What is a Single-Entry Model?

A Single-Entry Model (SEM) is a healthcare service-design pattern in which all referrals for a given service category enter through one centralized intake, are assessed and triaged together, and are matched to the next available qualified provider, regardless of which clinic, hospital, or provider originally received the referral. SEMs treat all providers in a region as a pooled resource rather than separate parallel queues.

What evidence shows SEMs reduce waits?

The Saskatchewan Surgical Initiative (2010-2014) reduced patients waiting more than 3 months for surgery by 75%, from 15,352 to 3,824, through centralized registries, pooled referrals, and capacity expansion. Vancouver's OASIS and Winnipeg's Central Intake achieved similar results for osteoarthritis and specialty referrals. The UK NHS reduced average physiotherapy waits from 16 weeks to 4 weeks and non-attendance from 18% to 2%.

Why isn't AccessOAP already a Single-Entry Model?

AccessOAP is a single-entry intake organization. The OAP architecture has the central intake but lacks the most important feature of a working SEM: a pooled-provider matching system. Children registered with AccessOAP are placed in a chronological queue and wait years for an "invitation", not matched to the next available qualified service-delivery provider as soon as they need service. The result is the bottleneck shown in current FOI data: enrolment growth (~11/month) is far below registration growth (~918/month), so the queue grows.

What would SEM reform of the OAP look like?

Three structural changes: (1) Convert AccessOAP from a registration-and-invitation system to a pooled provider-matching system. Children would be matched to the next available qualified provider in their region as soon as Determination of Needs is complete. (2) Treat all OAP-approved providers in a region as a single pooled resource. Provider capacity becomes the constraint, not chronological invitation order. (3) Expand provider capacity in parallel through workforce-development funding (BCBA training, RBT certification, university-affiliated programs). Without capacity expansion, pooled matching alone moves the bottleneck.

Would SEM alone clear the waitlist?

No. At current net clearance rates, the waitlist grows net ~907/month while active funding grows ~242/month, so the queue continues to widen. A child registering today would receive funding well past the WHO-recognised early-intervention window (ETWO analysis of MCCSS FOI data (obtained by the Ontario Autism Coalition)). The FAO estimated $1.35B/year is needed to serve all ~40,700 registered children at 2018-19 service levels. The 2026-27 budget is $965M, a $385M annual shortfall. A SEM does not solve underfunding; it reduces friction in the system that exists. Both reforms are needed: structural (SEM) and fiscal (close the $385M gap).

Citable source facts(1)Question-and-answer pairs with their source and verification link.

How many children are on the Ontario autism waitlist in 2026?

Verified

As of May 13, 2026, 91,974 children are registered with the Ontario Autism Program. However, only 20,711 (22.5%) have an active Core Funding Agreement. This represents ~300% growth in registrations since 2019, with 71,263 children still waiting for essential funding.

Source: MCCSS FOI via OAC · Mar 2026, FAO Report 2024 · Verify Link

Policy Brief

Saskatchewan reduced surgical waits 75%. Ontario can do the same for autism.

A Single-Entry Model (SEM) is the proven structural reform behind major Canadian and international waitlist reductions. Applied to the Ontario Autism Program, it could materially shrink the gap between registration and service, without first closing the $385M funding gap.

The structural argument in 5 facts

91,974 children registered with the OAP. 71,263 (77.5%) waiting. The waitlist grows net ~907/month while active funding grows ~242/month. The queue widens.
AccessOAP is a single intake but does not match families to the next available provider. Children wait by registration date for an "invitation", not by capacity.
Saskatchewan Surgical Initiative (2010-2014) reduced waits >3 months by 75% using centralized registries + pooled referrals + capacity expansion.
UK NHS reduced physio waits from 16 to 4 weeks and non-attendance from 18% to 2% with the same architecture.
A SEM does not eliminate the $385M annual underfunding gap. It reduces the friction in the system that exists, and is achievable without new appropriations.

The reform: three structural changes

1
Convert AccessOAP from invitation-by-date to provider-matching
Today, children registered with AccessOAP wait, sometimes for years, for an "invitation" issued by registration date. In a working SEM, a child whose Determination of Needs is complete is matched to the next available qualified provider in their region as soon as that capacity exists. This eliminates the administrative delay between "you can be served" and "you are being served."
2
Treat all OAP-approved providers in a region as a pooled resource
Today, families select a provider after their funding invitation, and discover the provider has its own wait. In a working SEM, all providers in a region share a single capacity pool. The constraint shifts from chronological invitation order to actual delivery capacity. The Saskatchewan Surgical Initiative made exactly this shift; results: 75% wait reduction.
3
Expand workforce capacity in parallel
Pooled matching alone moves the bottleneck, without provider capacity, families are still rationed. The FAO has noted the OAP requires significant workforce expansion. Direct workforce funding: BCBA training pipelines, RBT certification subsidies, university-affiliated programs (McMaster, Western, U of T), incentives for rural practice. Treat workforce as part of the structural reform, not an afterthought.

The evidence base

Single-Entry Model variants have produced measured wait-time reductions across multiple healthcare service categories. The OAP architecture would be applying techniques with documented effectiveness, not experimenting in a new domain.

Program	Period	Documented result	Mechanism
Saskatchewan Surgical Initiative	2010-2014	75% reduction in patients waiting >3 months (15,352 → 3,824)	Centralized registries + pooled referrals + capacity expansion
Vancouver OASIS	Ongoing	Significant osteoarthritis wait reduction	Single-Entry Model for orthopaedic referrals
Winnipeg Central Intake	Ongoing	Reduced specialty-referral waits	Pooled specialty-referral intake
UK NHS Physiotherapy SEM	2000s	Average wait 16 weeks → 4 weeks; non-attendance 18% → 2%	Centralized referral intake with patient choice
NHS England 18-Week Target	2008	Achieved 18-week max referral-to-treatment	Funding boosts + targets + performance management
Ontario Rehab Wait Strategy	2010s	Improved client throughput	Acuity prioritization + self-management education + audits (85% sites)

What SEM does not solve, and why both reforms are needed

A Single-Entry Model reduces friction. It does not create new funding. The FAO 2020 analysis found that serving all registered children at 2018-19 service levels would require $1.35B/year. The 2026-27 OAP budget is $965M. The annual shortfall is $385M.

Even an optimally-implemented SEM cannot deliver care that is not funded. The structural reform (SEM) and the fiscal reform (close the $385M gap) are complementary. Both are needed. SEM is achievable without new appropriations and can begin immediately. The fiscal gap requires sustained budget commitment over multiple cycles.

See Cost to Clear the Waitlist for the fiscal-reform analysis.

A 24-month implementation timeline

Months 0-6
Design phase. Convene a working group with AccessOAP, MCCSS, FAO, OAC, ARCH, A4A, and provider representatives. Specify pooled-matching algorithm; define provider capacity reporting. Workforce expansion plan begins.
Months 6-12
Pilot phase. Implement pooled matching in 1-2 regions (e.g., Eastern Ontario + a Northern region). Compare wait times to control regions. Refine based on data.
Months 12-18
Provincial rollout. Scale pooled matching to all regions. Workforce expansion produces first new BCBA/RBT cohorts.
Months 18-24
Measurement & refinement. Public quarterly reporting on wait times, capacity, and outcomes. Performance management against targets (analogous to NHS 18-week target). External audit of the pooled-matching system to ensure equitable access.

Primary sources

Policy Reform

Send this proposal to your MPP.

A Single-Entry Model is achievable without new appropriations. It can begin immediately. It is the structural reform Ontario's autism families have been waiting for.

Email Your MPP (2 min)Read the Carroll v. Ontario case

Outcome analysis of the Saskatchewan Surgical Initiative (2010-2014). PubMed Central
Autism Services Financial Review. Financial Accountability Office of Ontario (2020)

About This Article

Written by Spencer Carroll

Founder & Autism Advocate

Parent of autistic child navigating OAP system

Evidence on this page

The source chain stays visible.

Key claims are paired with their source, evidence tier, and verification date so readers can inspect the public record directly.

Facts4

Sources3

91,974

children are registered in the Ontario Autism Program

Government / peer-reviewedMCCSS FOI via OAC · May 2026Verified 2026-08-10

According to the FAO (2020 report), OAP funding covers less than one-third of estimated need at 2018-19 service levels

Government / peer-reviewedFinancial Accountability Office of Ontario (2020)Verified 2020-07-21

$965M

Ontario allocated $965M to the Ontario Autism Program in 2026-27

Government / peer-reviewedGovernment of Ontario, Ministry of Finance (2026)Verified 2026-03-26

22.5%

Only 20,711 children have active funding agreements (22.5%), less than one in four

Government / peer-reviewedMCCSS FOI via OAC · May 2026Verified 2026-08-10

Last system verification: 2026-08-10. Next scheduled update: 2026-11-05.

View methodology Browse every source