Peggy Cook

Clinical Leadership

Peggy Cook

MS, BCBA, LBA; Clinical Director

Naperville, IL

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About

Background and approach

Peggy Cook, MS, BCBA, LBA, is the Clinical Director at the Naperville center. She earned her Master of Science in Psychology from Capella University and is a Board Certified Behavior Analyst and Licensed Behavior Analyst. Peggy has worked with children and families across school, home, and clinical settings, giving her a well-rounded perspective on how to support skills that are meaningful in a child’s everyday life.

Peggy’s clinical approach is rooted in play-based ABA, with a special focus on building social skills through natural, engaging, and meaningful interactions. She believes some of the best learning happens when children are having fun. Whether it’s learning to take turns during a favorite game, joining a peer in play, starting a conversation, or navigating the everyday ups and downs of friendships, Peggy enjoys helping children build the skills and confidence they need to connect with the people around them.

One of Peggy’s favorite parts of being a BCBA is celebrating the moments that may seem small but can make a big difference in a child’s life. She also loves partnering with families and supporting clinicians as they grow in their confidence, creativity, and ability to make therapy both effective and enjoyable.

Outside of work, Peggy has three children and three dogs. ABA has even become a family affair—both her daughter and one of her sons are Registered Behavior Technicians (RBTs). When she’s not at the center, Peggy enjoys gardening, putting together a great outfit (and shopping for one), having dinner with friends and family, and making time to travel whenever she can.

Getting care at Gracent Pediatric Therapy

Whether your child needs one therapy or a full team, we'll build a plan around them at the center closest to you. One call gets you started.
1

Reach out to us

Tell us about your child. We’ll listen, ask questions, and help you understand next steps based on your needs and availability.

2

Come in for a tour

Meet the team, see the space, and talk through how we’d support your child, so you can feel confident before moving forward.

3

Start care with confidence

We’ll help you get started quickly and smoothly, with a plan built around your child.

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Whether you’re just beginning to explore therapy or looking for a better fit, our team is here to help you take the next step — with clarity, compassion, and care.
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