By Published On: May 29, 2026
How to talk with your pediatrician about autism diagnosis and next steps.

How to Talk to Your Child’s Pediatrician About an Autism Evaluation

As a parent, you know your child better than anyone. When something feels off — when the milestones aren’t coming, when communication seems different, when behaviors are hard to explain — that instinct matters. But turning that feeling into a conversation with your pediatrician can feel intimidating.

What do you say? What if they don’t take your concerns seriously? What happens after?

At Mestre Behavior, we’ve spent more than 16 years supporting Miami families through every stage of this journey — including the very beginning, when parents are just starting to find words for what they’re observing at home. This guide walks you through exactly how to approach that conversation with your child’s doctor, so you feel prepared and confident when you walk into that appointment.

Why the Pediatrician Is Your First Step

Most autism evaluations don’t begin with a specialist. They begin with your child’s pediatrician, who serves as the gatekeeper to the evaluation process. A referral from your pediatrician is often required to access developmental specialists, and in many cases, it’s also necessary to begin the insurance authorization process for services like ABA therapy.

This means the conversation you have with your child’s doctor is not just important — it’s the starting point for everything that follows.

Before the Appointment: Write It Down

The single most helpful thing you can do before your appointment is document what you’ve been observing. Pediatric visits are short, and it’s easy to forget specific examples once you’re in the room.

Keep a simple notes document or use your phone’s notes app to record:

  • Specific behaviors — not just “he doesn’t make eye contact,” but “when I call his name, he doesn’t look up, even if I’m standing right next to him.”
  • Developmental milestones — Has your child started using words? Do they point to show you things they’re interested in? Are they engaging in back-and-forth play?
  • When you first noticed — Even an approximate timeline helps the pediatrician understand how long something has been present.
  • Frequency and context — Does the behavior happen in certain situations only, or across all settings?

If you have videos, bring them. A short clip of a behavior you’ve observed at home can communicate more clearly than any description. Most pediatricians genuinely appreciate when parents come in with documentation — it makes the visit more productive for everyone.

What to Say: Starting the Conversation

Many parents hesitate because they don’t want to be wrong, or they worry about overreacting. But expressing a concern is not the same as making a diagnosis — it’s doing your job as a parent.

Here are a few ways to open the conversation clearly:

OPTION 1

“I’ve been noticing some things about [child’s name] that I’d like to talk through. I know you see a lot of kids, and I want your perspective.”

OPTION 2

“We’ve been concerned about [child’s name]’s language development / social interactions / behavior. I’ve written down some specific things I’ve observed — can we go through them together?”

OPTION 3

“I’d like to request a developmental screening today. I have some concerns I want to make sure are on the record.”

Pro tip: The phrase “on the record” signals that you want concerns documented in your child’s chart — useful for follow-up or second opinions.

Mention the M-CHAT and Other Screening Tools

The M-CHAT-R (Modified Checklist for Autism in Toddlers) is a standardized screening tool recommended for all children at their 18-month and 24-month well visits. If your child has already passed those ages without being screened, or if you’re not sure whether a screening was done, you can simply ask:

“Has [child’s name] been screened for autism? Can we do that today?”

Pediatricians are also required to perform general developmental screenings at 9, 18, and 30 months under standard-of-care guidelines. If your child’s appointments haven’t included a developmental screening, requesting one is entirely appropriate — and the doctor should welcome it.

If the Doctor Minimizes Your Concerns

This happens more often than it should. “Let’s wait and see” or “boys develop later” or “all kids do that” are responses that many parents in our Miami community have heard — and then later regretted not pushing back on.

If you leave an appointment feeling like your concerns weren’t taken seriously, here’s what you can do:

  • Ask directly for a referral. You can say: “I understand you don’t think this is urgent, but I’d still like a referral to a developmental pediatrician so we can get a professional opinion. Can you put that in today’s notes?”
  • Request an Early Steps evaluation. In Florida, children under age 3 who have developmental concerns are eligible for a free evaluation through the Early Steps program — and you do not need a doctor’s referral to request one. You can call Early Steps directly at 1-800-218-0001.
  • Seek a second opinion. If your pediatrician is dismissive and you feel strongly that something is going on, trust yourself. Another pediatrician, a developmental pediatrician, or a child psychologist can provide an independent assessment.

Early intervention is one of the most significant factors in outcomes for children with autism. Waiting months or years for a re-evaluation is time your child can’t get back. Advocating firmly — and kindly — is always worth it.

What Happens After a Referral

Once your pediatrician provides a referral, you’ll likely be directed to one of several types of specialists:

  • Developmental pediatrician — a physician who specializes in developmental and behavioral concerns in children
  • Child psychologist or neuropsychologist — who can conduct a comprehensive developmental evaluation, including cognitive and adaptive testing
  • Early Steps (ages 0–3) or school district evaluation (ages 3+) — publicly funded evaluation and services for eligible children in Florida

The evaluation process can take time. Waitlists for developmental pediatricians in Miami-Dade can run several months. In the meantime, you don’t have to wait to begin support.

You Don’t Have to Wait for a Diagnosis to Start ABA Therapy

This is one of the most important things we tell families at Mestre Behavior: a formal diagnosis is not always required to begin ABA therapy.

For children who are showing developmental differences — in communication, social interaction, play, or behavior — early ABA intervention can begin before a full diagnostic workup is complete. Many insurance plans, including Florida Medicaid, allow ABA services to begin with a qualifying diagnosis from a licensed professional, and our team can help you navigate what documentation is needed.

If you’re in the process of pursuing an evaluation, or you’ve recently received a diagnosis and aren’t sure what the next step looks like, we invite you to reach out. Our team will walk you through the process, verify your insurance benefits, and help you understand what services your child may be eligible for — without any pressure or obligation.

A Note for Miami Families

Mestre Behavior serves families across Miami-Dade, including Kendall, Doral, Coral Gables, Westchester, Palmetto Bay, South Miami, and surrounding areas. Our team provides services in both English and Spanish, and we understand the unique experience of navigating healthcare systems in a bilingual household.

If you’ve been putting off the conversation with your child’s doctor, let this be your encouragement to schedule that appointment. The earlier a child receives support, the more powerful the impact — and your instincts as a parent are worth following.

Key Takeaways

  • Document specific behaviors before your appointment — write them down and bring videos if you have them.
  • Ask directly for a developmental screening using tools like the M-CHAT-R.
  • If your concerns are dismissed, ask for a referral in writing and request it be documented in your child’s chart.
  • Florida families can access free Early Steps evaluations without a doctor’s referral for children under 3.
  • A formal diagnosis is not always required to begin ABA therapy — contact us to learn what your child may be eligible for today.

Mestre Behavior has been providing ABA therapy to children with autism in Miami for over 16 years. To speak with our team about your child’s needs, call us at (305) 668-8644 or contact us online.

About the Author: Ashley Mestre, M.S., BCBA

Ashley Mestre, MS, BCBA, is the Founder and Director of Mestre Behavior Development, LLC. She earned her M.S. in Psychology with a specialization in Behavior Analysis from Florida International University in 2008 and has worked with children with Autism Spectrum Disorder since 2000. Ashley specializes in early intervention and the clinical supervision of Verbal Behavior–based ABA programs, with a focus on communication development, adaptive skills, and reducing maladaptive behaviors. She also provides parent training, professional consultation, feeding intervention support, and toilet-training programs. Expertise: ABA Therapy, Early Intervention, Autism Support, Verbal Behavior, Parent Training

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Mestre Behavior provides personalized ABA therapy for children with autism, focusing on practical skills, behavior support, and caregiver training.

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