If you’re seeking a trusted ABA provider who sees your child as a whole person and your family as a true partner, you’re exactly where you belong.
*We offer services in English, Spanish, and Portuguese
If you’re seeking a trusted ABA provider who sees your child as a whole person and your family as a true partner, you’re exactly where you belong.
*We offer services in English, Spanish, and Portuguese
Our ABA practice is built on relationships—not formulas or one-size-fits-all programs. Our team takes the time to truly know your child, understand your family’s needs, and honor what matters most to you.
As trusted Applied Behavior Analysis Therapists serving the Arlington community, we combine the personal attention of a small, dedicated team with the clinical expertise, professionalism, and integrity you expect from a leading ABA provider.
If you’re looking for support that feels thoughtful, grounded, and genuinely collaborative, we’d be honored to walk alongside your family.
“It’s not about changing who a child is. It’s about supporting who they are.”
English | Spanish | Portuguese
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Take the first step by filling out our quick form and booking your complementary consultation. This is wonderful opportunity for you us to hear your story, understand your needs, and share how we can help.
We will gather all of the information pertaining to diagnoses, referrals, medical history, and funding source. We will secure an initial assessment authorization through your funding source.
We will gather all of the information pertaining to diagnoses, referrals, medical history, and funding source.
Your loved one will be assigned to the best care team for their needs and your child’s ABA journey will begin at home with a program designed around their comfort, strengths, and goals.
Certified Behavior Analyst
I am Martha Sierra, the founder of Sierra Behavioral Therapy (SBT). I am a Board-Certified Behavior Analyst with a Master’s degree in ABA, specializing in autism. Throughout my journey, I’ve had the pleasure of working closely with both kids and adults with ASD, enriching my practice with diverse perspectives and heartwarming stories along the way.
My philosophy
Always embracing the new and unfamiliar. I am dedicated to advancing the field and challenging both my clients and myself to explore new horizons and embrace growth.
SBT was born from a dream: to craft a space where individuals with autism shine, learning and thriving while being UNAPOLOGETICALLY themselves. Inclusivity isn’t just our policy; it’s our passion.
A bit about me
Cuban-born, living life to the fullest with my husband, our fur baby Maggie, and a perpetual love for traveling and the great outdoors.
“Here’s to making the world a better, more inclusive place, one breakthrough at a time. 💚”
We accept all major insurance plans to help make high-quality care accessible to the families who need it.
Just received an autism diagnosis for your child? We’re here to help guide you through the next steps.
This free, one-time coaching session is designed specifically for parents who are new to the autism journey. You’ll have the opportunity to connect with an experienced professional who can help you:
Understand what an autism diagnosis means for your child and family
Explore therapy options, including ABA
Learn about local and online resources
Discuss next steps and future planning
No pressure. Just guidance, clarity, and support.
pporting growth while honoring each child’s individuality and pace.
Sierra Behavioral Therapy
Building real connections through guided practice, shared experiences, and lots of “you’ve got this” moments—because friendships matter.
Supporting everyday wins, big and small, that help individuals grow confidence and thrive with greater independence.
Partnering with teachers and school teams to create learning environments where every student feels supported, understood, and ready to succeed.
Helping individuals find their voice, understand their needs, and confidently speak up across home, school, and community settings.
Equipping families with practical strategies, helpful insights, and ongoing support—because progress doesn’t stop when sessions end.
Strengthening expressive and receptive communication so thoughts, needs, and ideas are shared clearly and confidently.
Using proactive, strengths-based strategies to reduce challenging behaviors while teaching meaningful, functional replacement skills.
At Sierra Behavioral Therapy, compassionate care is at the heart of everything we do. Our clinicians prioritize kindness, empathy, and respect in every interaction, building genuine relationships with children and their families.
Early support can make a meaningful difference, but there is no single “right” path. We’re here to walk alongside you—offering knowledge, compassion, and individualized care from the very beginning.
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