Contact Us

General Telephone: 905.898.6455 or toll free 1.866.257.9776
General Fax: 905.898.1171
General Email:

The York Support Services Network (YSSN) website is not intended to be used in emergency situations.  If you are in need of immediate emergency help, contact our Crisis Hotline 1.855.310.COPE (2673) or go to your local emergency room. YSSN cannot and does not guarantee an immediate response to emergency requests that are received by electronic mail.  Further, YSSN assumes no responsibility for responding to emergency requests that are  received by electronic mail.

Situations which require immediate emergency help include:

General Mailing Address (Administration Office)

York Support Services Network
240 Edward Street, Unit 3
Aurora, ON   L4G 3S9

York Support Services Network
(South Office):
50 McIntosh Drive, Ste 239
Markham, ON L3R 9T3

For Inquires About...

Adult Developmental Services, call:

Developmental Services Ontario (DSO)
1.855.277.2121 or (TTY) 905.898.1609

Children’s Developmental Services, call:

YSSN Developmental Services Access
1.866.257.9776 ext. 2574

Mental Health Services, call:

Streamlined Access
289.340.0348 or toll free 1.844.660.6602

Crisis Response Service, call:

1.855.310.COPE (2673)
(TTY) 1.866.323.7785

Client Relations and Your Feedback

If you have any concerns, complaints, positive experiences or suggestions that you would like to share with us, please visit the Client Relations section for more information on the process and to access our online feedback surveys. 

Privacy Officers

If you have a privacy concern related to your personal health information please contact our Privacy Officers, Marilyn Graham (ext. 2240) or Scott Belisle (ext. 2371) at 905.898.6455, or email them both directly at

Connect on Social Media

You can also connect with us on Facebook, Twitter and Instagram and subscribe to our YouTube channel and receive news and events updates by subscribing to our e-newsletter.