Start by talking to your child’s pediatrician or primary care provider. They can conduct an initial ADHD screening themselves or refer you to a specialist like a child psychologist or psychiatrist. The American Academy of Pediatrics recommends evaluation for any child between ages 4 and 17 who shows problems with attention, hyperactivity, or impulsivity that affect their school performance or behavior.
What Happens at the First Appointment
When you bring up your concerns with your child’s doctor, expect a conversation, not a single test. There is no blood test or brain scan that diagnoses ADHD. Instead, the process relies on gathering detailed information about your child’s behavior across multiple settings.
The provider will ask about your child’s medical history, family health history, school performance, home behavior, and social interactions. They’ll want to know when the symptoms started, how long they’ve been going on, and whether they show up in more than one environment. A child who struggles to focus only during math class, for example, may have a learning issue rather than ADHD. The AAP specifically recommends collecting input from parents, teachers, and other caregivers who see the child regularly.
Come prepared with specifics. Write down the behaviors you’ve noticed, when they happen, and how they compare to other children the same age. If your child’s teacher has sent home notes about behavior or focus, bring those. Report cards and school records showing a pattern over time are also useful. The more concrete detail you can provide, the smoother and faster the evaluation will go.
The Three-Part Diagnostic Process
A thorough ADHD evaluation follows three steps. First, the provider determines whether your child’s symptoms match the recognized criteria for ADHD, including patterns of inattention, hyperactivity, or impulsivity that are clearly impairing daily life. Providers use the diagnostic criteria from the DSM-5, which requires symptoms to be present in multiple settings and to have started before age 12.
Second, they rule out other explanations for the symptoms. Sleep problems, anxiety, depression, hearing or vision issues, and stressful life changes can all look remarkably like ADHD. A child who isn’t sleeping well, for instance, will have trouble concentrating and may act impulsively, mimicking classic ADHD behavior. This step often includes a physical exam, so dress your child in comfortable clothing.
Third, the provider checks for conditions that commonly overlap with ADHD. The AAP recommends that every child being evaluated for ADHD also be screened for learning disorders (like dyslexia or difficulty with math), anxiety, depression, and behavioral disorders like oppositional defiant disorder. Children with ADHD are significantly more likely to have one or more of these conditions alongside it, and missing them can undermine treatment.
Who Can Diagnose ADHD
Your child’s pediatrician can make the diagnosis. Many families start and finish the process with their primary care provider, especially for straightforward cases. But if the picture is complicated, or if you want more detailed cognitive testing, you have other options.
A child psychologist or psychiatrist specializes in behavioral and emotional conditions in children and can provide a more in-depth clinical evaluation. A neuropsychologist goes further still, using a series of interactive tests to assess specific cognitive abilities like working memory, processing speed, and attention span, then comparing your child’s results to peers of the same age. This type of evaluation is particularly helpful when learning disabilities might be part of the picture, or when the diagnosis is unclear.
The tradeoff is time and availability. Referrals to specialists can take several weeks to several months, and in some areas, waits of up to a year have been reported. If your pediatrician feels confident making the diagnosis, waiting for a specialist isn’t always necessary. Ask your pediatrician directly whether they’re comfortable evaluating for ADHD or whether they think a referral would be more appropriate for your child’s situation.
Children Under Age 4
The AAP guidelines cover children from age 4 through 17. For children younger than 4, there isn’t enough evidence to support a formal ADHD diagnosis. If your toddler or young preschooler shows concerning behavior, a provider may recommend parent training in behavior management rather than pursue a diagnosis. This approach teaches you specific strategies for responding to difficult behavior and doesn’t require a formal ADHD label to begin.
Requesting a School-Based Evaluation
You have a separate, parallel option through your child’s school. Under the Individuals with Disabilities Education Act (IDEA), you can request that the school evaluate your child to determine whether they qualify for special education services or accommodations. This is a free evaluation, and it’s your legal right to ask for one.
Put the request in writing. A simple letter or email to the school’s principal or special education coordinator works. State that you’re requesting an evaluation because you’re concerned about your child’s ability to learn or function in the classroom, and describe the specific issues you’ve observed. If your child has already been diagnosed by an outside provider, include that information and attach any reports you have. You’ll need to provide written consent before the school can begin testing.
Keep in mind that a school evaluation focuses on educational impact. The school’s goal is to determine whether your child needs specialized support to access their education. It may or may not result in an ADHD diagnosis, and it doesn’t replace a medical evaluation. But it can provide valuable data, including standardized testing, classroom observations, and teacher input, that a medical provider can use as part of their assessment. Many families pursue both tracks at the same time.
What Testing Costs
An ADHD evaluation through your child’s pediatrician is typically covered by insurance as part of a standard office visit or diagnostic workup. The visit will need to be documented as medically necessary, not a general screening, so make sure the provider notes specific symptoms and functional concerns.
Neuropsychological testing is more expensive, often ranging from several hundred to several thousand dollars, and insurance coverage varies widely. Some plans cover it with a referral and documented medical necessity. Others don’t cover it at all, or limit the number of testing hours. Call your insurance company before scheduling and ask specifically whether neuropsychological or psychological testing for ADHD is a covered benefit under your plan, and whether you need a referral or prior authorization.
School-based evaluations through IDEA are free. If cost is a barrier to private testing, pursuing the school route while working with your pediatrician for the medical side can get your child evaluated without significant out-of-pocket expense.
How to Prepare Your Child
Most children don’t need to do anything special before an ADHD evaluation. For younger kids, you can simply explain that they’re going to talk to a doctor who helps kids with school and paying attention. Avoid framing it as something being “wrong” with them. For older children and teenagers, being honest that you’re exploring whether ADHD might explain some of their struggles often goes over better than being vague.
If your child is seeing a neuropsychologist, the appointment may last two to four hours and involve puzzle-like tasks, memory exercises, and questions about how they feel. Make sure your child is well-rested and has eaten beforehand. Fatigue or hunger can affect performance on cognitive tests and muddy the results.