Illinois ABA Therapy: A Parent's Checklist for Starting

In short: Starting ABA therapy in Illinois involves getting a diagnosis, checking insurance coverage (including Illinois Medicaid and private plans), enrolling in Early Intervention for children under 3, and choosing a qualified BCBA provider. Use free matching services like Get Started with ABA to find vetted providers in your area. Most insurance plans, including Medicaid, cover ABA therapy.
Key takeaways
- Obtain a formal ASD diagnosis to access ABA therapy coverage in Illinois.
- Check your insurance: Illinois Medicaid and most private plans cover ABA (state mandate).
- For children under 3, Illinois Early Intervention (EI) offers free evaluations and services.
- Choose a BCBA-led provider; ask about supervision ratios and family training.
Why You Need a Checklist for Starting ABA Therapy in Illinois
Starting applied behavior analysis (ABA) therapy can feel overwhelming. Between getting a diagnosis, understanding insurance, and finding the right provider, Illinois parents face a unique set of steps. A clear checklist helps you stay organized and reduces stress so you can focus on what matters: helping your child thrive. This guide walks you through each stage, from early signs to ongoing support.
ABA therapy is a evidence-based approach that teaches communication, social, and daily living skills while reducing challenging behaviors. In Illinois, families have strong legal protections for coverage, but knowing how to navigate the system makes all the difference.

🔗 Related reading: ABA for Sudden Autism Regression in 9-Year-Olds · Local ABA Therapy
Step 1: Obtain an Official Autism Diagnosis
Before you can access ABA therapy, most insurance plans require a formal diagnosis of autism spectrum disorder (ASD). This step is essential for both private insurance and Illinois Medicaid.
Where to Get a Diagnosis in Illinois
Diagnostic evaluations are typically performed by developmental pediatricians, child psychologists, or neuropsychologists. Many major children's hospitals in Illinois offer dedicated autism assessment centers, including Ann & Robert H. Lurie Children's Hospital of Chicago, OSF HealthCare Children's Hospital of Illinois, and SIU Medicine in Springfield. For families outside Cook County, community mental health centers and university clinics often provide sliding-scale evaluations.
What to Expect During the Evaluation
The process usually involves developmental history interviews, direct observation, and standardized assessments like the ADOS-2 (Autism Diagnostic Observation Schedule). Wait times can vary from a few weeks to several months depending on location and provider availability. While waiting, keep a log of your child's behaviors and any concerns to share with the evaluator.
Once you have a written diagnosis with the ASD code, you can use it to submit insurance claims and register for state services.
Step 2: Understand Your Insurance Coverage
Illinois is one of the best states for ABA coverage due to a strong state autism insurance mandate. Most health plans issued in Illinois must cover medically necessary ABA therapy. Here's how to check what your plan offers.
Illinois Medicaid (Medical Assistance)
Illinois Medicaid covers ABA therapy for children under 21 when prescribed by a doctor. You must use a provider enrolled in the Illinois Medicaid program. The coverage includes assessment, direct therapy, and parent training. Contact your local Department of Human Services office or the Medicaid managed care plan to confirm details.
Private Insurance
Illinois Public Act 097-1162 requires large group health plans to cover autism therapies, including ABA. The law applies to plans regulated by the state (fully insured plans). Self-funded employer plans are exempt but often offer coverage voluntarily. Small group plans and individual plans purchased on the marketplace must also comply. Call the customer service number on your insurance card and ask:
- Does my plan cover ABA therapy for autism?
- Do I need a referral or prior authorization?
- Is there a deductible, copay, or annual visit limit?
- Are in-network providers required? If so, can I get a directory?
Keep detailed notes of every call, including the date, representative's name, and what they said.

🔗 Related reading: 3 Year Old Not Talking But Babbling? ABA Can Help · Local ABA Therapy
Step 3: Early Intervention for Children Under 3
If your child is younger than 3, Illinois Early Intervention (EI) can be a fast track to services. The EI program, run by the Illinois Department of Human Services, provides free evaluations and services for infants and toddlers with developmental delays or disabilities.
How to Refer Your Child
You can refer your child yourself by calling the Child and Family Connections (CFC) office in your region. Each CFC office covers specific counties in Illinois. For example, CFC #1 serves Lake County, while CFC #11 serves the southernmost counties. A service coordinator will schedule a multidisciplinary evaluation at no cost to you.
ABA Therapy Through EI
Illinois EI may provide ABA services as part of a child's Individualized Family Service Plan (IFSP). However, availability can vary by region. If ABA is not available directly, the IFSP team can help you transition to private services while continuing other therapies like speech or occupational therapy. EI also offers parent coaching, which complements ABA.
Step 4: School-Based Services for Ages 3 to 22
Once your child turns 3, the school district becomes responsible for providing special education services. An Individualized Education Program (IEP) may include ABA-related goals and support, though direct ABA therapy is not always provided by the school. Many families combine school-based supports with private ABA therapy.
Requesting an Evaluation from the School District
Write a letter to the director of special education in your school district requesting a special education evaluation. The district must respond within 14 school days. If the team determines your child qualifies under the autism eligibility category, the IEP team can design appropriate services.
Even if you receive services through the school, private ABA therapy can target skills that are not addressed during the school day. Coordination between the school team and your ABA provider is crucial for consistency.

Step 5: Find a Qualified ABA Provider
Selecting the right provider is one of the most important decisions you'll make. Look for organizations led by Board Certified Behavior Analysts (BCBAs) who supervise Registered Behavior Technicians (RBTs) delivering direct therapy.
What to Look for in a Provider
- BCBA oversight: Ask how often the BCBA meets with your child and team. High-quality providers have weekly or biweekly supervision.
- Parent training: Effective ABA includes regular parent coaching so skills generalize at home.
- Low staff turnover: Consistency matters. Ask about retention rates and how they handle cancellations.
- Individualized plans: Avoid one-size-fits-all programs. Therapy should be tailored to your child's unique needs and family goals.
- Covered location: Decide if home-based, center-based, or community-based therapy fits your schedule.
To save time, use a free matching service like Get Started with ABA. You answer a few questions about your child's age, location, and insurance, and we connect you with vetted, BCBA-led providers in Illinois. There is no cost to you-we simply help families find the right fit.
Step 6: Prepare for the Initial Assessment
Once you've selected a provider, they will schedule a comprehensive assessment. During this session, the BCBA will observe your child, interview you, and review records to create a treatment plan.
Documents to Have Ready
- Diagnosis report
- Insurance card and policy details
- Any previous evaluations (speech, OT, school)
- List of your child's strengths, challenges, and preferences
- Your top goals for therapy (e.g., toilet training, communication, reducing meltdowns)
After the assessment, the provider will share a treatment plan with proposed hours, goals, and duration. Review it carefully and ask questions until you feel comfortable.
Step 7: Stay Engaged as a Partner in Therapy
ABA is most successful when parents are active participants. Attend parent training sessions, track progress at home, and communicate openly with the BCBA. Regular team meetings help keep everyone on the same page.
Remember that ABA therapy is a journey. Celebrate small wins and know that adjustments are normal. Some weeks your child may need more support; other weeks they may flourish. Trust the process and lean on your support network.
Costs and Financial Assistance
Without insurance, ABA therapy can cost $50 to $150 per hour. In Illinois, the state mandate drastically reduces out-of-pocket costs for families with qualifying insurance. Additionally, Medicaid waivers such as the Home and Community-Based Services (HCBS) waiver can cover therapies not fully funded by other sources. The Illinois Department of Human Services manages these waivers.
If you are underinsured, ask providers if they offer sliding-scale fees or payment plans. Some non-profits may also provide grants for families waiting for insurance approval.
Common Mistakes to Avoid
Many families run into avoidable roadblocks. Here are a few to watch out for:
- Waiting too long to start the diagnosis process: Early intervention is proven to lead to better outcomes. Start as soon as you suspect a delay.
- Not verifying insurance coverage before starting: Some plans require prior authorization. Check before scheduling services.
- Choosing a provider solely based on availability: A nearby provider may not be the best fit. Quality and rapport matter more.
- Ignoring parent training: Your involvement is critical for generalization. Insist on regular coaching.
- Forgetting to update your child's pediatrician: Keep the medical home informed of ABA progress and medication changes.
Next Steps: Your Personalized Provider Search
You've learned the essential steps for starting ABA therapy in Illinois. Now it's time to put them into action. Begin with the diagnosis and insurance check, then move through the checklist at your own pace. Remember, free help is available. Our matching service at Get Started with ABA connects Illinois families with BCBA-led providers who accept your insurance and understand your child's needs. Simply fill out a short form and we'll do the rest.
Every child deserves access to compassionate, effective ABA therapy. With this checklist, you are well on your way to providing that for your family.