Screen early, refer early
M-CHAT-R/F at 18 and 24 months is standard. Earlier identification can mean earlier support. See the evidence summary.
What happens after an autism diagnosis in Ontario?
Post-diagnosis: registration with AccessOAP. Provincial waitlist: 91,974 children registered, 71,263 (77.5%) waiting. 5+ years for families registered in August 2021 (community-reported, Ontario Autism Coalition, July 2026).
Ontario Autism Coalition · MCCSS OAP figures · Verified 2026-08-10
In brief
Clinician quick reference
- Ask each diagnostic hub about current waits and providers about fees.
- Standard screening: M-CHAT-R/F at 18 and 24 months; Social Communication Questionnaire (SCQ) for older children.
- Post-diagnosis: registration with AccessOAP. Provincial waitlist: 91,974 children registered, 71,263 (77.5%) waiting. 5+ years for families registered in August 2021 (community-reported, Ontario Autism Coalition, July 2026).
- Foundational Family Services are available immediately upon OAP registration (no wait): caregiver workshops, group programs, transition supports.
- Federal supports include the Disability Tax Credit, Child Disability Benefit and RDSP. Check CRA and ESDC for current eligibility and limits.
- Other conditions that may merit follow-up include ADHD, anxiety, gastrointestinal issues, sleep disorders, epilepsy and intellectual disability.
General information only, not a diagnosis, treatment plan, crisis service, or individual estimate. Confirm your next step with the linked source or a qualified professional.
Diagnostic hub directory
The directory below lists 10 publicly funded diagnostic hubs and regional children's treatment centres, plus a private option. Ontario does not publish per-hub diagnostic wait times, so the waits below are estimates — confirm current waits with each hub directly. The private fee shown is a dated sample of advertised fees, not an Ontario average.
| Hub | Region | Wait estimate | Referral route | Source |
|---|---|---|---|---|
| CHEO (Children's Hospital of Eastern Ontario) | Ottawa | Ask the hub | Primary care referral or paediatric referral | CHEO (Children's Hospital of Eastern Ontario) |
| Holland Bloorview Kids Rehab | Toronto | Ask the hub | Centralized intake | Holland Bloorview Kids Rehab |
| SickKids, Autism Research Unit | Toronto | Ask the hub | Specialty referral | SickKids, Autism Research Unit |
| McMaster Children's Hospital | Hamilton | Ask the hub | Centralized intake | McMaster Children's Hospital |
| Surrey Place | Toronto | Ask the hub | Direct referral; some self-referral | Surrey Place |
| ErinoakKids | Mississauga / Peel Region | Ask the hub | Centralized intake | ErinoakKids |
| NEO Kids, Health Sciences North | Sudbury / Northeastern Ontario | Variable | Primary care referral | NEO Kids, Health Sciences North |
| George Jeffrey Children's Centre | Thunder Bay / Northwestern Ontario | Variable | Primary care referral | George Jeffrey Children's Centre |
| Thames Valley Children's Centre (TVCC) | London / Southwestern Ontario | Ask the hub | Centralized intake | Thames Valley Children's Centre (TVCC) |
| Children's Treatment Network | York / Simcoe | Variable | Centralized intake | Children's Treatment Network |
| Private psychologists / developmental paediatricians | Province-wide | Ask the clinic | Direct booking; ask the provider about fees | Private psychologists / developmental paediatricians |
Clinical patterns to know
Public + private parallel referral
Ask the local hub about its current wait and private providers about availability and fees.
DTC eligibility = financial stack
Once you sign T2201 confirming DTC eligibility, the family may be able to access the DTC, Child Disability Benefit, RDSP and provincial supports. This single form often has the largest financial impact of the diagnostic process.
What families need from primary care during the OAP wait
5+ years for families registered in August 2021 (community-reported, Ontario Autism Coalition, July 2026). During this period, primary care is often the single most consistent professional contact a family has. Concrete things that make a measurable difference:
- Sign the T2201 promptly. Delays in DTC approval delay every downstream federal benefit.
- Provide letters for school IEP requests. Schools defer to clinical letters under PPM 140; the family has no other professional source.
- Screen for comorbidities at every visit. ADHD, anxiety, sleep, GI, seizure activity. Many of these are addressable in primary care.
- Document harm of waiting. If parents are paying out-of-pocket for therapy or sacrificing work hours, brief documentation in the chart can support future advocacy or HRTO claims.
- Refer for respite + family mental health. Caregiver burnout is the leading predictor of family crisis. Connection to SSAH, OAP Foundational Family Services, family therapy.
- Coordinate with the school. A short phone call or letter to the IEP team often gets the family supports they have been requesting unsuccessfully.
Citable patient handout
Print or share this URL with families at the time of referral or diagnosis. The link below is a stable, citation-ready landing page maintained against current FOI data.
For families:
- Read "Just diagnosed, what to do this week"
- Register with AccessOAP (free, takes 30 minutes)
- Apply for the Disability Tax Credit (federal; check current eligibility and limits with CRA)
- Connect with "While you wait" resources
- Track wait time at OAP Waitlist 2026, current data
The OAP waitlist figures on this page are FOI-derived — MCCSS numbers released to the Ontario Autism Coalition (May 2026). The cost and wait-time figures are not FOI data: assessment fees are dated samples of advertised provider prices, and therapy costs are OAC-reported estimates. Citation: End The Wait Ontario, endthewaitontario.com.
Frequently asked questions
Public hospital diagnostic hubs (CHEO, Holland Bloorview, McMaster Children's, SickKids, Surrey Place, ErinoakKids, JMCC, ThriveKids, Children's Treatment Network, NEO Kids, George Jeffrey, TVCC, plus Section-22 hospitals) accept primary-care referrals. Ask each hub about its current wait.
Ontario uses the M-CHAT-R/F (18-month and 24-month checkpoints) as a primary-care screening tool. Positive screens warrant referral. The Rourke Baby Record incorporates ASD surveillance. For older children with concerns identified by school or family, the Social Communication Questionnaire (SCQ) and the Autism Diagnostic Observation Schedule (ADOS-2, administered by trained clinicians at hubs) are standard.
After diagnosis, families register with AccessOAP (accessoap.ca, 1-833-425-2445). Provincial waitlist: 91,974 children registered, 71,263 (77.5%) still without a funded-service agreement. 5+ years for families registered in August 2021 (community-reported, Ontario Autism Coalition, July 2026). Foundational Family Services are available immediately upon registration (caregiver workshops, group programs, transition supports).
Yes, refer to: AccessOAP (1-833-425-2445), Autism Ontario regional chapters, Foundational Family Services, the Disability Tax Credit (federal; see CRA and form T2201), the Child Disability Benefit (federal), school-based supports under PPM 140, and respite-care funding through SSAH (Special Services at Home). End The Wait Ontario maintains a parent-facing resource library at endthewaitontario.com.
Yes, co-occurring conditions can also merit follow-up, including ADHD, anxiety, depression, gastrointestinal issues, sleep disorders, epilepsy, intellectual disability and learning disabilities.
MCCSS FOI via OAC · May 2026 · Updated May 13, 2026
Help families get through the wait.
The most consistent professional contact a family has during the multi-year OAP wait (as of May 2026) is often their family doctor. Small acts of coordination compound.
- MCCSS Ontario Autism Program figures, May 13, 2026, obtained by the Ontario Autism Coalition under Freedom of Information. Ministry of Children, Community and Social Services (Ontario), obtained by the Ontario Autism Coalition (May 13, 2026)
- Ministry of Children, Community and Social Services: Spending Plan Review (2024). Financial Accountability Office of Ontario (2024)
Next step, sources, and page context
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Cited primary record
Primary source documentation and citation trail for this page.
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Last system verification: 2026-08-10. Next scheduled update: 2026-11-05.
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Written bySpencer Carroll
Founder & Autism Advocate
Lived experience: Parent of autistic child navigating OAP system