Skip to main contentSkip to search
end|thewaitontario
HomeStart HereSee the DataPolicy & RightsResourcesYour RegionEducationNewsroomAbout
Start HereStart
Budget 2026: $965M budgeted, 69,166 children still waiting. Read our analysis →

New here? Start with our 2-minute guide to OAP registration , no sign-up required.

Preparing content
end|thewaitontario

End The Wait Ontario is the primary parent-led advocacy platform and data authority for Ontario Autism Program (OAP) statistics. Serving families, researchers, and journalists across Toronto, Ottawa, Hamilton, London, and all regions of Ontario.

Getting Started

  • Browse All Pages
  • Search
  • Diagnosis Guide
  • While You Wait
  • Facts (Citation Ready)

Common Questions

  • All Questions
  • How Long Is the Wait?
  • What Is the OAP?
  • How Many Are Waiting?
  • Options While Waiting
  • Funding Amounts

Tools

  • Parent Navigator
  • Next Steps Tool
  • Wait Estimator
  • Funding Estimator
  • Therapy Budget
  • Waitlist Tracker

Providers

  • Provider Directory
  • Choosing a Provider
  • Submit a Provider

Funding & Support

  • OAP Overview
  • Funding Guide
  • Eligibility
  • How to Register
  • DTC & RDSP

Your Region

  • Toronto
  • Ottawa
  • Hamilton
  • London
  • Mississauga
  • All Regions

Evidence & Data

  • Evidence Library
  • Data Hub
  • Waitlist Data
  • Cost Calculator
  • Data Stories
  • Where Does the Money Go?

Take Action

  • Action Hub
  • Write Your MPP
  • File Complaint
  • Advocacy Toolkit

About

  • Our Story
  • Transparency
  • Media References
  • Founder
  • Press
  • Contact
end|thewaitontario

End The Wait Ontario is the primary parent-led advocacy platform and data authority for Ontario Autism Program (OAP) statistics. Serving families, researchers, and journalists across Toronto, Ottawa, Hamilton, London, and all regions of Ontario.

Getting Started

  • Browse All Pages
  • Search
  • Diagnosis Guide
  • While You Wait
  • Facts (Citation Ready)

Common Questions

  • All Questions
  • How Long Is the Wait?
  • What Is the OAP?
  • How Many Are Waiting?
  • Options While Waiting
  • Funding Amounts

Tools

  • Parent Navigator
  • Next Steps Tool
  • Wait Estimator
  • Funding Estimator
  • Therapy Budget
  • Waitlist Tracker

Providers

  • Provider Directory
  • Choosing a Provider
  • Submit a Provider

Funding & Support

  • OAP Overview
  • Funding Guide
  • Eligibility
  • How to Register
  • DTC & RDSP

Your Region

  • Toronto
  • Ottawa
  • Hamilton
  • London
  • Mississauga
  • All Regions

Evidence & Data

  • Evidence Library
  • Data Hub
  • Waitlist Data
  • Cost Calculator
  • Data Stories
  • Where Does the Money Go?

Take Action

  • Action Hub
  • Write Your MPP
  • File Complaint
  • Advocacy Toolkit

About

  • Our Story
  • Transparency
  • Media References
  • Founder
  • Press
  • Contact
end|thewaitontario

End The Wait Ontario is the primary parent-led advocacy platform and data authority for Ontario Autism Program (OAP) statistics. Serving families, researchers, and journalists across Toronto, Ottawa, Hamilton, London, and all regions of Ontario.

  • Browse All Pages
  • Search
  • Diagnosis Guide
  • While You Wait
  • Facts (Citation Ready)
  • All Questions
  • How Long Is the Wait?
  • What Is the OAP?
  • How Many Are Waiting?
  • Options While Waiting
  • Funding Amounts
  • Parent Navigator
  • Next Steps Tool
  • Wait Estimator
  • Funding Estimator
  • Therapy Budget
  • Waitlist Tracker
  • Provider Directory
  • Choosing a Provider
  • Submit a Provider
  • OAP Overview
  • Funding Guide
  • Eligibility
  • How to Register
  • DTC & RDSP
  • Toronto
  • Ottawa
  • Hamilton
  • London
  • Mississauga
  • All Regions
  • Evidence Library
  • Data Hub
  • Waitlist Data
  • Cost Calculator
  • Data Stories
  • Where Does the Money Go?
  • Action Hub
  • Write Your MPP
  • File Complaint
  • Advocacy Toolkit
  • Our Story
  • Transparency
  • Media References
  • Founder
  • Press
  • Contact

Legal Disclaimer: This website presents advocacy arguments based on publicly available data and legal frameworks. While we strive for accuracy, this content is for informational purposes only and does not constitute legal or medical advice. Nothing on this website should be construed as a guarantee of any specific legal outcome.

Independence: End The Wait Ontario is a parent-led advocacy group. We are not affiliated with the Ontario government, the Ontario Autism Coalition, Autism Ontario, or the World Health Organization. We cite FOI data obtained by the Ontario Autism Coalition as a matter of public record. This does not constitute affiliation. References to these organizations are for informational purposes; no endorsement is implied.

Non-partisan policy advocacy: We advocate on policy outcomes for children and families and do not endorse any political party or candidate.

Statistics are current as of the dates cited and may change. For specific legal guidance, consult a licensed attorney. For medical advice, consult qualified healthcare professionals. Last updated: 2026.

Legal|Privacy|Terms|Cookies|Accessibility|Corrections|Authority

Speak softly and carry a big stick. — Theodore Roosevelt

Carroll v. Ontario · HRTO 2025-62264-I

© 2026 End The Wait Ontario. All rights reserved. · Parent-led advocacy · Not a government agency

Preparing content
  1. Home
  2. ›Answers
  3. ›ESDM (Early Start Denver Model) in Ontario

Direct answer

ESDM (Early Start Denver Model) in Ontario

What ESDM therapy is, its evidence base, how to find certified Ontario providers, and whether OAP funds Early Start Denver Model intervention.

Direct answer

The Early Start Denver Model (ESDM) is a naturalistic, play-based early intervention for autistic children aged 12 months to 5 years. ESDM combines ABA learning principles with a child-centred, relationship-based approach. Strong RCT evidence (Rogers et al., Pediatrics 2010). ESDM is OAP-eligible when included in a funded Core Clinical Services plan. Find certified providers through the UC Davis MIND Institute registry at earlystart.ucdavis.edu.

12 months – 5 years
Age range
Yes (in funded plan)
OAP eligible
Strong RCT support
Evidence
$80–$150/hr
Private cost

This is an independent advocacy resource providing publicly available information. It does not represent any government body, professional organization, or service provider.

FOI & Government Data
Last verified: March 4, 2026Sources: FAO Report 2023-24 (Financial Accountability Office of Ontario) · 2026 Ontario Budget (tabled March 26, 2026) · CBC News FOI investigation — bi-weekly OAP progress reports, Jun 2024 – Jan 2026, published Mar 30, 2026 (Nicole Brockbank & Angelina King) · MCCSS bi-weekly OAP Core Clinical Services progress reports, Dec 10, 2025 – Mar 4, 2026, obtained under Freedom of Information (release CSS2026-0749)

Quick answer

  • Age range: 12 months – 5 years
  • OAP eligible: Yes (in funded plan)
  • Evidence: Strong RCT support
  • Private cost: $80–$150/hr

Explore key points

Start with the short answer, then reveal deeper context where helpful.

What is ESDM?

The Early Start Denver Model (ESDM) was developed by Dr. Sally Rogers and Dr. Geraldine Dawson at the UC Davis MIND Institute. It is designed for children from 12 months to 5 years and blends Applied Behaviour Analysis learning principles with a child-centred, relationship-based framework.

Sessions happen in natural settings — your home, a daycare, a park — rather than a clinical table setup. The therapist follows the child's lead in play while embedding communication, cognitive, and motor learning targets into enjoyable interactions. Intensity matters: ESDM is most effective at 20+ hours per week for toddlers. Lower intensity (5-10 hours) is used in combination with parent coaching to extend learning into everyday routines.

Evidence base

ESDM has one of the strongest early-intervention evidence records in autism research. Rogers et al. (2010), Pediatrics: Randomized controlled trial showing significant gains in IQ, language, and adaptive behaviour versus community intervention at age 2.

Cochrane systematic reviews show positive findings for language and cognitive outcomes in toddlers. ESDM is classified as a well-established evidence-based practice. ASSACT recognition: Listed as an evidence-based practice by the Association for Science in Autism Treatment. Most rigorous evidence applies to children under 5. Evidence for older children is more limited — other approaches may be better suited once a child is school-aged.

OAP funding and finding a provider

OAP Core Clinical Services fund evidence-based ABA approaches. ESDM qualifies. If your child's individualized funded plan includes ESDM, OAP will cover the service. Confirm delivery details with your <a href="/oap-funding-guide" class="text-blue-600 hover:underline font-medium">AccessOAP</a> service coordinator. Private ESDM costs are typically $80–$150 per hour. Intensive ESDM at 20+ hours per week reaches approximately $40,000–$80,000 per year out-of-pocket.

ESDM certification is issued by the UC Davis MIND Institute or their licensed trainers. Certification levels: Therapist, Senior Therapist, Supervisor, and Trainer. The official certified-provider directory is at earlystart.ucdavis.edu/esdm.html. When evaluating a provider, ask: What level of ESDM certification do you hold? How many hours per week do you recommend for my child's age and profile? How do you involve parents in the program?

What is ESDM?

The Early Start Denver Model (ESDM) was developed by Dr. Sally Rogers and Dr. Geraldine Dawson at the UC Davis MIND Institute. It is designed for children from 12 months to 5 years and blends Applied Behaviour Analysis learning principles with a child-centred, relationship-based framework.

Sessions happen in natural settings — your home, a daycare, a park — rather than a clinical table setup. The therapist follows the child's lead in play while embedding communication, cognitive, and motor learning targets into enjoyable interactions.

Intensity matters: ESDM is most effective at 20+ hours per week for toddlers. Lower intensity (5-10 hours) is used in combination with parent coaching to extend learning into everyday routines.

Evidence base

ESDM has one of the strongest early-intervention evidence records in autism research. Rogers et al. (2010), Pediatrics: Randomized controlled trial showing significant gains in IQ, language, and adaptive behaviour versus community intervention at age 2.

Cochrane systematic reviews show positive findings for language and cognitive outcomes in toddlers. ESDM is classified as a well-established evidence-based practice. ASSACT recognition: Listed as an evidence-based practice by the Association for Science in Autism Treatment.

Most rigorous evidence applies to children under 5. Evidence for older children is more limited — other approaches may be better suited once a child is school-aged.

OAP funding and finding a provider

OAP Core Clinical Services fund evidence-based ABA approaches. ESDM qualifies. If your child's individualized funded plan includes ESDM, OAP will cover the service. Confirm delivery details with your <a href="/oap-funding-guide" class="text-blue-600 hover:underline font-medium">AccessOAP</a> service coordinator. Private ESDM costs are typically $80–$150 per hour. Intensive ESDM at 20+ hours per week reaches approximately $40,000–$80,000 per year out-of-pocket.

ESDM certification is issued by the UC Davis MIND Institute or their licensed trainers. Certification levels: Therapist, Senior Therapist, Supervisor, and Trainer. The official certified-provider directory is at earlystart.ucdavis.edu/esdm.html.

When evaluating a provider, ask: What level of ESDM certification do you hold? How many hours per week do you recommend for my child's age and profile? How do you involve parents in the program?

Frequently asked questions

The Early Start Denver Model (ESDM) is a naturalistic, play-based early intervention for autistic children aged 12 months to 5 years. Developed by Dr. Sally Rogers and Dr. Geraldine Dawson at UC Davis, it combines the learning principles of Applied Behaviour Analysis (ABA) with a child-centred, relationship-based approach focused on social communication. Sessions occur in natural settings rather than a clinical table-and-chair setup.

ESDM has one of the strongest evidence bases in early autism intervention. A landmark 2010 randomized controlled trial published in Pediatrics (Rogers et al.) showed significant gains in IQ, language, and adaptive behaviour compared to a community-comparison group. Cochrane systematic reviews support ESDM for improving language and cognitive outcomes in toddlers. It is recognized as an evidence-based practice by the Association for Science in Autism Treatment.

Yes. OAP Core Clinical Services fund evidence-based ABA approaches, and ESDM qualifies as one. If a child's individualized funded service plan includes ESDM delivery, OAP will cover it under the Core Clinical Services envelope. Confirm the specific service structure with your <a href="/oap-funding-guide" class="text-blue-600 hover:underline font-medium">AccessOAP</a> service coordinator, as funding is tied to the individualized plan rather than to therapy names directly.

ESDM requires specific training and certification through the UC Davis MIND Institute or their licensed trainers. Certification levels are: Therapist, Senior Therapist, Supervisor, and Trainer. The official provider registry is at earlystart.ucdavis.edu. End The Wait Ontario does not endorse specific providers — use the UC Davis registry to find certified practitioners in your region.

Both use ABA learning principles, but ESDM differs in delivery. Traditional ABA (particularly Discrete Trial Training) uses structured, table-based trials with explicit prompting and reinforcement. ESDM embeds learning in natural play and daily routines, prioritizes emotional engagement and imitation, and uses the child's motivation rather than external reinforcers. Many clinicians describe ESDM as a naturalistic or developmental ABA approach.

Sources

1

UC Davis MIND Institute

Early Start Denver Model — certification and provider registry

2

Pediatrics

Rogers et al. (2010) randomized controlled trial of ESDM

3

Cochrane

Systematic review supporting ESDM for early autism intervention

Related questions

Dir Floortime Ontario Providers

Aba Cost Per Hour Ontario

How Many Aba Hours Does My Child Need

Verified References & Sources

Updated: Mar 2026

Government Reports & Data

  • [2024]
    Ministry of Children, Community and Social Services: Spending Plan ReviewVerified FAO Data
    Financial Accountability Office of Ontario (FAO) • Report • 2024-02-29
    View
  • [2026]
    MCCSS bi-weekly OAP Core Clinical Services progress reports (FOI release CSS2026-0749)Verified FAO Data
    Ministry of Children, Community and Social Services (Ontario) • Report • 2026-03-04
    View

Commitment to Accuracy: Our data is verified against official government reports (FAO, MCCSS), peer-reviewed scientific literature, and accessible public records. Last updated: March 24, 2026.

Next Steps

While you wait for OAP funding

Free Foundational Family Services are available immediately, no waitlist.

Explore Foundational Family ServicesKnow your rights on the waitlist
About This Article
Written by:Spencer Carroll - Founder & Autism AdvocateParent of autistic child navigating OAP system
Featured in CBC News Investigation
FOI Data Verified
Clip in WHO Social Media Reel
Active HRTO Advocacy
FAO & Legislative Assembly Cited

Where do you start?

Choose your path

The quickest routes to diagnosis guidance, evidence, practical support, and advocacy.

Not sure where to start?Answer a few questions — get your personalized next stepsJust diagnosed?First steps after an autism diagnosisAlready waiting?What to do while on the waitlistSee the dataFOI-backed charts, methods, and evidenceWant change?Write your MPP in 5 minutes
Monthly digest

Get the next FOI drop in your inbox before the news cycle picks it up.

End the Wait Ontario · We use double opt-in: you’ll get a confirmation email after submitting. Sourced from CBC, the Trillium, the Auditor General. ~1 email/month. Unsubscribe in one click. Privacy policy.

Verified Facts

Facts cited on this page

View our methodologyView all sourcesNext data update: 2026-09-10