Our Hamilton Medical & Therapy Team

Who is part of Field Trip Health's Hamilton team?

Field Trip Health’s Hamilton location team offers innovative and compassionate care through ketamine-assisted psychotherapy, focusing on personalized and integrative treatment plans to support mental health and well-being.

Therapy Team

Audrey Barta

Registered Psychotherapist (Qualifying)

Coming Soon!

Sonya Mandus

Registered Psychotherapist (Qualifying)

Sonya is a Registered Psychotherapist (Qualifying) specializing in a client-centred, humanistic approach to therapy. She believes that every individual has the inherent capacity for growth and self-discovery, with the primary goal of facilitating positive change in the lives of her clients. By creating a safe and compassionate space, Sonya encourages clients to explore their thoughts, feelings, and experiences, empowering them to uncover their unique strengths and potential.

Throughout her career, she has emphasized the importance of personal growth and empowerment in the therapeutic process. Understanding that each client’s journey is unique, Sonya tailors her approach to honour individual experiences. By fostering an environment of trust and acceptance, she supports clients in navigating challenges and achieving personal goals. Her commitment to self-exploration and discovery allows clients to gain deeper insights into themselves, ultimately leading to lasting transformation.

In addition to her therapeutic work, Sonya incorporates psychoeducation into her practice to support and inform clients on their journey of self-growth. She provides valuable resources and tools that help individuals better understand their emotions, behaviours, and mental health. Through this holistic approach, Sonya not only facilitates healing but also equips clients with the knowledge and skills needed to thrive in their everyday lives, fostering resilience and confidence as they continue on their path of personal development.

Medical Team

Dr. Mario Nucci

Medical Director

Dr. Mario Nucci, MD, CCFP, is a dedicated and forward-thinking physician with a deep passion for mental health and medical innovation. With a focus on pioneering advancements in mental health care, Dr. Nucci has been at the forefront of ketamine treatment for mental health conditions since 2016. He has contributed significantly to the field through numerous academic lectures and clinical research, serving as an investigator in pivotal clinical trials exploring the benefits of ketamine for mental health. His efforts have been instrumental in improving accessibility to these evidence-based treatments across Canada, solidifying his role as a leading figure in the evolving landscape of mental health therapy.

Gillian Williamson

Nurse Clinic Manager

Gillian Williamson is a Registered Nurse with experience in a variety of healthcare settings, including Emergency Medicine, Post Anesthetic Care, and health and wellness lead in Acquired Brain Injury Community Rehabilitation.  Her experience is both in the public and private fields of healthcare which allows her to understand the challenges of navigating the system.  Her experience in both critical and community care has contributed greatly to her passion in mental health and addiction, and trauma-informed care with a focus on accessibility and holistic wellness.  Gillian also has received a bachelor degree in psychology as well as further education in Cognitive Behavioural Therapy, Mindfulness-Based-Stress-Reduction, and is certifying as a Holistic Nurse Coach and Consultant with the CIINDE.  
 
Gillian prides herself in practicing what she preaches and believes in the importance of lifestyle medicine through holistic health and wellness integration.  She is always striving to better herself and enjoys continuous learning with the ultimate goal of improving the well-being of her clients and community.  She is thrilled to be working in the field of psychedelic-assisted-therapy as she truly believes in using complimentary and emerging modalities in her client-centered care mentality. 

Beyond her role she enjoys spending time with her family and two dogs, staying active and enjoying the outdoors.  Gillian enjoys meditation, yoga, gratitude practice, dance, gardening, and cooking/baking and believes you can find adventure in simplicity.

Dr. Esa Leinonen

Psychiatrist

With over 15 years of dedicated experience as a Registered Nurse, Ben brings a wealth of expertise to his role as the Nurse Clinic Manager of the Ottawa clinic. His journey in the world of healthcare began in the fast-paced environment of the emergency department, where he honed his skills in critical care and patient management.

Following this, he ventured into a deeply rewarding role as a Nurse Consultant at the Workplace Safety and Insurance Board. In this capacity, he collaborated closely with a diverse group of healthcare professionals, particularly in the mental stress injuries department. Guided by his passion for mental health support, he took an active role in the care and rehabilitation of first responders who were grappling with workplace-related mental health injuries, including conditions like PTSD. It was during this transformative phase that he recognized the pressing need for innovative therapeutic approaches to address the complex challenges of mental health. Intrigued by the potential of psychedelic-assisted therapy, he embarked on a journey of exploration and research in this emerging field. His desire to bridge the gap between conventional medical practices and alternative modalities led him to pursue opportunities for involvement in this revolutionary area of healing.

Now, as a proud member of the Field Trip Health team, he is thrilled to contribute his diverse background and passion for mental health advocacy. His experiences have reinforced his belief in the power of multidisciplinary collaboration and cutting-edge therapies to create positive change. He is committed to making a meaningful impact within our community and advancing the frontiers of mental health care.

Rajveer Soos

Nurse Practitioner

Rajveer is a Primary Health Care Nurse Practitioner. She has worked in the acute care setting as well as in the community, where her focus has always been to provide compassionate client-centred care. In the community she worked to serve marginalized populations, including indigenous and homeless individuals. Rajveer believes that optimal health requires a holistic approach in which there is balance within the mind, body, and spirit. She understands the impact of mental health challenges on individuals, families, and communities, and is passionate about helping individuals heal from deep-rooted patterns and traumas, in order to create lasting healing. In 2021, Rajveer completed Therapsil’s Psilocybin Practitioner Training for End-of Life care, where she gained deeper insight into the true healing potential of psychedelics. She is passionate about the work being done at Field Trip Health and the use of psychedelics to help individuals suffering from mental illness. She is optimistic about the direction and future of mental health care and excited to be contributing to this paradigm shift in the field.

Rita Mannarino

Nurse Practitioner

Rita Mannarino is a skilled and compassionate nurse practitioner with over two decades of nursing experience. She has always had a special interest in mental health issues, mindset and chronic pain and focuses on a holistic approach that focuses on mind, body and spirit.

With advanced training and experience in a variety of settings including primary care, ICU/critical care, oncology, mental health and mindset coaching, pain and symptom management and palliative care, she is dedicated to providing comprehensive and compassionate patient-centred care that is focused on promoting mind and body wellness.

Rita combines her clinical knowledge, empathetic and caring approach, and evidence-based practices to develop personalised treatment plans that empower her patients to achieve optimal physical and mental health to lead more fulfilling lives.

Rita completed her Primary Health Care Nurse Practitioner and her Master of Science in Nursing degree at Laurentian University. Prior to this she completed her Nursing Degree from Athabasca University after previously completing her nursing diploma from Sault College of Applied Arts and Technology. Rita has completed many certificate and advance training
programs over the last two decades from various educational institutions in her constant pursuit to expand her knowledge and experience.

Outside of work, Rita enjoys spending time at their cottage on Lake Superior with her husband, two dogs and their two grown children and their partners. Rita enjoys hiking, gardening, snowshoeing, going on adventures with her family and just being in nature.

Kelsey York

Nurse Practitioner

Coming Soon!

Joy Kolic

Nurse Practitioner

Joy, a seasoned Nurse Practitioner with over 15 years of expertise in healthcare and dedicated her career to Mental Health and Geriatrics. She earned her Masters in Nursing/Nurse Practitioner degree in 2017 and has since spent 6 years excelling in the Mental Health field. Joy is certified in Mental Health and Addictions from the University of Toronto.

Beyond her role as a Nurse Practitioner, she is a certified yoga teacher with a deep passion for yoga, meditation, and mindful movement, recognizing their positive impact on wellness and healing. Embracing a holistic approach to patient care, Joy is eager to assist you in achieving your wellness goals.

Have questions?

Call us at (613) 912-5333  or email us at [email protected] 

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