Clinical Diagnostic Psychology

This service stream provides comprehensive psychological assessment and diagnostic clarification for adults and adolescents. Services include structured clinical interviews, standardized psychometric testing, cognitive and memory evaluation, personality assessment, and differential diagnosis. Assessments are designed to clarify diagnostic presentation, inform treatment planning, support medi... Read More

This service stream provides comprehensive psychological assessment and diagnostic clarification for adults and adolescents. Services include structured clinical interviews, standardized psychometric testing, cognitive and memory evaluation, personality assessment, and differential diagnosis.

Assessments are designed to clarify diagnostic presentation, inform treatment planning, support medical or occupational documentation, and provide precision-level formulation.

This is not psychotherapy. These services focus exclusively on diagnostic clarity and clinical formulation.


Clinical + Counseling Psychology - Autonomous Practice

Clinical and Counseling Psychology at Atrium Psychology provides comprehensive psychological services grounded in evidence based assessment, diagnostic formulation and individualized treatment planning. As a Registered Clinical Psychologist, Dr. Zafire is authorized to conduct psychological assessments, provide diagnoses within her scope of practice, and develop individualized, evidence-inf... Read More

Clinical and Counseling Psychology at Atrium Psychology provides comprehensive psychological services grounded in evidence based assessment, diagnostic formulation and individualized treatment planning.

As a Registered Clinical Psychologist, Dr. Zafire is authorized to conduct psychological assessments, provide diagnoses within her scope of practice, and develop individualized, evidence-informed treatment plans tailored to each client's clinical presentation.

Her work integrates rigorous clinical training with a formulation driven approach that honours both empirical evidence and complexity of the human experience.

In addition to direct clinical care, Dr Fierro provides clinical supervision and oversight within Atrium Psychology, ensuring that psychological services across the clinic adhere to professional standards, ethical practice, and regulatory requirements set by the College of Psychologists and Behaviour Analysts of Ontario (CPBAO).


Psychology Supervised Practice (Doctoral Level)

This service is offered by doctoral-level clinicians who hold a doctorate in psychology and are completing the registration process in Ontario under the supervision of a psychologist registered with the College of Psychologists and Behaviour Analysts of Ontario (CPBAO). At Atrium Psychology, supervised practice is intentional and closely held. Care is guided by careful formulation, evidence-... Read More

This service is offered by doctoral-level clinicians who hold a doctorate in psychology and are completing the registration process in Ontario under the supervision of a psychologist registered with the College of Psychologists and Behaviour Analysts of Ontario (CPBAO).

At Atrium Psychology, supervised practice is intentional and closely held. Care is guided by careful formulation, evidence-based methods, and ongoing clinical supervision, ensuring that clients receive thoughtful, accountable, and high-quality psychological services throughout their work.

While services are provided under supervision and do not represent independent psychological practice, clients are supported within a fully integrated clinical team where oversight, depth, and continuity of care are central.


Registered Nurse - Provided Psychotherapy

Focus Area: Physical and emotional wellness, Life Balance, Mindset Resilience, Self-Confidence, Boundaries, and Daily routines. Hanna walks the talk and with her own bustling life and multiple responsibilities Hanna shows you how to strengthen psychological resilience! Approach: Hanna supports clients in building sustainable habits, regulating stress, and reconnecting with their personal... Read More

Focus Area:
Physical and emotional wellness, Life Balance, Mindset Resilience, Self-Confidence, Boundaries, and Daily routines. Hanna walks the talk and with her own bustling life and multiple responsibilities Hanna shows you how to strengthen psychological resilience!

Approach:
Hanna supports clients in building sustainable habits, regulating stress, and reconnecting with their personal strengths and goals. Former military trained RN and International Medical Graduate (IMG, Poland) Hanna brings resilience, discipline and a zest for fun to her clients experience of activating the mindset to sustain the journey!

Services are provided by a Registered Nurse under the clinical supervision of Dr. Zafire Fierro, C. Psych., in accordance with CPBAO standards.


Masters Psychology Associate (Q) - Under Supervision

Psychological Services (Under Supervision from Dr. Fierro) Our psychological associate provides compassionate, evidence-based therapy for individuals navigating anxiety, trauma, relational dynamics, and life transitions. Their approach combines clinical training with a deep respect for each client’s personal journey and emotional landscape. All services are provided under the direct supervi... Read More

Psychological Services (Under Supervision from Dr. Fierro)
Our psychological associate provides compassionate, evidence-based therapy for individuals navigating anxiety, trauma, relational dynamics, and life transitions. Their approach combines clinical training with a deep respect for each client’s personal journey and emotional landscape.

All services are provided under the direct supervision of Dr. Z, a registered clinical + counseling psychologist with the College of Psychologists + Behavioural Analysts of Ontario (CPBAO). This ensures that treatment planning, interventions, and psychological care meet the highest professional and ethical standards.

**Please note:** This is a supervised psychological service, all clients are those of Dr. Z. Fierro with treatment assistance of the M. Psy Associate.

Hennadi is a doctoral-level clinician who works thoughtfully with adults seeking depth, clarity, and meaningful change. His approach is grounded in careful psychological formulation, evidence-based practice, and a steady, reflective therapeutic presence.

He practices under clinical supervision within Atrium Psychology, where care is held with rigor, accountability, and respect for the full human experience.

Languages: Ukrainian, Russian, English

Hennadi is a doctoral-level clinician who works thoughtfully with adults seeking depth, clarity, ... Read More

MPsy., Masters in Psychology (Supervised Practice)

Focus: Anxiety • Depression • Trauma Recovery • Parenting Support • Emotional Regulation • Neurodiverse & Neurotypical Young Adults and Adults

Approach: With 18 years of experience supporting the neurodivergent community, Stephanie offers a warm, compassionate, and collaborative space for clients to explore challenges and build skills. She supports individuals of all ages in managing anxiety, depression, and the impacts of trauma through an integrative, whole-person approach informed by DBT, CBT, ACT, and Schema Therapy. Her work is trauma-informed and family-inclusive, emphasizing strategies to foster emotional well-being and resilience.

✨ “For many, change begins with feeling safe, seen, and supported.”

MPsy., Masters in Psychology (Supervised Practice) Focus: Anxiety • Depression • Trauma Recovery... Read More

Hanna brings a unique blend of medical knowledge, fitness experience, and mental-health training to help clients strengthen their emotional well-being and create meaningful change in their lives. As a Registered Nurse, she supports clients in developing healthier patterns, building resilience, and reconnecting with the confidence and clarity needed to move forward.

Her approach is warm, practical, and action-oriented. Hanna works collaboratively to explore the habits, thoughts, and stressors that shape daily functioning, while helping clients build effective routines, boundaries, and mindset tools that enhance both emotional and physical wellness.

Sessions with Hanna are ideal for individuals who are motivated to grow, ready to challenge old patterns, and seeking structured support to improve balance, self-regulation, and overall quality of life.

Languages: Polish, English

Regulatory Note: Hanna provides nursing psychotherapy regulated by the College of Nurses of Ontario. These services are not psychological services and are not provided under the supervision of a psychologist.

Hanna brings a unique blend of medical knowledge, fitness experience, and mental-health training ... Read More

Clients often arrive carrying more than they’ve ever spoken aloud. In our work together, there is steady, safe space to begin setting those pieces down. We move at the pace your nervous system allows, with care and clarity guiding each step.

With over 28 years of experience as a psychologist, I draw on a broad range of evidence-based approaches, including Cognitive Behavioural Therapy (CBT), Dialectical Behaviour Therapy (DBT), Acceptance and Commitment Therapy (ACT), Cognitive Processing Therapy (CPT), and Schema Therapy. Treatment plans are co-created and may also integrate trauma-informed strategies such as somatic awareness and working with different parts of self—always grounded in recognized psychological standards of care. The intention is not to label or pathologize, but to listen closely so that authentic strengths and truths can emerge.

Please note: Discovery calls are no longer offered. New clients are welcome to book directly through the online system.

In Ontario, I am registered as a Clinical and Counselling Psychologist authorized to work with the adult + couples population and practice within those declared scopes.

Clients often arrive carrying more than they’ve ever spoken aloud. In our work together, there is... Read More

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