Heidi Cornwell, B.App.Sc (Speech Pathology), CPSP, Clinic Director, has been working as a Speech Pathologist within the Northern Beaches for a  number of years. Heidi has experience in early intervention for children with speech and language delay, with a special interest in the area of Childhood Apraxia of speech (Dyspraxia). Heidi has worked closely with preschools and schools in the area to provide support for educators working with children with communication difficulties. She is trained in Lidcombe Program for stuttering, PROMPT, Sounds-Write, Applied Behaviour Analysis (ABA), and many more. If you have any questions about the clinic please feel free to contact her at any stage.

Farran De Wet, B.Arts Speech Language and Hearing therapy, CPSP completed her Speech Pathology Degree at the University of Witwatersrand in South Africa. Farran has worked throughout the world in New Zealand, Qatar and Sydney. Her extensive experience with a variety of different families means that she sees clients across a wide range of age groups with different areas of need. Farran is ABA trained (Applied Behaviour Analysis), Sounds-Write trained, and Hanen certified in ‘It takes two to talk’ and ‘More than words’. Farran’s passion for Speech Pathology means that she creates quick connections with all of the clients and families she works with.

Rachel Madden, B. Sc. (Hons) Speech & Language Therapy, CPSP is an experienced Speech Pathologist who has worked in Ireland, London and Sydney. Rachel’s clinical experience has included working in community health centres,  preschools, mainstream schools and private clinics. She has experience working closely with teachers, paediatricians, psychologists and other professionals and strives to deliver a child-centred service.  Rachel has worked with children who present with a wide range of communication difficulties and has a particular interest in school age language and literacy difficulties as well as preschool children with speech and language delays.  Rachel is trained in Key Word Sign (KWS), SCERTS, Attention Autism and Sounds-Write.

Kathren Lemmetty, B.App.Sc (Speech Pathology), CPSP. Kathren completed her Speech Pathology Degree at Sydney University and has been working with families from a variety of backgrounds for the past 20 years in private practice in Sydney’s West, Northern Beaches and on the Gold Coast.  Kathren has worked with children with ASD, genetic disorders, speech delay, dyspraxia, stuttering, developmental delays, learning difficulties, and delayed literacy skills. She is trained in the Spalding Method of Literacy instruction – a direct, explicit, systematic, rule based program for teaching reading and spelling. Kathren is also trained in ABA (Applied Behavioural Analysis) and the Triple P Positive parenting program to assist in the management of behaviour.

Rebecca King, B.App.Sc (Speech Pathology), CPSP, is a passionate Speech Pathologist who works at our Northern Beaches Clinic in Balgowlah.  Rebecca has experience working within private practice on Sydney’s Northern Beaches and North Shore with expertise in supporting children with a variety of communication needs, including a special interest in assisting kids to overcome challenges with speech, language and literacy. Rebecca’s enthusiasm ensures that therapy is a fun and enjoyable experience for each child.



Valerie Parrott, L.C.S.T, CPSP, has over 35 years’ experience working with children with speech and language delay.  She has spent most of this time working in early intervention in public health on the Northern Beaches. In 2015, Valerie was awarded speech pathologist of the year for the Northern Sydney Area Health District by her peers. She is also trained in the SOS approach to feeding and can work with families who are having feeding difficulties with their children and issues with transitioning to solid foods.