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Compassionate and Understanding Psychologists and Counsellors in Thunder Bay

Here at Thunder Bay Psychology, our professional mental health team is dedicated to providing you with the care you deserve. We have decades of experience working with a variety of individuals across different age groups, social situations, and occupations.


Our team is comprised of experienced, understanding psychologists and counsellors who span various sub-fields associated with psychology and psychotherapy. The common thread that unites us at Thunder Bay Psychology is our passion to help people live more conscious, healthy, happier lives.


To achieve these goals, our professionals develop tailored plans to suit the specific needs of each of our clients. We are determined in helping you accomplish your psychological goals.


We believe that together, we can create healthier, more meaningful relationships and help one another lead better lives. Thunder Bay Psychology is proud to provide the following mental health professionals to assist you with any difficulties you may be experiencing.

Dr. Paul Johnson

Dr. Paul Johnston

Registered Clinical and Forensic/Correctional Psychologist

Dr. Johnston is a registered clinical and forensic/correctional psychologist in good standing with the College of Psychologists of Ontario. Beginning in 1987, Dr. Johnston has accumulated over 30 years of hospital-based experience at both McKellar General Hospital and Thunder Bay Regional Health Sciences Centre. From 1992 until 2011, Dr. Johnston served as a Part-Time Consultant with St. Joseph’s Care Group Behavioural Sciences Centre.  Dr. Johnston has extensive experience in assessing, diagnosing and treating troubled adults with psychotherapy. This includes both inpatient and outpatient treatment.


In addition to opening his own private practice in 2011 (now Thunder Bay Psychology), Dr. Johnston is a partner in Thunder Bay Mental Health Assessments with Psychiatrist Dr. J. Stewart. To find out more about this organization, click here.


For many years, Dr. Johnston has been an adjunct professor with Lakehead University, and lecturer with the University of Toronto. He was a clinical supervisor of hospital staff, a psychotherapy supervisor for psychiatric residents, and continues to supervise university psychology graduate students in office. He is also the former director of training for the Northern Ontario Psychology Internship Consortium (NORPIC).


Dr. Johnston also works with the judiciary system. His work involves psychiatric, characterological, intellectual, risk of recidivism and malingering assessment of both forensic and correctional patients.


Dr. Johnston has performed countless psychological assessments throughout his career at the hospital, for insurance companies, employers, the Behavioural Sciences Centre as well as at his own practice, Thunder Bay Psychology.

Rev. Hugh Walker

Rev. Hugh Walker

Licensed Psychotherapist, Registered Marriage and Family Therapist

Hugh Walker is a seasoned marriage and family therapist registered with the American and Ontario Associations of Marriage and Family Therapists and a member of the Ontario College of Psychotherapists. Aside from working with us here at Thunder Bay Psychology, Hugh is currently employed as a Clinical Supervisor with St. Joseph’s Care Group and previously worked as the Family Therapy Educator for the University of Winnipeg. His service provision consists of marriage and family therapy, complex grief reactions, existential therapy, anxiety and depression therapy, emotional intelligence education, and dignifying the experience of meaningful loss along life span.


With many years of experience working with individuals and families, Rev. Hugh is very well-known and respected within our community. It gives us great pleasure to be able to offer you his services at our clinic.

Dr. Missy Teatero

Dr. Missy Teatero

Registered Clinical Psychologist

Dr. Teatero is a registered clinical psychologist with the College of Psychologists of Ontario and has been in the field since 2008. She has experience in consultation and assessment, as well as individual and group psychotherapy.

Dr. Teatero graduated with her Masters and Ph.D. from Lakehead University and is currently the co-assistant director of the Northwestern Ontario Psychology Internship Program at the Mental Health Outpatient Services (MHOP) for the St. Joseph’s Care Group. 

Dr. Teatero is honoured to work with various clients and has been particularly passionate over the last few years in providing services to first responders and women who are pregnant or in the postpartum stages. She can provide Eye Movement Desensitization and Reprocessing (EMDR) therapy, Exposure and Response Prevention (EX/RP), Prolonged Exposure (PE) therapy, Cognitive Behavioural Therapy (CBT), Dialectical Behavioural Therapy (DBT), Cognitive Processing Therapy (CPT) and uses mindfulness-based therapy in her work with clients.

Dan Boudreau

Dan Boudreau

Registered Social Worker, Psychotherapist

Dan Boudreau is a licensed social worker in good standing with the Ontario College of Social Workers and Social Service Workers. He is also a member of the Ontario Association of Social Workers. Dan joined our team in 2019, but has been working full time as a Mental Health Counselor for over 25 years. For over two decades he has been working with the Thunder Bay Regional Health Sciences Centre, and is also on faculty for the Northern Ontario School of Medicine, supervising psychiatry residents for Cognitive Behavioural Therapy.


Dan is very focused on the therapeutic relationship he has with his clients, and is very passionate about working with each and every individual he sees. He has extensive training in a number of therapy models including, Cognitive Behavioural Therapy, Interpersonal Therapy, Solution-focused therapy, Acceptance and Commitment Therapy and Cognitive Processing Therapy.


He is experienced in working with people affected by obsessive-compulsive disorder (OCD), depression, anxiety, work stress, interpersonal conflict, and trauma.

Dr. Mandy Hawkins

Dr. Mandy Hawkins

Registered Psychologist

Dr. Mandy Hawkins is a registered psychologist with the College of Psychologists of Ontario. She has been working in the field since 2004. For the last eight years, Dr. Hawkins has been working primarily with adults with various types of trauma, PTSD, stress, depression, anxiety, relationship difficulties, and work-related issues. For the past four years, she has also worked in an Occupational Trauma Program, providing trauma - and return - to work-focused treatment to workers who developed a psychological injury in response to stressors and incidents at work.

Dr. Hawkins has spent the last nine years offering these services in the Lower Mainland of British Columbia. She has recently returned to her hometown of Thunder Bay and is excited to continue with this work here.

Her primary treatment modality is Eye Movement Desensitization Reprocessing (EMDR), but she can also offer Prolonged Exposure Therapy (PE), Cognitive Behaviour Therapy, Dialectical Behavioural Therapy (DBT), Exposure and Response Prevention, and mindfulness-based interventions.

Lauren Dupuis Forensic Psychologist

Lauren Dupuis

Psychotherapist and Social Worker

Lauren is grateful to be living and working on the traditional territory of Fort William First Nation, a signatory to the Robinson Superior Treaty of 1850. She was born and raised in Thunder Bay and is passionate about helping people in our northern community.


Lauren is a licensed social worker in good standing with the Ontario College of Social Workers and Social Service Workers. She is also a member of the Ontario Association of Social Workers. Lauren has completed her Honours Bachelor of Social Work and will complete the Masters of Social Work in the summer of 2021.


Lauren is well versed and trained in Cognitive Behavioural Therapy, Dialectical Behavioural Therapy and mindfulness-based therapies. Lauren has experience working within a multidisciplinary team, with a primary focus on brief counselling for depression, anxiety, grief and loss, relationship issues and burnout.

Lauren prides herself in providing care in a kind and gentle manner.

 Sharon Howk-Ventrudo

Sharon Howk-Ventrudo

Registered Psychologist

Sharon Howk-Ventrudo is a registered clinical and health psychologist who has been working in the field since 1992. She graduated with her Master of Arts degree in clinical psychology from Lakehead University and is registered, in good standing, with the College of Psychologists of Ontario. Sharon has been working in hospital-based programs providing out-patient psychotherapy in the areas of general community mental health and chronic disease management. Her service provision consists of therapy for depression, anxiety, grief, stress, burn out, interpersonal conflict, health self-management, and trauma/PTSD.

Sharon has been trained in a number of therapy models including Cognitive Behavioural Therapy, Acceptance and Commitment Therapy, Dialectical Behavioural Therapy, Solution Focused Therapy, Eye Movement Desensitization and Reprocessing (EMDR), and mindfulness based interventions.

She has had the privilege of developing trusting relationships with her clients over the years and is honoured to share in each person’s personal journey.

To have either professional help you out, please call us.

We help our clients address current challenges and long-standing issues.

Let us make your concerns our concerns. Reach out for help!


Dr. Paul Johnston

116 May Street N

Thunder Bay, ON

P7C 3P1

Toll-Free: 1‑888‑872‑8551

Tel: 807‑628‑0752

Fax: 807‑344‑2089


Monday - Friday 09:00 AM - 08:00 PM

Saturday - Sunday Closed

Some flexibility is available.

Service Area

Proudly serving North Western Ontario.


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