientele in a variety of settings. He earned a master’s degree in counseling from Southern Methodist University with a dual focus on individual and family therapy. He also has a bachelor’s degree in philosophy from the University of North Texas. Steven believes strongly in the maxim, “be the person you needed as a kid” and enjoys working with adolescents.

Steven is a husband, father to a young son, and a lifelong musician. He enjoys spicy food, goofy humor and old movies.

Julie Dyer

Julie Dyer is a therapist at Vanguard Preparatory School and is a Licensed Professional Counselor. She is responsible for group therapy and crisis management within the school. Julie has been with Vanguard since 2007 and has worked with children and teens in a therapeutic setting since 2003. She is most interested in helping children feel successful in their environment and also to learn more about themselves and how to collaborate with others. Julie graduated with a Masters Degree in Science in Clinical Psychology from Radford University in Virginia.

Kevin Goodnight

Kevin Goodnight is our Director of Family Services and Training. He provides parent education and support for the Vanguard community, develops home programs for families as needed and provides ongoing staff development classes.  Kevin has a Bachelor’s Degree in Human Development and Family Studies from Texas Tech University, a Master’s Degree in Psychology specializing in Applied Behavior Analysis, and is a Board Certified Behavior Analyst. He has a wealth of knowledge and experience as he’s been working with children with developmental disabilities or autism for over twenty years.

Selena Harrell

Selena is a Certified Therapeutic Recreation Specialist (CTRS) and holds a Bachelors of Sciences in Therapeutic Recreation from Longwood University in Farmville, Virginia. Currently she is pursuing her Master’s in Marriage and Family Counseling at Liberty University.

She has three years of experience in facilitating recreational interventions with children, adolescents, and adults with mental health and social barrier challenges. Her primary goals are to focus on providing tools for each student to become more successful by reducing stress, anxiety, redirecting their affect, building confidence and positive self-esteem through healthy socialization.
Selena has served 6 years in the United States Army. After servicing in the military, she now aspires to work with disabled veterans and their families, advocating for more Therapeutic resources, and utilizing adventure therapy with psychotherapy. She has found passion in helping others who might not understand or ask for help because of society stigmas concerning their disabilities. She hopes to use Recreation Therapy as part of a holistic approach to solving multicultural problems in marriage and family counseling. In her free time, Selena enjoys salsa dancing, training her dog Lolex in completing his Therapy Dog training, and serving on the Student Ministry team at her church mentoring students.

Mari Ordonez

Mari is our dedicated lower school counselor .​She graduated with one Bachelor’s Degree in Child Development and another in Psychology from the University of Texas at Dallas. She also has a Master’s Degree in Counseling with child and adolescent specialization from Southern Methodist University.

Janette Warne

Janette Warne has a master’s degree in speech-language pathology and over 20 years experience treating communication disorders in medical, educational, and university settings. Her primary areas of interest are diagnostics, phonology/highly unintelligible speech, and language-literacy. Janette is also a Vanguard mom and she is committed to helping families discover the difference Vanguard can make for their children.

Jason Mishalanie

Ph.D., Psychological Testing, Neurofeedback and Clinical Program Advisor

Jason F. Mishalanie, Ph.D. is a Licensed Psychologist and a Clinical Advisor for Vanguard Preparatory School. Dr. Mishalanie is also the Clinical Director of Neurotherapies with the Vanguard Center for Neurological Health. He is BCIA board certified in neurofeedback and has over 18 years of experience in the field. Dr. Mishalanie is trained in the assessment, diagnosis, and psychological treatment of children, adolescents, and adults. He has over 24 years of experience in the mental health field and has worked with diverse populations to include people with chronic mental illness, developmental disorders, and traumatic brain injury. Dr. Mishalanie is also trained in individual and family therapy, behavioral and cognitive-behavioral treatment modalities, neuropsychological assessment, QEEG, EEG Neurofeedback, neurostimulation, and Low Energy Neurofeedback System (LENS). Dr. Mishalanie has also served as a Forensic evaluator for the Dallas County courts to include child custody and competency evaluations.

Dr. Mishalanie graduated with his Ph.D. in Physiological Psychology from Texas Christian University, and holds two Masters degrees in Clinical and Experimental Psychology. During his doctoral training, Dr. Mishalanie was trained in the area of recovery of function following brain injury while at TCU, as well as EEG evoked potential recording and analysis at the University of Texas, Medical Branch in Galveston. After serving for 10 years as the Chief Psychologist of the Developmental Disabilities division at Metrocare Services in Dallas, Dr. Mishalanie founded Peak Neuroscience, LLC in order to provide neurotherapy and psychotherapy to children and adults with a wide array of difficulties including autism, ADHD, depression, anxiety, brain injury, attachment, and speech disorders.


Parent/Teacher Conferences
October 29-30

Parent Support Group
Thursday, November 12th

Parent Education Classes
November 17th & 19th

Thanksgiving Break/No School
November 23-27

Vanguard Preparatory School

4240 Sigma Road Dallas, TX 75244

Accredited By Southern Association Of Colleges And Schools - AdvancED | TEA Approved

Copyright @ 2020 Vanguard Preparatory School | All Rights Reserved

(phone) (972) 404-1616
(fax) (972) 404-1641