Autism Spectrum Disorder (ASD) Diagnostic Hub

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Children’s Treatment Network (CTN) is the lead for the Ontario Autism Diagnostic Hub in Central Region. Additional funding provided by the Ministry of Children, Community and Social Services (MCCSS) will help more kids and youth receive the diagnostic assessments they need.

Central Region includes:

Simcoe
York
Dufferin
Halton
Peel
Waterloo Region
Wellington County

What We Do

CTN, ErinoakKids and KidsAbility provide autism diagnostic services for kids and youth.

Eligibility

This service is for kids and youth up to their 18th birthday who have concerns about autism and live in the local region.

Referrals

If your child’s name is already on a waitlist for an autism diagnostic assessment with one of these agencies, there is no further action required.

If your child’s name is not on a waitlist for an autism diagnostic assessment, please contact the agency listed for your local region to get information about these services. These services require a physician referral.

Simcoe County and York Region
Children’s Treatment Network
Toll Free: 1-866-377-0286
Learn more about CTN’s Diagnostic Autism Clinical Services.

Dufferin, Halton and Peel
ErinoakKids
Intake: 905-855-2690, then press 1
Toll Free: 1-877-374-6625 then press 1

Kitchener, Waterloo Region, Cambridge, Guelph and Wellington County
KidsAbility Centre for Child Development
Intake: 519-886-8886 ext. 1214
Toll Free: 1-888-372-2259 ext. 1214

After an Autism Diagnosis Webinar

'After an Autism Diagnosis' is a monthly webinar for families and caregivers living in Simcoe County and York Region who have a child that has recently been diagnosed on the autism spectrum. Along with providing information and assisting with navigating resources, the webinar also offers support strategies and allows participants to connect with other families with similar experiences. Families will hear from a CTN employee that has lived experience raising an autistic child.

View and register for an upcoming webinar.

If you have any questions or require interpretation support, please email Niki Huxtable at nHuxtable@ctnsy.ca.

Resources

For general tools, resources and supports, visit the Online Resource Centre.

Click on this link for more information on the Ontario Autism Diagnostic Hubs (also available in French).

Visit the MCCSS website for more information about Autism assessment and diagnosis.

EVENTS

Kerry's Place - From Escalation to Connection - Online

October 19, 2026

From Escalation to Connection is designed to help participants understand and recognize the early signs of escalation.

Kerry's Place - Family Fun Night - Newmarket

October 19, 2026

Caregivers will stay and participate and siblings are more than welcome too! Take part in a variety of family-friendly activities designed to engage all ages in play, creativity, and connection.

SURVEY

As a parent/caregiver, I would like to learn more about:

Behaviour Regulation Strategies
Mental Health and Self-Care for Caregivers/Parents
Information Related to School or Special Education
Funding and Financial Planning Resources and Information for Kids and Youth with Disabilities
Transition Planning (school and adulthood)