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DSO Central East Region

We serve

  • York
  • Kawartha Lakes
  • Peterborough
  • Simcoe
  • Northumberland
  • Haliburton
  • Durham
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  • 1. Main Office

    240 Edward St., Unit 3,
    Aurora, ON L4G 3S9

Contact information

Office hours

  • Monday - Friday

    8:30 a.m. to 4:30 p.m.

COVID-19 update

We understand the tremendous impact that COVID-19 is having on the lives of our clients, families, and staff; especially those dealing with mental health challenges, children with complex needs and adults with developmental disabilities who require support.

We continue to carefully monitor updates provided by Health Canada, along with those from the federal and provincial governments.

In an effort to help prevent the spread of this virus in our community, we have made the decision to close our offices to the public until further notice.

Office Closures
Our Aurora and Markham offices, as well as, our satellite offices in Durham and Simcoe will be closed to the public until further notice.

Continuing to offer you support, virtually
Although we will not be offering in-person support, we understand that now, more than ever, you still need to remain connected to us. Here’s how you can continue to reach out to us for support:

  • Developmental Services Ontario Central East Region
    Call us toll-free at 1-855-277-2121, locally at 905-953-0796, (TTY) 905.898.1609, or connect with us online at

What about events?
All YSSN/DSO CER events taking place between March 17 and April 6, 2020, are canceled. We invite you to stay-up-to-date by joining us on social media (Facebook, Twitter, Instagram) or subscribing to our e-newsletter.

Next steps
We will continue to monitor the situation and will update you on any changes as they occur. Please check our website for updates and stay-up-to-date by joining us on social media (Facebook, Twitter, Instagram) or subscribing to our e-newsletter.

About your DSO agency

DSO CER is funded by the Ministry of Children, Community and Social Services, and is administered by York Support Services Network.

We follow our agency’s Mission: Communicate. Connect. Support.

To find out more about us visit

MCCSS Compliance

The Ministry of Children, Community and Social Services (MCCSS) conducts compliance inspections of all ministry-funded Developmental Services Ontario agencies under the Services and Supports to Promote the Social Inclusion of Persons with Developmental Disabilities Act, 2008 (SIPDDA). DSO CER was found to be in compliance with Ontario Regulation 299/10 of SIPDDA (Quality Assurance Measures) and/or policy directives applicable to MCCSS-funded services and supports for adults with developmental disabilities. View the compliance letter.

Update your information

It is important to keep your area DSO up to date when there are any changes in your situation. For example, call us if you are planning to move or change your phone number. This helps us to make sure that we have your current contact information and to confirm that you wish to remain on the service registry.