Our team

The people who’ll know your child by name.

Leadership

The people who run the clinic, and who you’ll hear from first.

Joanna Bouboulis

Founder and Executive Director

Joanna founded Imagine That Therapy after her daughter Zoe's autism diagnosis, wanting to create hope and new possibilities for families.

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Mackenzie Hascup

Clinical Director

As Clinical Director, Mackenzie enjoys mentoring her team to create the best possible experience for clients and staff.

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Leah Graham

Operations Manager

Leah was the first team member to join Imagine That Therapy and has been overjoyed watching the organization grow.

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Behavior analysts

Board Certified Behavior Analysts (BCBAs) design and oversee each child’s program.

BCBA trainees

Registered Behavior Technicians (RBTs) working toward becoming Board Certified Behavior Analysts, with guidance from our BCBAs.

Registered behavior technicians

Registered Behavior Technicians (RBTs) work one-on-one with children every session.

Join the team

Want to be one of the people kids ask for by name?

We’re hiring BCBAs, BCBA fellows and RBTs who want to do play-based ABA well, with paid training, mentorship and a team that has your back.

See careers Open positions on Indeed

From families who know the team

“Our family has had an overwhelmingly positive experience at Imagine That Therapy. Our child has grown and improved in several areas including socialization, communication, and reduction in harmful behaviors. Their staff is knowledgeable, caring, and communicative. I’d recommend them without any hesitation - it’s been a truly wonderful place for our child to learn and grow.”

Ashley A. · August 2026Review on Google

“My son goes to Imagine That Therapy for ABA, and we’ve had such a great experience. His therapists are patient, kind, and really get him. They celebrate his progress, no matter how small, and keep me updated on everything. The whole team is caring and easy to talk to, and it’s clear they love what they do. My son actually looks forward to going, which says a lot. We’ve seen so much growth since starting here, and I’m really thankful for the support they’ve given our family.”

Heather B. · October 2025Review on Google

See all parent reviews →

FAQ

Questions parents ask

What’s the difference between a BCBA and an RBT?

A Board Certified Behavior Analyst (BCBA) is the clinician who designs and oversees your child’s program. A Registered Behavior Technician (RBT) works directly with your child, session to session, carrying that program out.

Who designs and oversees my child’s program?

Our Board Certified Behavior Analysts (BCBAs) do.

How big is the team?

More than 20 people across our two clinics, from leadership to the Registered Behavior Technicians (RBTs) who work with children day to day.

Who leads Imagine That Therapy?

Joanna Bouboulis, our founder and Executive Director, leads the clinic. Mackenzie Hascup is our Clinical Director, and Leah Graham is our Operations Manager.

Can I read more about the person who’ll work with my child?

Yes. Tap or click any team member’s card to read their full bio.

Will my child work with the same therapist every session?

Yes. Your child works with a consistent RBT. When they’re ready to practice their skills with someone new, we introduce another RBT. That’s part of helping their skills carry over to new people.

Not sure yet? That’s what the first call is for.

Ask about insurance, schedules, or what a day would look like for your child. No pressure and no commitment.

Call 703-634-3532Talk it through with us · 703-634-3532 Send us a message