Autism Testing Centers In Washington: Where To Get Tested

Getting tested for autism can be a life-changing step—whether you’re a parent seeking answers for your child, a teen navigating school challenges, or an adult finally connecting the dots about lifelong differences.

Autism testing isn’t about labeling—it’s about understanding. A proper diagnosis opens doors to support, therapies, and services that can improve daily life, communication, and independence.

Who Should Consider Getting Evaluated

Autism shows up differently in everyone. Some people may struggle with social interactions, routines, or sensory sensitivities, while others may find it hard to communicate feelings or adapt to changes. If you or someone you care about shows signs of autism—at any age—getting evaluated is a smart and empowering first step.

In Washington, there are many trusted places offering autism testing, from established children’s clinics to adult-focused centers and affordable university programs. This guide will help you find the right option based on your age, location, and needs—so you can move forward with clarity and confidence.

Types of Autism Testing Services in Washington

Not all autism testing looks the same. The process can vary depending on your age, symptoms, and whether you're seeking a quick screening or a full diagnosis. Here’s a simple breakdown of the types of autism testing services available in Washington:

Diagnostic Evaluations for Children

For young children, early diagnosis is key. These evaluations are often conducted by teams that include child psychologists, speech therapists, or developmental pediatricians. The goal is to carefully observe your child’s behavior, communication, and play—and compare it with typical development.

What it includes:

• Parent interviews
  
  
• Play-based assessments
  
  
• Speech and language tests
  
  
• Observation of social skills
  
  

These evaluations help parents understand whether their child is on the autism spectrum and what kind of early support would be most helpful.

Autism Testing for Teens and Adults

Older kids and adults can sometimes be missed earlier in life—especially if they mask symptoms or were misdiagnosed. Autism testing for teens and adults usually focuses on social history, behavior patterns, and how autism presents in day-to-day life.

What it includes:

• Personal interviews
  
  
• Questionnaires about daily habits and social skills
  
  
• Feedback from family members or teachers
  
  
• Cognitive or psychological testing (sometimes)
  
  

These tests aim to identify autism signs that may not have been obvious in childhood but still affect relationships, school, or work.

Developmental Screenings vs. Comprehensive Assessments

Not sure where to start? Some clinics offer developmental screenings, which are shorter check-ins to flag possible signs of autism. They’re a great first step—especially for toddlers or when you’re unsure if a full evaluation is needed.

If signs of autism are clear, a comprehensive assessment is the next step. This is a deeper evaluation done by licensed specialists, leading to a formal diagnosis if needed.

Who Performs Autism Testing in Washington?

Depending on the provider, evaluations can be done by:

• Developmental pediatricians
  
  
• Licensed psychologists
  
  
• Neuropsychologists
  
  
• Autism centers with multi-specialist teams
  
  

Each provider uses their own testing tools, but all focus on understanding how the brain processes social cues, communication, and behavior.

Top Places to Get Tested for Autism in Washington

Whether you’re seeking an autism diagnosis for your child, teen, or yourself as an adult, Washington offers several excellent clinics, hospitals, and programs specializing in autism testing. Below, we’ve grouped some of the best options by age group and type of service.

For Children and Teens

1. Seattle Children’s Autism Center – Seattle
   What They Offer: Comprehensive diagnostic evaluations for children using trusted tools like ADOS-2 and multidisciplinary assessments.
   Why Parents Choose It: Seattle Children’s is one of the leading pediatric centers in the Northwest, with a team of developmental pediatricians, psychologists, and therapists working closely together. They also provide early intervention services and parent support programs.
   Extra Support: Interpreter services available for non-English speaking families.
   Website: seattlechildrens.org
   
   
2. Center for Childhood Deafness and Hearing Loss (CDHL) – Seattle
   What They Offer: Autism evaluations alongside communication and hearing assessments for children.
   Why It’s Great: Specialized focus on children with complex communication needs, including those who are deaf or hard of hearing.
   Insurance Accepted: Most major plans accepted.
   Website: cdhl.org
   
   
3. Cascade Children’s Autism Center – Bellevue
   What They Offer: Diagnostic screenings, therapy referrals, and behavioral interventions tailored to children suspected of autism.
   Why Families Like It: Friendly, experienced staff known for making families feel comfortable and supported.
   Quick Appointments: Often faster than larger hospitals.
   Website: cascadechildrenscenter.org
   
   

For Adults

1. Autism Center of Washington – Seattle
   What They Offer: Adult-focused autism evaluations, including clinical interviews, observation, and testing designed specifically for adult diagnosis.
   Why Adults Choose It: Provides a respectful, supportive environment with follow-up services such as life skills coaching, social groups, and employment support.
   Helpful For: Adults who suspect they were missed earlier or want clarity on lifelong challenges.
   Website: autismwa.org
   
   
2. Touchstone Mental Health Services – Statewide
   What They Offer: Autism and mental health evaluations for teens and adults across Washington, plus behavioral health and Medicaid support.
   Why It’s Great: Affordable services, including sliding scale and telehealth options for rural areas.
   Services Included: Counseling, case management, therapy options.
   Website: touchstonementalhealth.org
   
   
3. University of Washington – Autism Research Program – Seattle
   What They Offer: Research-based adult autism screenings as part of clinical studies.
   Why It’s Unique: Great option for adults seeking a low-cost or free evaluation through participation in ongoing research.
   Good Fit For: College students, young professionals, or adults seeking better self-understanding.
   Website: uw.edu/autism
   
   

Multidisciplinary Autism Evaluation Centers

1. Developmental Disabilities Administration (DDA) – Various Locations
   What They Offer: State-funded autism and developmental evaluations for eligible children and adults.
   Who Qualifies: Individuals with special healthcare needs who meet DDA criteria.
   Why It’s Valuable: Combines medical, psychological, and therapeutic evaluations under one roof.
   Website: dshs.wa.gov/dda
   
   
2. The May Institute – Tacoma
   What They Offer: Comprehensive autism testing for children, teens, and adults, led by experienced developmental specialists.
   Why Families Choose It: Known for personalized evaluations and follow-up therapy services.
   Special Note: Accepts private insurance and Medicaid.
   Website: mayinstitute.org
   
   

Support Available After Diagnosis

Many of these centers don’t stop at testing. They also assist with:

• Speech therapy, ABA, or occupational therapy
  
  
• School advocacy and Individualized Education Program (IEP) support
  
  
• Job coaching and life skills training
  
  
• Counseling and support groups
  
  

What to Look for in an Autism Testing Provider

• Experience with your age group (child, teen, or adult)
  
  
• Clear testing steps explained upfront
  
  
• Licensed professionals (psychologists, neurologists, developmental pediatricians)
  
  
• Services offered after diagnosis
  
  
• Accepts your insurance or offers payment plans
  
  

City-by-City Guide to Autism Testing Locations in Washington

Additional Notes

• Age Matters: Some centers primarily serve children or teens, while others welcome adults or specialize in adult autism diagnosis.
  
  
• Insurance Check: Always call ahead to confirm insurance coverage or payment options, as they can vary.
  
  
• Referral Needed?: Some clinics may require a referral from your primary care provider or pediatrician, especially if you are using Medicaid or state programs.
  
  
• Wait Times: Popular centers like Seattle Children’s or The May Institute may have waitlists — consider contacting multiple places to find the earliest appointment.
  
  

Low-Cost and Free Autism Testing Resources in Washington

Getting tested for autism can be costly, especially if you don’t have insurance coverage. Luckily, Washington offers several options that provide low-cost or even free autism evaluations—especially for young children or families with limited income.

State-Funded Clinics

Washington’s Department of Children, Youth, and Families (DCYF) and Early Support for Infants and Toddlers (ESIT) programs assist families with children under age 3 to get tested and access early intervention services. These programs are often free if your child qualifies.
ESIT Website: dcyf.wa.gov/services/early-learning-child-development/early-support-infants-toddlers

University-Based Autism Clinics

Universities like the University of Washington (UW) and Seattle Pacific University sometimes offer autism evaluations through their psychology or education departments. These clinics are supervised by licensed professionals and can offer reduced fees, especially when connected to research studies.

• UW Autism Center: Offers diagnostic evaluations and research participation opportunities
  
  
• Seattle Pacific University Clinic: Provides assessments often at lower costs
  
  

Nonprofits and Grants

Several nonprofits in Washington provide scholarships, referrals, or financial support to lower the cost of autism testing. They also connect families to free resources and help with insurance navigation.

• Autism Society of Washington: autism-society.org/chapters/washington
  
  
• Washington Autism Alliance & Advocacy: wa-aaa.org
  
  

How to Choose the Right Evaluation Center

Not all testing centers are alike. Choosing the right one is key to getting helpful and accurate results. Here’s what to look for:

• Qualified Professionals: Licensed psychologists, developmental pediatricians, or behavioral specialists experienced with autism
  
  
• Age-Appropriate Services: Some clinics specialize in children, others in adults — pick the one that fits the individual’s age
  
  
• Comprehensive Evaluations: Top centers go beyond quick screenings and use trusted tools like the ADOS for in-depth assessment
  
  

Questions to Ask Before Booking

• Do you evaluate [children/teens/adults]?
  
  
• What is the typical wait time for an appointment?
  
  
• Do you accept insurance or offer payment plans?
  
  
• Will I receive a detailed written report with recommendations?
  
  

Choosing a center that clearly answers your questions and treats you with respect is a strong sign you’re in good hands.

Do You Need a Referral for Autism Testing in Washington?

Whether you need a referral for autism testing in Washington depends on where you go and how you plan to pay.

If You’re Using Insurance

Most private insurance plans—and even Apple Health (Washington’s Medicaid program)—typically require a referral from your child’s pediatrician or your primary care provider. This referral helps your insurance approve and cover the cost of the testing.

If You’re Paying Out of Pocket

If you’re not using insurance, you usually don’t need a referral. You can contact clinics or licensed psychologists directly to schedule an autism evaluation appointment.

For Schools or Early Intervention

If your child is under 3 years old, you can access testing and services directly through Washington’s Early Support for Infants and Toddlers (ESIT) program.
For children 3 and older, you can request autism testing through your local public school’s special education department—even if your child is not yet enrolled.

Autism Testing for Adults: What’s Different?

Autism isn’t only diagnosed in childhood. Many adults live undiagnosed for years because they learned to “mask” their traits or were misunderstood growing up. Increasingly, adults are seeking evaluations after recognizing signs in themselves.

What Makes Adult Testing Unique?

• Signs Are Subtle: Autism in adults often shows up as social exhaustion, anxiety, difficulty with change, or intense focus on routines and interests. These signs can be mistaken for anxiety, ADHD, or just personal quirks.
  
  
• Life Context Matters: Testing takes into account how you function in everyday life—at work, in relationships, and in family life—not just school or social settings.
  
  
• Providers Matter: Not all clinics specialize in adult autism diagnosis. It’s important to choose one with experience in adult evaluations or with licensed psychologists familiar with adult autism traits.
  
  

Why Adults Get Tested

• To better understand themselves
  
  
• To access workplace or academic accommodations
  
  
• To connect with support groups or community resources
  
  
• To finally get answers to lifelong questions
  
  

How Long Does Autism Testing Take in Washington?

Autism testing isn’t just a single appointment—it’s a step-by-step process designed to fully understand a person’s unique strengths and challenges. Here’s what you can expect along the way:

Initial Call or Intake

You’ll begin by filling out forms and may have a brief phone interview to share concerns and provide background information.

Wait Time

Depending on the clinic or specialist, wait times can range from a few weeks to several months, especially at popular or specialized centers.

Testing Day(s)

You or your child will likely spend several hours with a psychologist or specialist. This visit may include:

• Answering questions about behavior and experiences
  
  
• Completing tasks or puzzles to assess various skills
  
  
• Discussing daily life and social interactions
  
  

Parent or Caregiver Input

For children—and sometimes adults—interviews with family members or caregivers help provide a complete picture of strengths and challenges.

Final Report

After the evaluation, you’ll receive a detailed written report outlining the results and diagnosis (if applicable). This usually takes between 2 to 6 weeks.

What Happens After the Diagnosis?

A diagnosis is just the beginning—opening doors to support, understanding, and new opportunities.

If a Diagnosis Is Given

You’ll get a comprehensive report including the full evaluation, diagnosis, and tailored recommendations.

Next Steps May Include

• Therapy services like ABA (Applied Behavior Analysis) for children
  
  
• Speech or occupational therapy
  
  
• Social skills groups or life coaching for teens and adults
  
  
• School or workplace support and accommodations
  
  

Additional Benefits

• Access to Individualized Education Programs (IEP) or 504 Plans for school support
  
  
• Eligibility for government assistance programs, such as Developmental Disabilities Administration (DDA), Social Security benefits, or job training programs
  
  

More Confidence and Clarity

Many find relief and empowerment after understanding what’s been affecting them or their loved one.

Tip: Even if an autism diagnosis isn’t given, the testing process often uncovers other important information—like anxiety, ADHD, or learning differences—helping you get the right kind of support.