Practitioner Credentials and Biographies

Tamah Markle  M.Ed., R.P., OCT, OAMHP(c)

Clinic Director / Psychotherapist / Certified Trauma Informed Practitioner


​Tamah's vision of co-operative, accessible resources and family support services in this community facilitated the establishment of the Colborne Street Clinic in 2008.


Tamah is a skilled psychotherapist with a passion for working with adolescents. She has extensive training and experience working with young people in various  contexts including education, psychotherapy and counselling. Tamah's private counselling practice includes adolescents, families and individuals. Consistent with the idea that healing takes place within the context of community, Tamah has developed a unique support/mentoring program that assists clients beyond the therapeutic process.

Rebecca Brownell, M.T.S., R.P., RMFT
Psychotherapist/ Marriage and Family Therapist

Rebecca is a Registered Psychotherapist and Registered Marriage and Family Therapist and has been counselling for over 24 years.  Her practice includes working with individuals over the age of 18 as well as couples.  She specializes in the treatment of post trauma, anxiety, depression and couples counselling.  Her modalities of practice include Emotionally Focused Therapy, EMDR, Hypnosis and Neurofeedback.  Rebecca offers a respectful environment where people can feel safe to heal, learn new skills and tools and find joy, peace and balance in their lives again.

Randy Campbell, M.Div., R.P. , OAMHP(c) (AAMFT) 

Registered Psychotherapist/Marriage and Family Therapist


Randy is a mental health professional trained in psychotherapy and family systems, and the assessment and treatment of mental and emotional disorders within the context of marriage, couples and families. His practice includes, individual, marriage and family counselling. Randy draws from many different therapeutic methodologies, using client-centered and individualized approaches to therapy. His active listening skills and non-judgmental attitude allows for a safe and caring environment that puts clients at ease. Randy’s extensive training, professional, and life experiences equip him to assist individuals, couples and families in addressing the tough issues.


Valerie Clark, B.A., B.Ed., OCT 

Special Education Resource Teacher / Irlen Screener


Valerie is a Special Education Resource Teacher with over 15 years’ experience working with students who have learning disabilities and differences. Some students with learning disabilities experience perceptual difficulties identified as Irlen’s syndrome that can affect reading achievement, learning and performance. Valerie is a certified Irlen screener and is qualified to make recommendations and accommodation in the school environment.


Shauna Crawford Boone, M.Div., R.P. (Qualifying)

Registered Psychotherapist (Qualifying)/ Marriage and Family Therapist/ Play Therapist 


Shauna is a Registered Psychotherapist (Qualifying) with an M Div. Clinical Counselling. She is trained as a Marriage and Family Therapist and has further training in Play Therapy and Child Psychotherapy. Shauna is currently pursuing further training in Play Therapy, Theraplay, and working towards the Registered Marriage and Family Therapist designation. She is also a Certified Provider of Autplay Therapy, a play therapy approach for children and adolescents on the autism spectrum and other neurodevelopmental disorders.

Barbara Davidson, M.H.SC., SLP

Speech Language Pathologist, Reg. with CASLPO


Barbara offers a spectrum of services such as assessment of speech, language and communication skills for children up to age 18, and family-centred treatment planning and therapy for speech and/or language development.


Barbara has many years of experience as a Speech Language Pathologist including:

Assessment and treatment of high-risk infants as part of a Neo-Natal Follow-Up team out of Orillia Soldiers Memorial Hospital and Royal Victoria Hospital; the development of augmentative communication programs with preschool and school-aged children; assessment and treatment of children who have a language-based learning disability or a cognitive disability; and delivery of articulation therapy for children with developmental apraxia of speech or motor-speech problems. Barbara offers Leading Parent Education sessions using the Hanen Parent Programs and is a member of a developmental team that assesses children with Autism.

Heidi Flynn, BMT, MTA

Accredited Music Therapist

Owner, Music Therapy Services of Simcoe County


Heidi is a Registered Psychotherapist, a Certified Music Therapist and the owner of Music Therapy Services of Simcoe County.  She has been providing music therapy services in communities across Simcoe County since 2001.  Her team of music therapists support individual of all ages and with a variety of needs. They specialize in providing music psychotherapy and developmental services to individual with special needs, neurologic rehabilitation (stroke or brain injury), and geriatrics with Alzheimer’s and dementia.


Heidi’s life experiences of having a brother with Down Syndrome and a son with complex needs including ASD enables her to understand the incredible impact music can have on the emotional well-being of all individuals, but especially those whom find it difficult to, or cannot communicate verbally.  Heidi has a great deal of experience working with individuals with a variety of emotional, developmental, and neurological needs.


When not singing, or playing one of her many instruments, Heidi enjoys spending time with her two children and husband, and watching hockey games.

Leah Lalonde B.A. Psych, M.S.W


Leah has been working in the Human Services field for over 30 years.  In a unique approach to therapy, Leah supports those she serves in understanding thought patterns, emotional blocks and their impacts on overall health and wellbeing. Her intention is to ensure she's fully present and mindful as she supports others to walk the path of self-discovery, self-empowerment and re-establishing balance in their lives. Taking a polyvagal informed approach in her work, she assists many from all walks of life to heal from the effects of trauma.  This takes place through increasing awareness of nervous system functioning and its impact on emotional states, our relationships and day-to-day functioning.  Leah seeks to share the science behind feeling safe and connected, in a way that leads others to fall in love with life and live fully.  Leah provides service to individuals, couples and has extensive experience working with the Indigenous community. 


Jerdelle Pilger 

Psychotherapist / Family and Marriage Therapist


Jerdelle is a Registered Psychotherapist with an integrative, holistic approach to wellness.

Jerdelle understands that we all experience challenges in our lives and with a compassionate and non-judgemental approach, her hope is that you will find a safe space to work through your difficulties as you journey towards wellness. Jerdelle has worked with diverse communities: those who are experiencing physical and mental disabilities, refugees, impoverished, students, faith groups, and those in conflict with the law and their families.

Jerdelle is a member of the College of Registered Psychotherapists of Ontario and holds a Master of Divinity degree in Counselling. She is also a member in good standing with the Canadian Association for Marriage and Family Therapy and the Ontario Society of Registered Psychotherapists.

Pamela Robinson, B.Ed., OCT

Learning Support Services


Pamela is an Educational Consultant with qualifications in Special Education and Behavioural Science (ABA).  Pamela has been working with students with learning disabilities, autism, and complex needs since 2005 as a tutor, personal support coordinator, and program coordinator for Camp Winston.  Pamela offers individual or group tutoring sessions for students with learning disabilities integrating organizational skills and assistive technology into all lessons. Pamela is also a PlayLab facilitator, offering fun and educational workshops where children build confidence through success and accomplishment.

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Julie Thurston, B.Sc. ND.

Naturopathic Doctor


Julie Thurston is a registered Doctor of Naturopathic Medicine in Ontario, and is a member of both the Ontario and Canadian Association of Naturopathic Doctors. She has completed additional licencing requirements which enables her to prescribe regulated substances such as bio-identical hormones and thyroid replacement.  Julie maintains a general naturopathic practice for patients of all ages.  She has developed strong clinical experience with women`s health and preventative care for active older adults as well as digestive, emotional and learning/cognition related issues. Her careful explanation of diagnostic and treatment options allows her patients to become active participants in their healing process