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Our Team

Dr. Queenie Lo, Ph.D., C.Psych.


Dr. Lo graduated with her doctorate from the School and Clinical Child Psychology program (APA and CPA accredited) at OISE/University of Toronto in 2007. During her predoctoral internship and postdoctoral fellowship at Sickkids Centre for Community Mental Health (previously known as the Hincks-Dellcrest Centre), she further received intensive theoretical and clinical training in attachment-based therapy, play therapy, and adult psychotherapy. She completed the licensing requirements of the College of Psychologists of Ontario in 2009 and granted a certificate of autonomous practice as Registered Psychologist, with declared competency to work with children, adolescents, and adults.

She worked in a variety of settings including the hospital, the school board, and community based out-patient program.  She held part-time appointments as Psychologist at St. Catharines General Hospital, as well as at Toronto Catholic District School Board. She currently continues to be Consultant Psychologist for a trauma program in Toronto. She regularly provides clinical supervision for psychology students and post-doctoral fellows.

Dr. Lo has a particular interest in personality functioning and the betterment of psychological well-being. She believes the best outcomes are achieved through working collaboratively with the patient. When working with children, working with the parents and families is often an integral part of the therapeutic process. From her nine years of graduate and post-doctoral education and training in Clinical Psychology and ten years of practice, she has recognized the undeniable uniqueness and complexity of the emotional and relational experiences for each individual, whether a very young child or an adult, which manifest as a variety of subjective satisfaction/distress and thought and behavioural patterns. This insight highlighted her belief in the necessity of ongoing assessment and comprehensive understanding of the patient’s needs, facilitated by sound theoretical knowledge, empirical evidence, and clinical skills, in optimizing outcome.

Dr. Bravina Kuni, Ph.D., C.Psych.

Psychologist (Markham Location Only)

Dr. Kuni graduated from the Clinical Developmental Psychology program at York University. She is a registered member of the College of Psychologists of Ontario. Dr. Kuni graduated with her doctorate in clinical developmental psychology in 2015. She completed the licensing requirements of the College of Psychologists of Ontario in 2017 and was granted a certificate of autonomous practice as Registered Psychologist. She has received training and experience in a variety of hospital and community-based outpatient programs (The Hospital for Sick Children, Centre for Addiction and Mental Health, Southlake Regional Health Centre, and Child Development Centre in Kingston).

She is a Clinical Psychologist who works with pre-schoolers, school-aged children, and adolescents. She provides consultation, as well as psycho-diagnostic evaluation and intervention for a range of psychological difficulties including anxiety, depression, obsessive-compulsive disorder, disruptive behaviours, social difficulties, and attention-deficit/hyperactivity disorder (ADHD). Dr. Kuni also provides psychological assessment for learning difficulties (including giftedness), intellectual disability, and other difficulties such as ADHD and autism spectrum disorder.

Dr. Kuni takes a collaborative, culturally-sensitive, and strengths-based approach to her practice to meet the unique needs of her clients. Her practice is always informed by evidence-based practice and empirical research. Dr. Kuni primarily uses cognitive-behavioural therapy, behaviour modification, play therapy, and social skills training. She also enjoys spending time with her family and traveling. In her spare time, she loves playing piano and singing.

Bryanna Graves, M. Clin. Psy.

Clinical Associate (Markham Location Only)

Bryanna completed her Master’s degree in Clinical Psychology at Windsor University, and her Bachelor’s degree at the University of Toronto.  Throughout her career she has worked with at-risk youth facing numerous challenges such as homelessness, addiction, and mental illness. She has engaged in numerous research projects on topics related to self-harm, suicidality, and cognitive functioning in youth and adults. She has presented at numerous scientific conferences and co-authored research on topics ranging from treatment effectiveness to cognitive impairment.

Bryanna is in the process of registering with the College of Psychologists of Ontario as a Psychological Associate. As part of the rigorous registration process, Bryanna has been providing psychological assessments and therapy under the supervision of a registered Psychologist. At Markham Psychologists, Bryanna conducts comprehensive empirically-based psychological assessments to help individuals gain an understanding of their presenting difficulties, inform the treatment process, and access appropriate psychological and/or educational supports. She has experience in the assessment of learning disabilities, as well as intellectual and developmental disabilities (e.g. ADHD) with children, adolescents, and adults.

Bryanna also provides psychological therapy for children, adolescents, and adults. She has experience in presenting problems related to anxiety, panic, obsessive-compulsive behaviour, depression, suicidal ideation and self-harm, as well as behavioural and emotional dysregulation. Bryanna’s approach to therapy is eclectic (combining multiple therapeutic perspectives). She primarily uses a Cognitive-Behavioural approach while integrating Family Systems and Humanistic therapies, Emotion-Focused work, Play Therapy, Mindfulness, and Acceptance-Based practices. Bryanna believes in the innate worth and potential of every person. This allows her to see each client as unique and important. She approaches assessments and therapy non-judgementally, with honesty, and integrity. She strives to maintain a balanced lifestyle herself; in her spare time, she enjoys spending time with her loved ones, being physically active, or painting.

Doris Sweeney, B.A.


Ms. Sweeney is a psychometrist who, in collaboration with a registered psychologist, conducts psychoeducational assessments, gifted assessments and evaluation of learning difficulties.

Ms. Sweeney obtained her Bachelor of Arts in Psychology from the University of Western Ontario in 1985. She has worked at Whitby Psychiatric Hospital and has maintained a position at Sunnybrook Health Science Centre since April of 1987. She has been affiliated with two research studies of youth services and several studies of geriatric memory and aging. Additionally, Ms. Sweeney has worked in private practice with several psychologists in Toronto, Brampton, Mississauga and Markham since 1988.

She volunteers at the Children’s Liturgy Program at her church (22 years), where she has been the Program Co-ordinator for the past 3 years. She avidly participates in physical fitness and is a recreational watercolour and acrylic artist.

Samantha Chan, B.Sc. (Hons), M.Sc.


Samantha is currently completing her Master’s degree in Clinical Developmental Psychology at York University and is receiving training in conducting comprehensive psychological assessment with children and youth.

Samantha obtained her Master’s degree in Developmental Psychopathology at Durham University and her Bachelor’s degree in Psychology at Queen’s University. Throughout her career, she has worked at a psychiatric hospital where she provided support to adolescents with a wide range of mental health and behavioural needs. Her research mainly focuses on emotion regulation, social relationships, and mental health among adolescents and emerging adults. She is also interested in applying research to develop evidence-based mental health intervention and prevention programs for children and youth. In her spare time, she enjoys spending time with her family, travelling, and doing yoga.

Sarah Boutros, B.Sc. (Hons)

Office Assistant

Sarah Boutros is the Office Assistant for the clinic.  She graduated with a Honours Bachelors of Science from The University of Toronto, majoring in Neuroscience and Psychology.  Sarah enjoys working with people and takes pride in making sure all is running smoothly in the clinic.  Her previous experience includes working as a Lab Coordinator at a psychology research lab.   When she is not in the office or the lab, Sarah loves to spend her time singing and seeing friends.