Early Intervention vs. ABA Therapy: What Comes First for Gurnee Families

You sit in your pediatrician’s office in Gurnee, IL, and two phrases come up at the same time. Early intervention and applied behavior analysis (ABA) therapy. You nod along, but inside, you have countless questions. 

Which one comes first? How are the two different? If that’s where you are right now, take a breath. Sorting out early intervention vs. ABA therapy in Gurnee is simpler than it sounds once someone lays it out in plain language.

A growing number of families are having this exact conversation. You’re not alone. The Centers for Disease Control and Prevention (CDC) reported that it now identifies about one in 31 eight-year-olds with autism, a rate of 32.2 per 1,000 children. 

By the end of this guide, you’ll know what each program is and how they relate to each other. If you’re already weighing pediatric therapy in Gurnee, you’re in the right place.

What Is the Illinois Early Intervention Program?

Early intervention (EI) is Illinois’s state program for children from birth to age three with developmental delays or disabilities, and the federal government funds it under Part C of the Individuals with Disabilities Education Act (IDEA). The goal is to help your child build skills during the years when the brain grows fastest. 

Services run on an Individualized Family Service Plan (IFSP), a written plan you help create alongside your child’s care team. That plan can include speech therapy, occupational therapy (OT), physical therapy (PT), and developmental therapy, and your team often delivers them right in your home, where your child feels most comfortable.

Anyone can make a referral, and the evaluation is free. EI doesn’t require an autism diagnosis to qualify, making it a fast first step for families in Lake County looking for support. If you suspect autism, you can pursue how to get an autism diagnosis in Lake County at the same time.

What Is ABA Therapy, and How Is It Different?

ABA therapy isn’t the same as early intervention. It is a distinct program with a different purpose, funding source, and timeline in Gurnee. A registered behavior technician (RBT) delivers ABA therapy services one-on-one, and a board-certified behavior analyst (BCBA) oversees the plan. 

Your child builds skills through structured play, with data tracked every session. For Gurnee families, knowing how ABA therapy differs from early intervention makes the next decision much easier. Here’s what sets it apart:

• Insurance-authorized, not age-capped: Early intervention ends at age three. ABA follows your child’s diagnosis and insurance, so it continues long after.
• One-on-one structure: Your child practices with an RBT in every session, keeping the focus entirely on your child’s individual goals.
• Data drives every decision: The BCBA reviews session data regularly and adjusts the therapy plan based on what your child is actually doing.
• Rooted in real life: ABA targets everyday skills your child can use at home and with other children their age.

ABA and early intervention serve distinct purposes and draw on separate funding sources. For most Lake County families, understanding the distinction leads to a more important question: how the two fit your child’s specific path forward.

Can Early Intervention and ABA Therapy Run at the Same Time?

The short answer is yes, they can. Your child’s IFSP funds early intervention, and your insurance funds ABA, so the two programs operate on separate tracks. Starting one does not cancel or delay the other.

The longer answer is that running both at once takes real coordination. Insurance carriers sometimes flag the overlap and question whether both services are necessary. Fitting two full sets of weekly sessions into a toddler’s routine can also stretch a family’s schedule to its limit. Many Gurnee families end up starting with one and adding the other when the timing makes sense.

This is where having your child’s services in one building matters. At CST Academy’s Gurnee clinic, your child’s ABA, speech therapy, and occupational therapy teams coordinate on goals that cross disciplines. Your care team can help you map out a realistic schedule and navigate insurance questions before you commit to both programs at once. The benefits of ABA therapy and EI are both real, and your team at CST Academy can help you figure out how they fit together for your child.

What Happens at Age Three? The Illinois Early Intervention Transition

Age three is the real pivot point, and it’s the one most families misunderstand. Illinois EI ends on your child’s third birthday. At that point, services shift from the IFSP under Part C to an individualized education program (IEP) under Part B, which your local school district delivers. This is a change in who provides services and how.

ABA therapy doesn’t end at age three. Because it follows a diagnosis and insurance authorization, ABA continues right through and past the third birthday. This is exactly where the early intervention versus ABA therapy question shifts for Gurnee families. Your child may have been receiving speech therapy, occupational therapy, and developmental support through EI. When that program ends, those services need a new home, and ABA alone doesn’t replace them.

Transition planning starts early. Under Illinois rules, your EI team must begin planning for transition six months before the child’s third birthday. The consent and referral step begins around your child’s second-and-a-half birthday, and your team holds a transition planning conference no fewer than 90 days and no more than nine months before the third birthday. 

When your child turns three, they transition to preschool special education services under Illinois law. The IFSP gives way to an IEP, and your child’s services shift from a family-centered plan to one built around educational goals. If commuting becomes difficult during this period, consider telehealth ABA therapy. That option can keep your child’s sessions steady even when your week gets unpredictable.

One exception worth knowing: if your child’s third birthday falls between May 1 and August 31, and they’re found eligible for an IEP, Illinois law allows EI services to continue through the start of the next school year rather than ending on the birthday itself.

How Does the Gurnee Clinic Support Both Stages?

The Gurnee clinic brings ABA, speech therapy, and occupational therapy together on-site, just off the I-94 Tri-State Tollway at Grand Avenue. As your child moves through the early intervention years and into the age-three transition, the therapy itself stays put. For families navigating early intervention and ABA therapy in Lake County, having services in one place means fewer drives and less time coordinating between offices.

This matters most at the age-three transition. When EI ends, your child may still need speech therapy or occupational therapy alongside ABA. At a clinic that only provides ABA, you would need to find and coordinate separate providers for those services on your own. At CST Academy’s Gurnee clinic, your child continues with ABA, speech therapy, and occupational therapy in the same building, with a team that already shares your child’s history.

Diagnostic evaluations happen at CST Academy’s diagnostic clinic in Chicago, so if you’re seeking an autism diagnosis, start there. Your Gurnee team then conducts the ABA assessment and builds your child’s therapy plan. You already have a team ready for the next step.

On cost, the Gurnee clinic is in-network with Blue Cross Blue Shield PPO. Illinois law requires insurance companies to cover medically necessary applied behavior analysis for children with an autism diagnosis. The billing team verifies your benefits and handles pre-authorization before your child’s first session.

Is the Gurnee Clinic Right for Gurnee and Lake County Families?

For families comparing early intervention with ABA therapy in Gurnee, the draw is straightforward. You get ABA, speech therapy, and occupational therapy all in one building and close to home.

Whether your starting question is about early intervention options or about ABA therapy in Gurnee specifically, your goal remains the same: less time coordinating between separate providers and more time focused on your child. 

If you’re not sure where you stand, you can use the online M-CHAT screening tool, or begin with speech therapy services to decide whether a deeper look makes sense.

Frequently Asked Questions

Families exploring early intervention and ABA therapy in Gurnee often ask the same questions. Here are the ones that come up most:

Early Intervention or ABA Therapy in Gurnee: Which Should Come First?

There’s no fixed order. For a child under three, some families manage both at once, though scheduling and insurance can make that difficult in practice. The right start depends on your child’s age, diagnosis, and needs. A developmental pediatrician can refer you, and the Lake County Child and Family Connections (CFC) office determines which programs your child currently qualifies for.

Can My Child Get Illinois Early Intervention and ABA Therapy at the Same Time?

The two are funded separately, so nothing blocks it on paper. In practice, many families find that insurance carriers question paying for both at the same time, and running two full sets of sessions is hard to manage. Talk to your Gurnee care team and your insurance carrier early so you know what’s realistic before committing to both.

Does Insurance Cover ABA Therapy in Illinois?

Illinois law requires insurance companies to cover medically necessary ABA therapy for children with an autism diagnosis. CST Academy’s Gurnee clinic is in-network with Blue Cross Blue Shield PPO, and our billing team handles verification and pre-authorization so you don’t have to.

Do You Need an Autism Diagnosis Before Starting ABA at the Gurnee Clinic?

Yes, a diagnosis comes first. CST Academy offers autism evaluations at our diagnostic clinic in Chicago. Once yours is complete, the Gurnee team conducts a separate ABA assessment and builds your child’s therapy plan. You don’t need to find a separate provider for either step.

Connect Early Intervention with ABA Therapy

Early intervention and ABA therapy answer different questions at different stages of your child’s development. EI supports your child through the first three years. ABA, along with speech therapy and occupational therapy, continues for as long as your child’s diagnosis and insurance support it. The biggest turning point comes at age three, when the public program ends and your family needs a provider that can carry your child’s full range of services forward.

If you’re weighing how early intervention and ABA therapy fit together in Gurnee, you can get started with the Gurnee team at CST Academy to find out what makes sense for your child’s age and needs.