Pediatric Neuropsychological Services — Ages 3–21Switch to Adult
Horizon Neuropsychological Services

Welcome to
Horizon

Neuropsychological Services

Proudly serving the Denver Metro Area and Boulder, Colorado

Horizon Neuropsychological Services, LLC conducts neuropsychological evaluations for children, teens, adults, and older adults. Results provide diagnostic clarification and inform treatment planning.

More specifically, our doctors evaluate those with:

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Neurodevelopmental Disorders

Neurodevelopmental disorders can affect various brain functions, including behavior, cognition, social interaction, and motor skills.

Autism, ADHD, Tic Disorders, Learning Disabilities

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Neurocognitive Disorders

Neurocognitive Disorders (NCDs) describe changes in cognitive function beyond what would be expected for normal aging.

Traumatic Brain Injury (TBI), Cognitive Decline due to Medical Conditions

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Psychiatric Conditions

Psychiatric conditions encompass mental health disorders affecting thoughts, emotions, behavior, and well-being.

Anxiety (TBI), Depression, OCD, Psychosis, Trauma, Maladaptive Family Dynamics

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Identity Challenges

Identity challenges include struggles with cultural, religious, gender, or sexual identity acceptance and expression.

Gender Dysphoria, Difficulties with Peer or Family Acceptance, Conflicts Related to Cultural or Religious Identity

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From a pediatrician's perspective, our comprehensive reports help inform decisions regarding medication intervention and multidisciplinary treatment planning. Unlimited consultation is available after, and our doctors are also willing to participate in the IEP process upon request.

Below are examples of how we help children and teens be the BEST version of themselves at any stage of development:

Cognitive Profile

We assess cognitive profiles, including verbal, visual, and motor abilities, attention and memory, and adaptive functioning (i.e., the ability to complete daily tasks independently).

Milestones

We determine whether children are appropriately meeting developmental milestones in speech/language, motor, adaptive, and social/emotional development.

Learning Profile

We assess learning profiles, including learning disabilities and eligibility for gifted programming.

Academic Assistance

We provide recommendations for a child's optimal learning environment, including IEPs and 504 Accommodation Plans, therapeutic classrooms, ABA classrooms, and gifted programming.

Standardized Tests

We can determine eligibility for extended time on standard tests such as SATs and ACTs, as well as CMASs.

Mental Health

We evaluate mental health statuses, provide diagnostic clarification, and connect families with services and treatment providers to develop treatment plans.

Physical Health

We recommend ways to decrease the impact of one's physical condition on their daily life, both at home and in school or at work, as well as with friends and family.

Adulthood

We can provide tailored roadmaps to help families prepare their child for adulthood, including entering the workforce, attending college, and transitioning to community living for individuals with disabilities.

Cultural Intersectionality

We help families understand how cultural intersectionality influences child development, considering factors such as gender and sex, religion, race and ethnicity, culture, socioeconomic status, and mental and physical disabilities.

Understanding Neuropsychological Evaluations & Our Approach

A neuropsychological evaluation by a licensed clinical psychologist (PhD or PsyD) explores your child's unique brain-behavior relationship through interactive tests. We assess skills such as verbal, nonverbal, problem-solving, attention, memory, motor, adaptive functioning, academics, emotion regulation, and social communication.

Comparing your child's performance to peers identifies strengths and weaknesses, which are reviewed in the context of medical history, family background, culture, and education. Based on this, we diagnose and create a treatment plan to help your child reach their full potential. All information is documented in a report for parents and necessary treatment providers (per parent request).

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Side profile of young woman with glowing brain

Meet Our Doctors

Our dedicated professionals bring a wealth of experience and expertise to Horizon Neuropsychological Services. With a shared commitment to personalized care, we are here to guide you toward optimal cognitive health and empowerment. Get to know the compassionate individuals behind our practice who are ready to support you every step of the way.

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Meghan T. Lee, Ph.D

Meghan T. Lee, Ph.D

Founder/CEO and Clinical Neuropsychologist

Ramya Rangamannar, Psy.D

Ramya Rangamannar, Psy.D

Director of Pediatric Neuropsychology and Clinical Neuropsychologist

Meghan Lechuga, Psy.D

Meghan Lechuga, Psy.D

Director of Adult Neuropsychology and Clinical Neuropsychologist

Matthew Conway, Psy.D

Matthew Conway, Psy.D

Director of Operations and Clinical Neuropsychologist

Alison Datoc, Ph.D

Alison Datoc, Ph.D

Clinical Neuropsychologist and Concussion Specialist

Jacqueline Slemp, Psy.D

Jacqueline Slemp, Psy.D

Clinical Neuropsychologist

Vanessa G. Williams, Ph.D

Vanessa G. Williams, Ph.D

Clinical Neuropsychologist

Spenser Nye, Psy.D

Spenser Nye, Psy.D

Clinical Neuropsychology Resident

Kevin Ball-Duane, Psy.D

Kevin Ball-Duane, Psy.D

Clinical Neuropsychology Resident

Ashleigh Beaulieu, Psy. D

Ashleigh Beaulieu, Psy. D

Clinical Neuropsychology Resident

Rachael Peck, Ph.D

Rachael Peck, Ph.D

Clinical Neuropsychology Resident

Casey Theriault, Psy.D

Casey Theriault, Psy.D

Clinical Neuropsychology Resident

Stacey Rowcliffe, Psy.D

Stacey Rowcliffe, Psy.D

Clinical Neuropsychology Resident

Molly Sullan, Ph.D

Molly Sullan, Ph.D

Faculty Affiliate

Locations

Littleton

7720 S Broadway
Suite 330
Littleton, CO 80122

Boulder

3000 Center Green Dr
Suite 230
Boulder, CO 80301

In-Home Testing

Our doctors currently offer in-home testing across the state of Colorado.

Telehealth Testing

Our doctors also offer telehealth testing appointments for appropriate evaluation needs.

(720) 242-7533

(720) 815-2613

Schedule An Appointment Today!

Evaluating youth ages 3+