Who We Are

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Dr. Carmen Weiss, Ph.D., C. Psych.  


Dr. Weiss is a clinical and health psychologist registered with the College of Psychologists of Ontario.  After receiving her Ph.D. from York University, she was a staff psychologist at St. Joseph’s Healthcare Hamilton, in the Bariatric Surgery Department and the Respiratory Rehabilitation Unit, before deciding to focus on her private practice full-time in the summer of 2013.  She has held past psychological positions at the Centre for Addiction and Mental Health in Toronto, in the CBT for Depression Unit and the Anxiety Disorders Clinic; at St. Joseph’s Healthcare Hamilton, in the Mood Disorders Unit and the Anxiety Treatment and Research Centre; and at the Eating Disorders Unit (both in-patient and out-patient) at the Toronto General Hospital.  Dr. Weiss has published numerous papers in academic journals and has been involved in government-funded research grants.

Dr. Weiss has a strong interest in Reproductive Health, particularly in terms of working with people struggling with infertility, prenatal concerns, anxiety over labour and delivery, and postpartum anxiety and depression.


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Dr. Christine Cabrera, Ph.D., C. Psych.  

Dr. Cabrera is a clinical psychologist registered with the College of Psychologists of Ontario and completed her Ph.D. at the University of Ottawa in Clinical Psychology. Her research focused on stigma experienced by people living with HIV or Hepatitis C. She has a Masters degree in Clinical Psychology from the University of Western Ontario and an Honours B.Sc. in Psychology and Kinesiology from York University. Dr. Cabrera has clinical training and experience working with a wide range of concerns including anxiety disorders, mood disorders, eating disorders, interpersonal difficulties, adjustment to chronic illness, and chronic pain. She completed her internship at London Health Sciences Centre with a specialization in rehabilitation. Other previous experiences include positions at The Anxiety Program at The Royal Ottawa Hospital and The Eating Disorders Program at The Ottawa Hospital.

Dr. Cabrera is also fluent in Spanish and can offer psychological assessment and treatment in this language.


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Dr. Sarita Peltomaa, Ed.D., C.Psych.

Dr. Peltomaa is a clinical psychologist registered with the College of Psychologists of Ontario. She received her doctorate in Applied Psychology from the Ontario Institute for Studies in Education, University of Toronto in 1994 and graduated from the Advanced Training Program in Psychoanalytic Psychotherapy of the Toronto Psychoanalytic Society and Institute in 2005. Dr. Peltomaa interned and trained at St. Michael’s Hospital in Toronto, Mental Health Outpatient Clinic; at Toronto Western Hospital, Department of Psychiatry Women’s Clinic; at Toronto East General Hospital, Crisis Unit; at East End Health Services; and at Surrey Place Centre, Children and Youth Division. After completing a post-doctoral fellowship at Women’s College Hospital’s Mental Health Outpatient Clinic, she was on staff for ten years at the Health and Wellness Centre, University of Toronto before moving into private practice.

Dr. Peltomaa uses a contemporary psychodynamic perspective to help alleviate distress and foster growth. This approach actively explores thoughts and feelings in the here-and-now as well as influences of the past in order to understand and address difficulties. Dr. Peltomaa also integrates meditation techniques to facilitate this process. She has a particular interest in working with relational difficulties (with partners, family, friends, co-workers), personality disorders, loneliness, stress, life transitions, anxiety, depression, assertiveness, body satisfaction, and building self-esteem. She offers brief and longer-term psychotherapy for individuals 18 years of age and older.


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Dr. Jonathan Weiss, Ph.D., C.Psych.

Dr. Weiss is a clinical psychologist registered with the College of Psychologists of Ontario.  He is also an Associate Professor in the Department of Psychology at York University.  He holds the Chair in Autism Spectrum Disorders Treatment and Care Research through the Canadian Institutes of Health Research (CIHR), as well as additional operating funds from CIHR and the Social Sciences and Humanities Research Council (SSHRC).  He completed a pre-doctoral internship at Surrey Place Centre (Toronto) and a post-doctoral fellowship in the Dual Diagnosis Program at the Centre for Addiction and Mental Health, and was a fellow in the Department of Psychiatry at the University of Toronto.  His research focuses on the prevention and treatment of mental health problems in people with autism spectrum disorders and/or intellectual disabilities across the lifespan.

Dr. Weiss provides comprehensive psychological assessments for a variety of issues including learning disabilities, giftedness, and autism spectrum disorders.  He is licensed to work with kids, adolescents, and adults, as well as families.


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Mario Spiler, MSW, RSW, CHt., MNLP

Mario Spiler is a Social Worker registered with the Ontario College of Social Workers and Social Service Workers. He has extensive experience working in hospitals, in-patient and out-patient psychiatric services, rehabilitation, and chronic pain. Mario Spiler received clinical training in Psychodynamic Psychotherapy, Cognitive Behavioural Therapy, Structural Family Therapy, Short-Term Solution Focused Therapy, and Clinical Hypnosis. He has been practicing psychotherapy for 30 years with individuals, couples, families and groups. His main psychotherapeutic focus is on structured, evidence-based treatment using Dialectical Behavior Therapy (DBT) and Transference-Focused Psychotherapy (TFP) for severe personality disorders, in particular borderline personality disorders.

Addressing presenting issues such psychiatric diagnoses, recent hospital discharges, suicidal ideation, trauma, abuse, addictions, and high conflict relationships, his clinical goal is to engage the individual to develop more adaptive skills necessary to manage their 1) intense and rapidly shifting emotions (emotional dysregulation), 2) impulsive, self-destructive or self-defeating behaviours, 3) conflicted and stormy relationships, and 4) difficulties with internal sense of identity. Mario Spiler also works extensively with couples on changing relationship patterns that 1) reduce negative responses, 2) increase self-regulation, and 3) improve communication effectiveness.

Mario Spiler is fluently bilingual and able to provide psychotherapy services in both English and Spanish.


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Dr. Leah Keating, Ph.D., C.Psych. (Supervised Practice)

Dr. Keating is working under the supervision of Dr. Weiss during her year of supervised practice with the College of Psychologists of Ontario. Dr. Keating completed her PhD in Clinical Psychology at York University. She earned a Master’s degree in Psychology from Carleton University, and a Bachelor of Arts (Honours) with a Specialization in Psychology from the University of Ottawa. She has held positions at the Trauma Therapy Program at Women’s College Hospital; the Traumatic Stress Service at the London Health Sciences Centre; the Concurrent Disorders Program, Inpatient Assessment Program, and Inpatient Treatment and Rehabilitation Program at Parkwood Institute; the Eating Disorders Program at St. Joseph’s Healthcare Hamilton; the York University Psychology Clinic; and the Centre for Interpersonal Relationships. She has experience in providing psychological services to clients in areas related to trauma and abuse, eating disorders, personality disorders, anxiety, depression, emotion regulation, relationship difficulties, sexuality, sexual concerns, and substance abuse. Her approach is collaborative and relational, and integrates her training in humanistic therapy, acceptance and commitment therapy, dialectical behaviour therapy, interpersonal reconstructive therapy, psychodynamic therapy, and cognitive behavioural therapy. Her practice is LGBTQ+ positive. Dr. Keating’s research on LGBTQ+ individuals’ experiences of trauma, on women’s recovery from abuse, and on the development and treatment of eating disorder symptoms has been presented at conferences and published in academic journals, and received government-funded awards.


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Kimberley Lynn, M. A. 

Kimberley Lynn received her master’s degree in Clinical Psychology from York University. She is working under the supervision of Dr. Weiss as she completes the final stages of her Ph.D. Kimberley has extensive experience providing evidence-based psychotherapy and assessment services to adults for a wide range of presenting issues, including anxiety, depression, eating disorders, relationship difficulties, emotion regulation problems, and boredom. She uses an integrative therapeutic approach that includes the use of Cognitive Behavioural Therapy, Emotion-Focused Therapy, Acceptance and Commitment Therapy, and Mindfulness.  She has held psychological positions at North York General Hospital in the Adult Mental Health Unit; Toronto General Hospital in the Eating Disorders Unit; and the York University Psychology Clinic. Kimberley is also an active researcher. She has published several papers in academic journals; given national presentations; and been involved in government-funded research grants.

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Tricia Spiler 

Intake Coordinator

Tricia is our lovely and personable intake coordinator who is there to help arrange appointments with you and one of our therapists.   Many clients have commented that they really appreciated the care and concern she provided when they spoke to her and it made embarking on the process of seeking treatment a little easier.