The PDD Diagnostic Clinic is designed for children suspected of having a pervasive developmental disorder (PDD) or autism and for children who have already been diagnosed and who need assessment. It is a diagnostic clinic only.

Services provided at the PDD diagnostic clinic

  • Identification of the child's clinical profile using specialized tools (conducted by a multidisciplinary team)
  • Referral to appropriate resources for subsequent therapy
  • Prescription of medication and follow-up in collaboration with the treating physician

Generally, the assessment process only requires a few visits. Additional meetings may be necessary to establish a concrete diagnosis of pervasive developmental disorder (PDD).

Parents may receive post-assessment follow-up to discuss the findings, go over any problems, and get answers to questions about diagnosis, prognosis and treatment.

How to access the PDD Diagnostic Clinic

If you are looking to have a child under the age of 18 evaluated in our clinic, you must have the following doucments filled-out by the child's peadiatrician or family doctor:

  • A request for an autism evaluation
  • A short note advinsing us of the current status of the child physical healt.

Once you ahve these documents, we ask that you send a copy to us by fax (see below). Please indicate the child's full name, address, telephone number, date of birth and medical card number with the expiry date. A member of our team will contact you within 72 hours to confirm the infomation, and if required, place the child on our waiting list. In the meantime, you may request psychosocial services form your CLSC.

Parents of children who are not living on the island of Montreal should first go to their nearest CSSS. After evaluating the situation, the team at the CSSS offers various services such as psychosocial follow-up, nursing care, psychological treatment and case management. If needed, the CSSS will refer your child to the nearest PDD Diagnostic Clinic.


Douglas Institute
PDD Diagnostic Clinic
Burland Pavilion
6875 LaSalle Boulevard
Montreal (Quebec) H4H 1R3

Phone: 514-761-6131, ext. 3085
Fax: 514-762-3041