About Allium Behavioral Services: ABA Therapy in Rosedale, MD
Allium Behavioral Services is a family-centered ABA therapy provider in Rosedale, MD, founded by two Board Certified Behavior Analysts dedicated to helping children build communication, social, behavioral, and daily living skills. Our team partners with families throughout Baltimore City and Baltimore County to deliver personalized, evidence-based care rooted in compassion and everyday connection.
A Message From Our Founders
At Allium Behavioral Services, our mission is to provide exceptional Applied Behavior Analysis (ABA) therapy that supports children with autism and developmental disabilities in reaching their fullest potential.
As the owners of Allium Behavioral Services, we are honored to partner with families in Rosedale, MD, and surrounding communities by delivering personalized, evidence-based ABA services that help children build communication, social, behavioral, and daily living skills while thriving at home, in school, and throughout their communities.
Just as a gardener nurtures every plant with care, we believe every child has unique strengths and unlimited potential to grow. Our experienced Board Certified Behavior Analysts (BCBAs) and Registered Behavior Technicians (RBTs) create individualized behavior plans that teach from a place of encouragement, compassion, and joy. Through evidence-based behavioral interventions, family-centered care, and personalized planning, we help children develop meaningful skills, increase independence, and build lasting progress.
At Allium Behavioral Services, we are proud to support children and families in Rosedale, MD, with compassionate, individualized ABA therapy designed to help every child sprout, grow, bloom, and thrive, one step at a time.
Together, let’s nurture growth, celebrate progress, and cultivate a community where every child’s potential can take root and blossom.
Emily Prevas, M.A., BCBA, LBA & Jamie Harrell, M.S., BCBA, LBA
Co-Founders
What Is ABA Therapy?
Applied Behavior Analysis (ABA) helps children learn and grow by understanding how the environment affects their behavior. In early intervention, ABA focuses on supporting children’s development through play, positive reinforcement, and individualized teaching. We build on each child’s strengths while helping them learn communication, social, and daily living skills. Our goal is to teach meaningful skills, reduce challenging behaviors, and promote independence so children and families can flourish.
Our Board Certified Behavior Analysts (BCBAs) create individualized behavior plans that help children build communication, social, adaptive, and daily living skills. Our family-centered approach encourages independence and meaningful progress, supporting children as they grow at home, in school, and throughout their community. Families can also find general background on autism spectrum disorder through the CDC’s autism resources.
Allium's Approach to ABA Therapy in Rosedale, MD
We prioritize creating joyful learning experiences for our clients by ensuring that they are happy, relaxed, and engaged during their time with us. We are committed to providing compassionate individualized treatment which is supported by our thorough training of practitioners and BCBA clinical oversight. With a steadfast dedication to client-centered care, we stay at the forefront of the ABA field by continuously educating ourselves in evidence-based ABA practices. These values lead to lasting and meaningful outcomes for our clients and their families.
Our experienced BCBAs provide ongoing clinical oversight while mentoring our trained behavior technicians, so every child receives compassionate, high-quality care. We stay grounded in current ABA research and individualized planning approaches, allowing us to deliver effective autism therapy that creates lasting, meaningful outcomes for children and their families.
Our Values
Dignity
Every child and family is treated with respect and care.
Growth
Inclusivity
Joy
Our Vision
At the heart of our vision is the belief that every child deserves to experience joy in their journey toward growth and development.
Our Mission
At Allium, our mission is to support children and their families through effective, compassionate behavior change by providing high-quality ABA services. We are dedicated to fostering growth and development in all aspects of life, supporting children at home, in school, and within their community.
Meet Our Team
Jamie Harrell, M.S., BCBA, LBA
Co-Owner & Board Certified Behavior Analyst
Jamie has worked in the field of ABA since 2012, while working toward her Master's in Applied Psychology. During that time, she worked with children and adolescents, providing intensive behavioral interventions and building skills such as functional communication and play. Jamie became a Board Certified Behavior Analyst (BCBA) and a Licensed Behavior Analyst (LBA) in Maryland in 2015. She has worked in home, hospital, and clinic settings, caring for children and their families. Jamie is passionate about building verbal and social skills so that the children she works with can connect with their families and communities in new ways.
Education
University of Baltimore, M.S., Applied Psychology, 2015
Towson University, B.S., Psychology, 2012
Emily Prevas, M.A., BCBA, LBA
Co-Owner & Board Certified Behavior Analyst
Emily has worked in the field of ABA since 2004 and became Board Certified and Licensed in Maryland in 2015. Emily's experience includes supporting children and adolescents who display severe food refusal and selectivity, helping increase the variety, texture, and volume of food they consume. While working toward her Master's degree, she supported young children with limited leisure and play skills, helping them engage with toys and activities to encourage learning through play. She has also provided in-home and in-clinic care for children of all ages to build social, verbal, and life skills. Emily is passionate about teaching new skills to the children she cares for so they can grow into capable, independent individuals.
Education
University of Maryland, Baltimore County, M.A., Human Services Psychology (ABA Track), 2015
University of Maryland, Baltimore County, B.A., Psychology, 2005
Samantha O'Dea, BCBA, LBA
Vice President of Clinical Operations
As a seasoned Board Certified Behavior Analyst with a dedication to fostering independence in individuals with special needs, Samantha brings a wealth of experience and passion to her role. Since earning her BCBA certification in 2015, she has immersed herself in the field of Applied Behavior Analysis, using her expertise to make a positive impact in the lives of children and families.
Samantha finds fulfillment in direct work with children and families, guiding them through their unique journeys and witnessing their growth firsthand. Whether designing individualized behavior plans or providing tailored support and training, Samantha is committed to fostering an environment where every child can thrive.
Beyond her clinical work, Samantha is passionate about mentoring the next generation of BCBAs, sharing her knowledge with early-career professionals while continuing to grow in her own practice.
Why Families in Rosedale, Baltimore City, and Baltimore County Choose Allium
Clinic-based early intervention: Supports communication and play skills in young children through structured, one-on-one learning in our clinic.
Toilet training support: Builds independence with a step-by-step, individualized approach to a skill many families find challenging to navigate alone.
Sleep consultation services: Supports healthy sleep routines so children and their families can rest and thrive.
Allium Sprouts: A parent-child program that builds early learning and social skills, welcoming families with or without an ABA diagnosis.
Early Childhood Support Group: Connects families and builds community around shared experiences and guidance.
For a closer look at what to expect day to day, read our guide on ABA therapy for Rosedale families.
Our team also welcomes BCBAs and RBTs who want to grow their careers in a supportive, mission-driven clinic. See our current career openings.
Clinic-Based Early Intervention ABA Therapy FAQs
What is ABA therapy?
How does ABA therapy help children with autism?
Who provides ABA therapy at Allium Behavioral Services?
Does my child need an autism diagnosis to start ABA therapy?
What areas does Allium Behavioral Services serve?
Is ABA therapy covered by insurance in Maryland?
Are families involved in the therapy process?
Does Maryland Medicaid cover clinic-based ABA therapy?
What does BCBA certification mean?
Connect With Our Team
Contact Allium Behavioral Services to schedule a conversation about your child’s individualized behavior plan.