the Team

Meet our team of Board Certified Behavior Analysts (BCBA's)

Chrystle Medina, Clinical And Administrative Director 

Board Certified Behavior Analyst (BCBA)

Chrystle Medina is Board Certified Behavior Analyst (BCBA) with over 10 years of experience helping the neurodivergent community.   In 2022, she formed Joyful Behavior Analytic Services, LLC with the goal of providing quality ABA services to neurodivergent individuals and their families using trauma-informed care and assent based services. 

Chrystle has experience working with neurodivergent  children and adults. She specializes in verbal behavior, problem behavior, early intervention, and adaptive skill acquisition. 

Chrystle earned her BCBA in 2018 and has filled many roles in her career including Program Manager, Clinical Supervisor, Program Coordinator, and Clinical Director. Chrystle has also worked in the field across the states of California, Georgia, and is currently practicing in Maryland. She is passionate about helping her learners reach their highest potential and believes that learning should be FUN and play based! She also strongly believes that therapy should be delivered with compassion, ensuring assent is obtained from the learner every step of the way.



Meet our team of Behavior Technicians

Rachael WalkER


Meet Rachael Walker, a native of the Eastern Shore, who is a dedicated advocate for assent-based ABA. With three years of specialized experience, Rachael excels in one-on-one interactions with autistic children as young as 18 months old, crafting positive and impactful interventions. Her expertise spans various environments, including schools, daycare settings, and homes. Rachael is deeply committed to delivering services that empower autistic individuals and enlighten the community. She firmly believes that ABA therapy can create a positive, supportive, and safe experience for everyone involved.