Neuropsychology Team
Sakina Butt, PsyD, ABPP
Neuropsychology
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. Dr. Butt earned her medical degree from Florida School of Professional Psychology, Argosy University in Tampa, Florida. After graduating from Argosy, she completed a pediatric internship and fellowship at the University of Miami/Miller School of Medicine. Dr. Butt is board certified in pediatric neuropsychology and clinical neuropsychology.
Colleen Hess, PhD
Neuropsychology
Dr. Hess is a neuropsychologist at Johns Hopkins All Children’s Hospital. She joined the hospital staff in 2021. Her clinical expertise includes neuropsychological evaluations and consultations for children with cancer and brain tumors. Dr. Hess earned her doctoral degree from Florida State University in Tallahassee, Florida. She completed a clinical psychology internship at the University of Florida Health Science Center/Shands Hospital in Gainesville, Florida, followed by a fellowship in clinical psychology at Rothman Center for Pediatric Neuropsychiatry/University of South Florida in St. Petersburg, Florida. Dr. Hess then completed a pediatric neuropsychology fellowship at Johns Hopkins All Children’s Hospital.
Jennifer Katzenstein, PhD, ABPP
Neuropsychology
Dr. Katzenstein is the director of psychology, neuropsychology and social work, at Johns Hopkins All Children’s Hospital. Previously, Dr. Katzenstein was a private practitioner and Assistant Professor of Neurology at Indiana University School of Medicine/Riley Hospital for Children in Indianapolis where she provided neuropsychological evaluations, consultations and academic coaching for children and adolescents. After graduating from Indiana University Purdue University Indianapolis, she completed a pediatric internship and fellowship at Texas Children's Hospital/Baylor College of Medicine. Dr. Katzenstein is board certified in pediatric neuropsychology and clinical neuropsychology.
Danielle Ransom, PsyD, ABPP
Neuropsychology
Dr. Ransom specializes in neuropsychology at Johns Hopkins All Children’s Hospital. She joined the medical staff in 2019. Before joining Johns Hopkins All Children’s, Dr. Ransom was an assistant professor at the University of Miami Miller School of Medicine where she co-directed the Pediatric Concussion Clinic and developed the neuropsychology arm of the Sports Concussion Clinic.
Kyle Srnka, PhD
Neuropsychology
Dr. Srnka is a pediatric neuropsychologist in the Center for Behavioral Health at Johns Hopkins All Children’s Hospital. He earned his Doctor of Philosophy degree in clinical psychology at Rosalind Franklin University of Medicine and Science, North Chicago, Illinois. He completed his clinical psychology internship and pediatric neuropsychology fellowship at Johns Hopkins All Children’s Hospital. He also completed advanced pediatric neuropsychology training at the Medical College of Wisconsin as well as an inpatient consultation-liaison practicum in medical neuropsychology at Northwestern University Medical Center.
Lauren Irwin Harper, PhD
Neuropsychology Fellow - Second Year
Paulina Feghali, PhD
Neuropsychology Fellow – First Year
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