Who we are
Guiding You Toward Mental Wellness and Growth
At Core Spring Diagnostics, we provide comprehensive psychological and neuropsychological evaluations for children, teens, and adults. Our goal isn't just to provide a diagnosis. It's to help you better understand yourself or your loved one, giving you the clarity, direction, and confidence to move forward with the right support.
Every person has a unique story, and every evaluation should reflect that. That's why each evaluation is handled by one psychologist from start to finish, allowing for a truly personalized approach. We take the time to understand each individual's strengths, challenges, and experiences, so you're not left with just a diagnosis, but a deeper understanding of what it means and where to go from here. Our goal is for every family to leave with meaningful answers, practical recommendations, and the confidence to get the proper care and support they deserve.

Gold-Standard Diagnostic Tools
We use clinically validated, gold-standard tools to ensure every diagnosis is accurate, reliable, and rooted in the latest psychological science.
Why Families and Individuals Trust Core Springs Diagnostics
We use gold-standard tools backed by science to ensure diagnostic accuracy every time.
Evaluations are tailored to your age, needs, and personal concerns. Never one size fits all.
We deliver timely reports and help you understand what comes next with confidence.
Reports are written clearly for schools, doctors, and legal purposes. They’re ready for action.
Meet our team
Trusted Psychologists Providing Personalized Evaluation
Dr. Markus specializes in comprehensive evaluations for autism, ADHD, behavioral and emotional concerns, and more complex cases where an especially in-depth assessment may be needed. Her extensive background working with complicated clinical presentations gives her the experience to recognize overlapping symptoms, dig deeper when the answer is not immediately clear, and provide a comprehensive understanding of each individual’s needs.
Dr. Asher’s background in therapeutic day schools, community mental health, and psychological assessment gives her a unique understanding of the whole child, including their emotional, behavioral, social, and academic functioning. She is especially skilled at working with children who may have complex needs or difficulty with traditional testing and brings a patient, individualized approach to helping families better understand what their child needs to thrive.
Throughout her clinical training and practice, Dr. Higgins has worked extensively with individuals experiencing ADHD, autism spectrum disorder, OCD, anxiety, depression, PTSD, panic attacks, anger, relationship difficulties, and other complex concerns. Her experience working with individuals from diverse backgrounds and with overlapping symptoms allows her to approach psychological evaluations with a broad clinical perspective and a strong understanding of how different conditions can present in everyday life.
Intake Coordinator/Educational Liaison
As a mom of three, Nahry brings deep empathy and understanding to her role. With over 20 years in healthcare and 18 years of personal experience navigating the mental health space, she combines professional insight with lived experience to help people feel heard, supported, and confident in their next step.
SSP
Jeff works closely with families to provide meaningful diagnostic insights and practical recommendations, helping them better understand their child’s strengths, challenges, and educational needs. His deep knowledge of school systems and collaborative approach make him a valuable resource for families navigating the evaluation process.
Dr. Loretta Markus, Psy.D., is a Wisconsin-licensed psychologist with a doctorate in Clinical Psychology from John F. Kennedy University. She has extensive experience conducting psychological and neuropsychological evaluations across multiple domains, serving diverse populations throughout her career. Skilled in gold-standard evaluation for autism, ADHD, learning disorders, and mood concerns. Dr. Markus brings both expertise and compassion to every evaluation.
Dr. Amy Asher earned her Doctorate in Clinical Psychology from the Wisconsin School of Professional Psychology and has extensive experience providing evaluations and therapy for children, teens, and adults. With specialized training in autism, emotional regulation, and behavioral challenges, she brings compassion and expertise to every client and family she works with.
Intake Coordinator/Educational Liaison
SSP
Jeff works closely with families to provide meaningful diagnostic insights and practical recommendations, helping them better understand their child’s strengths, challenges, and educational needs. His deep knowledge of school systems and collaborative approach make him a valuable resource for families navigating the evaluation process.
