Meet Our Clinicians

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Dr. Rosnov-Castelar is a Licensed Clinical Psychologist and the practice owner. She earned her Master’s Degree in clinical psychology from Western Carolina University. She, then, went on to earn her doctoral degree in clinical child psychology from the University of Kansas and completed her internship and post-doctoral training at the Alfred I. duPont Hospital for Children in Wilmington, Delaware.   Although she considers her specialty area to be providing therapy and comprehensive evaluation services to children and adolescents, Dr. Rosnov-Castelar also enjoys working with young adults. Dr. Rosnov-Castelar has worked in a variety of settings including private practice, schools, outpatient community mental health centers, children’s hospitals, and primary care offices. Working in these diverse venues has allowed Dr. Rosnov-Castelar to gain experience and expertise in treating children, adolescents, and adults with a broad range of psychological issues including anxiety, depression, ADHD/behavior disorders, autism spectrum disorders, mood disorders, grief, and adjustment to parent separation/divorce, among others. Dr. Rosnov-Castelar approaches therapy primarily from a cognitive-behavioral and/or developmental perspective. In addition to providing individual therapy services, Dr. Rosnov-Castelar conducts comprehensive psychological and psycho-educational evaluations.     

Alexandre Fleche is a Licensed Clinical Social Worker with more than seven years of direct clinical experience and more than three years of program development and management experience. He has worked in community mental health, primary care, and psychiatric hospital settings. Alexandre obtained postgraduate supervision in Bowen Family Systems Theory to complement his evidence-based clinical skills in Cognitive-Behavior Therapy, Dialectical Behavior Therapy, Motivational Interviewing, and brief solution-focused therapies. Over the past few years Alexandre developed and managed the Choices Adolescent Intensive Outpatient Program at Dominion Hospital, the first Dominion Hospital program in Loudon County. Alexandre enjoys working with adolescents, adults, families, and couples.