At Jigsaw, relationships come first. Supporting families remains at the forefront of what drives us every day. Our mission is to provide the highest quality diagnostic and supportive services for childhood neurobehavioral conditions. We strive to streamline the process, reduce family burden and stress, and ultimately make the most impact for children during the critical early years of brain development.

Meet the Diagnosticians

Bernice Joo

President of Diagnostic Services
Clinical Psychologist
CA PSY23103

Dr. Bernice Joo is a Clinical Psychologist specializing in developmental, psychoeducational, and neuropsychological evaluations for all ages. She obtained her Ph.D. from the University of Virginia and completed her internship and a 2-year fellowship at USC Children's Hospital Los Angeles, where she had extensive training in developmental disabilities, ADHD, behavioral issues, trauma, anxiety, depression, parent training, and consultations with schools. Prior to joining Jigsaw, Dr. Joo worked for 10 years as part of several multidisciplinary teams conducting evaluations for Autism and other developmental disabilities. She then served as a Clinical Director of a tele-assessment company specializing in dyslexia, ADHD and other learning differences.

Ashley Berry

Director of Diagnostic Services
Clinical Psychologist
CA PSY28987

Dr. Ashley Berry is a licensed clinical psychologist trained in the assessment, diagnosis, and treatment of autism spectrum disorder, ADHD, complex trauma, and developmental delays in children. Through her APA accredited graduate program and internships, she gained valuable experience working as part of multi-disciplinary child assessment teams alongside developmental pediatricians, neuropsychologists, speech and language therapists, and occupational therapists. Dr. Berry’s prior child and adolescent assessment experience includes the San Andreas Regional Center, sub-contracting for Kaiser Permanente, Casa Pacifica Centers for Children and Families, Catalpa Health, and The Marshfield Clinic.

Dr. Lindsay Wray, Clinical Psychologist

Lindsay Wray

Clinical Psychologist
CA PSY30954

Dr. Lindsay Wray specializes in psychological assessment for children, adolescents, and adults. She conducts comprehensive psychological, cognitive, academic, attention, executive function, behavioral, accommodations, and autism evaluations with individuals facing a wide range of psychological and psychoeducational challenges. Dr. Wray is a posdoctoral fellow at the Reiss Davis Child Study Center, and has taught psychological assessment, including cognitive, academic, and personality/emotional assessments, to doctoral level graduate students as an adjunct faculty member. Dr. Wray received her Doctor of Psychology in Clinical Forensic Psychology from The Chicago School of Professional Psychology.

Dr. Christine Rivera, Clinical Psychologist

Christine Rivera

Clinical Psychologist
CA PSY30691

Dr. Christine Rivera is a bilingual (Spanish and English) and bicultural clinical psychologist who specializes in psychological assessments for young children. She conducts assessments with concerns related to developmental challenges, attention, cognition, academics, behavioral challenges, and autism. She utilizes a therapeutic assessment approach that allows families to talk through challenges and learn methods that will best support them. The goal of each assessment is to walk away with a roadmap and clarity. Dr. Christine received her Doctor of Psychology from Azusa Pacific University with an emphasis in Family Systems.

Dr. Brooke Davidson, Clinical Psychologist

Brooke Davidson

Clinical Psychologist
CA PSY31050

Dr. Brooke Davidson is a clinical psychologist licensed in California and Tennessee. Dr. Davidson received her doctorate from Alliant International University and has worked in a variety of settings including treatment centers, schools, and out patient clinics conducting both treatment and comprehensive psychological evaluations. Dr. Davidson specializes in psychological testing in children and adults, both in-person as well as via tele-health.  Her areas of expertise include a focus on autism spectrum disorder,ADHD, and learning disabilities.

Dr. Sami Klebanoff, Clinical Psychologist

Sami Klebanoff

Clinical Psychologist
CA PSY34204

Dr. Sami Klebanoff is a licensed psychologist with over 15 years of experience assessing and treating children and families. Dr. Klebanoff received her PhD from UCLA in Educational Psychology and specializes in psychological assessment of children and adolescents. Dr. Klebanoff has worked in home, school, and clinic settings with individuals with a variety of learning difficulties, behavioral/emotional challenges, and developmental delays. Dr. Klebanoff’s primary specialty lies in performing comprehensive, targeted evaluations that allow families to address their needs and find solutions.

Dr. Laura Miranda-Olivera, Clinical Psychologist

Laura Miranda-Olivera

Clinical Psychologist
Psychological Associate

Dr. Miranda Olivera is a registered psychological associate at the postdoctoral level with extensive experience in case management, assessments, and intervention. She holds an Associate’s in Curriculum Development, a Bachelor’s in Psychology, a Master’s in Neuroscience, and a Doctorate in Clinical Psychology. She completed graduate certifications in Educational Therapy and Evaluation, as well as Developmental Disabilities and Early Intervention. Dr. Miranda Olivera completed specialized practicums in Neurofeedback, Behavior Analysis, and neuropsychological testing. Dr. Miranda Olivera has administered in-person and virtual pediatric assessments for the Frank Lanterman Regional Center and while sub-contracting for Kaiser Permanente in Pasadena, California. Additionally, she completed a post-graduate fellowship in Leadership Education in Neurodevelopmental and related Disabilities (LEND).

Rachel Fein

Clinical Psychologist
CA PSY34184

Dr. Rachel Fein is a Child Psychologist and Board Certified Behavior Analyst who specializes in early childhood assessment of autism and other neurodevelopmental conditions. She obtained her Ph.D. from the University of Houston and completed her pre-doctoral internship and her post-doctoral fellowship at Baylor College of Medicine/Texas Children’s Hospital. Dr. Fein has spent the last five years conducting autism-focused assessments both in-person and via telemedicine. Dr. Fein is passionate about providing culturally informed assessment and intervention as well as partnering with and empowering families.