Jennifer Katzenstein, PhD

Dr. Gardner is the psychology internship director and administrative director of the Autism Program at Johns Hopkins All Children’s Hospital. She has provided services for children and families with a wide range of concerns, including noncompliance, autism spectrum disorder, developmental disabilities, depression, anxiety and social skills deficits. Dr. Gardner’s clinical interests include neurodevelopmental disabilities. She earned her doctorate degree from Indiana University Bloomington and completed an internship in psychology at the University of Tennessee Health Science Center and a fellowship in developmental/behavioral pediatrics at the Boling Center for Developmental Disabilities.

Dr. Fritz is a pediatric psychologist in the Johns Hopkins All Children’s Institute for Brain Protection Sciences. She joined the hospital staff in 2018. Dr. Fritz provides evidence-based interventions for pre-school and early childhood disruptive behavior disorders.She also specializes in the evaluation and treatment of children and adolescents diagnosed with chronic and/or acute medical conditions in combination with additional concerns (e.g., anxiety, depression, treatment adherence, phobias) in outpatient settings.Dr. Fritz earned her doctorate in clinical psychology from the University of Florida. She completed an internship and then a post-doctoral fellowship in psychology at Texas Children’s Hospital/Baylor College of Medicine in Houston, Texas.

Dr. Butt is a neuropsychologist at Johns Hopkins All Children’s Hospital. She joined the hospital staff in 2019. Some of Dr. Butt’s areas of clinical expertise include neuropsychological evaluations and consultations for children in the neonatal intensive care unit and pediatric intensive care unit.