Motor Mouth Speech & Language

Who is Marnie Loeb?

Marnie Loeb

Marnie Loeb, M.Cl.Sc., SLP(C), Reg. CASLPO is the owner and operator of Motor Mouth Speech & Language. She is an experienced speech-language pathologist, knowledgeable in both childhood and adult communication and swallowing disorders.

As a teenager, Marnie started a small business as a piano teacher. Through this, she honed her one-on-one teaching skills and realized she had a gift for finding ways to motivate her students. Marnie always dreamed of being a journalist and reading the evening news. Then one day, her mother showed her a newspaper article about speech-language pathology, and instantly the connection between her two passions was realized. Marnie has enjoyed a rewarding and successful career as a speech-language pathologist for 20 years and hasn't looked back!

Music continues to be a big part of Marnie's life. You may see her playing piano and accordion in the local bluegrass band Speed River Dirty Birds. In addition, Marnie participates in weekly curling leagues at Guelph Curling Club. Summers are filled with camping and cottage trips, along with several nights a week of recreational sports and coaching.

Marnie is grateful for the opportunity to meet and work with so many families through her work, and attributes any successes in therapy to the children and families, who in turn teach her so much. Marnie acknowledges the many supports she has in her family and community that have made Motor Mouth the friendly, local speech therapy service that it has become.

Professional Experience

Certified Speech-Language Pathologist

Marnie has worked across all healthcare and community settings. At The Scarborough Hospital and University Health Network she focused on medical speech-language pathology (including swallowing, aphasia, dementia including Alzheimer's Disease, stroke, brain tumours, Parkinson's Disease and other nervous system diseases). At Community Therapy Services, Marnie treated residents in long term care facilities.

Marnie's experience working with children has included settings such as developmental clinics, community health centres, community centres, schools, and hospitals. Marnie was part of autism spectrum disorder diagnostic teams at Holland-Bloorview Kids Rehab and St. Joseph's Health Centre, where she was solely responsible for the Paediatric Speech and Language Clinic.

From 2014-2020, Marnie was the Speech-Language Pathology Advisor for Speech-Language & Audiology Canada, the national association for her profession. In 2013, Marnie appeared on Dr. Marla & Friends and was featured in a promotional video to discuss her approach to children's speech-language services at St. Joseph’s Hospital.

In addition to private work at Motor Mouth, Marnie is a sessional lecturer in Early Childhood Studies at University of Guelph-Humber, teaching disability studies coursework for future teaching professionals. She was appointed as a Board Director and Governance Committee member at Guelph Community Health Centre, where she was involved in developing policies that guide the strategic direction of the organization as well as supporting new initiatives that enhance the Guelph community.

Professional Associations & Memberships

Guelph Speech Therapist

Marnie is licensed to practice Speech-Language Pathology by the College of Audiologists and Speech-Language Pathologists of Ontario (CASLPO).


In 2001, Marnie received a master's degree in speech-language pathology from Western University. Prior to this, she received an advanced honours degree in linguistics and psychology from University of Manitoba. Marnie studied at the Royal Conservatory of Music and achieved Grade 9 piano / Grade 10 theory. In addition to a variety of professional development courses related to speech-language pathology (including Hanen, PROMPT, Lidcombe, Orton-Gillingham literacy instruction), Marnie attended improv courses at Second City Training Center. In 2013, Marnie was awarded the rank of Lecturer at University of Toronto in the Department of Speech-Language Pathology. She is currently pursuing a Certificate in Adult Education through Mohawk College, and volunteers annually at McMaster University, conducting interviews for prospective speech-language pathology students.