Is it Really Autism or Something Else?

with Dr. Whitney Geller and Dr. Neilson Chan

Is it Really Autism or Something Else?

Episode 17, Season 5 | April 10, 2025

Show Notes

Autism diagnoses have increased in the last several years. Why is that? Join us as we explore the nuanced world of neurodevelopmental disorders and how several conditions can present with symptoms that mimic autism spectrum disorder. Our CHC expert licensed psychologists, Whitney Geller, PhD and Neilson Chan, PhD, discuss the core features of autism—social communication challenges, restricted interests, and repetitive behaviors—while examining why diagnosis rates have risen dramatically in recent years. Listen in as we talk about how other conditions like ADHD, anxiety disorders and more can sometimes be mistaken for autism due to overlapping behavioral presentations.

Guest Info

Whitney Geller, PhD, is a licensed clinical psychologist with specialization in pediatric neuropsychology. She is well versed in conducting neuropsychological, neurodevelopmental, psychological, and educational evaluations to answer questions for families about cognitive ability, development, and emotional wellbeing. Dr. Geller utilizes a whole person approach to assessment, spending time with the family and individually with the child to gain a complete picture. Evaluations are focused on identifying strengths and weaknesses to provide comprehensive feedback to families including diagnostic impressions and personalized recommendations. Feedback is aimed to help families understand the child’s needs and the best ways to provide support for the child at home and in school.


Neilson Chan, PhD is a licensed psychologist who is passionate about supporting the mental health of youth and their families. He earned his PhD in Clinical Psychology from Loma Linda University, and completed his predoctoral clinical residency at UCSD/Rady Children’s Hospital Department of Psychiatry. He then completed a postdoctoral research/clinical fellowship at Loma Linda University Department of Psychology. In his research, Dr. Chan is particularly passionate about better understanding and treating co-occurring psychiatric conditions among individuals on the autism spectrum, and has published his research in various peer-reviewed journals and given presentations at numerous national conferences.