Parkinson Canada


Henninger Speech and Language Centre


Speech Language Pathologist

Area of expertise

Our speech-language pathologist, Lynn Mark, has been working with individuals with Parkinson’s disease for over 12 years. She is certified in both Lee Silverman Voice Treatment (LSVT) and SPEAK OUT! therapy protocols.


Our services include an assessment that includes gathering of an extensive case history and an evaluation of vocal function and swallowing, if needed. An ENT referral is sometimes made before beginning any therapy, in particular, if vocal quality is significantly compromised. Assessment findings will determine if the individual is a good candidate for treatment and which treatment approach best fits their needs and profile. The treatment protocols offered include SPEAK OUT! and LSVT Loud. SPEAK OUT!, developed by the Parkinson’s Voice Project, focuses on producing a stronger, clearer voice. It is based on the concept of intent and strengthens the muscles used for speaking and swallowing. SPEAK OUT! is comprised of an assessment session and 12 treatment sessions. Clients attend 45-minute sessions, 3 times per week for 4 consecutive weeks, and complete daily home practice. Once treatment is complete, the Parkinson’s Voice Project hold LOUD crowd groups and free Facebook practice sessions. This is essential for maintaining the gains achieved in therapy. Lee Silverman Voice Treatment (LSVT) is an intensive treatment protocol that supports people with Parkinson’s disease to improve vocal loudness and clarity. It is comprised of an assessment session and 16 treatment sessions. Clients attend 1-hour sessions 4 times per week for 4 consecutive weeks and complete daily practice at home.

How to register

Call or Contact Us


40 Bell Farm Road, Suite 13, Barrie, ON L4M 5L3
(opens in a new window)

Phone Number

(705) 725-0154

Report misinformation or corrections

If you encounter any information on our website that you suspect is incorrect or inaccurate, kindly assist us in upholding the highest quality content by reporting it. Email: Your feedback is important to us, and we are dedicated to maintaining the accuracy of our information.

Supply Feedback

This directory is for educational purposes, it is not intended to replace the advice or instructions of a professional healthcare practitioner, or to substitute for medical care. Contact a qualified healthcare practitioner if you have any questions concerning your care.

Back to top