Meet the IMPACT Team
Dr. Janet Patterson M.D., F.R.C.P. (C): I have been a fully licensed physician in the province of Ontario since 1982 when I graduated from medicine at McMaster University Medical School. I completed my residency training in Obstetrics and Gynaecology at McMaster from 1982-1987 before completing my residency in Psychiatry in 1991. This was followed by a year of fellowship training in Toronto in Child and Family Psychiatry and Systems Theory. I have been a Fellow of the Royal College of Physicians and Surgeons of Ontario since 1991 and am currently on faculty at McMaster University. I have worked in a variety of outpatient and inpatient psychiatric settings including the Mood Disorders Unit inpatient setting from 2004-2007. I have a part-time faculty appointment with the Department of Psychiatry and have been extensively involved with the education of medical students and psychiatry residents since 1991. Currently, I work on an acute inpatient psychiatric ward and part-time in a private clinical practice. I also cover the consult Liaison service and Emergency Psychiatric Department at St Joseph's on a semi-regular basis. For further details, please refer to my curriculum vitae.
Dr. Emily MacKillop, PhD, CPsych., ABPP-CN: is an experienced registered clinical psychologist and neuropsychologist. She has been board certified in clinical neuropsychology by the American Board of Professional Psychology (ABPP) since 2012. She has assumed roles as clinician, educator, clinical director, training director, researcher, and mentor during her 18+ year career working in a multitude of clinical and academic settings. She is an associate professor in the Department of Psychiatry and Behavioural Neurosciences at McMaster University and has worked as a staff psychologist at St. Joseph’s Healthcare Hamilton since 2014 where she currently directs clinical programming in Acute Mental Health and Functional Neurological Disorders. She is the Head Neuropsychologist for the Hamilton Professional Women’s Hockey League. She has been the owner and director of the Memory and Cognition Clinic, a premium psychological and neuropsychological service, since 2023, which amalgamated with Impact Health Solutions in 2026. She is an active researcher and has published several scientific papers in the areas of neuropsychology and clinical psychology. She enjoys teaching and can be hired for clinical consultation, trainings, lectures, and in-service clinical workshops. Her knowledge and expertise is unparalleled in the field of neuropsychology. Her full CV is available upon request.
Dr. James MacKillop: Dr. MacKillop trained as a clinical psychologist at Binghamton University and Brown University. At McMaster University and St. Joseph’s Healthcare Hamilton, Dr. James MacKillop holds the Peter Boris Chair in Addictions Research and a Canada Research Chair in Translational Addiction Research. In addition, Dr. MacKillop directs both the Peter Boris Centre for Addictions Research and the DeGroote Centre for Medicinal Cannabis Research. His research uses a multidisciplinary approach that integrates psychology, economics, neuroscience, and genetics to gain unique insights into addiction and medical cannabis. Using the hybrid disciplines of behavioral economics, neuroeconomics, and genoeconomics, maladaptive decision making in health behavior is a core focus of his research program. Over the past two decades, Dr. MacKillop’s lab has generated more than 500 peer-reviewed publications and other works, and his work has been recognized by the Society for Addiction Psychology, the American Psychological Association, and the Royal-Mach-Gaensslen Prize in Mental Health Research .
Dr. Nathan Moxley-Kelly: Dr. Nathaniel Moxley-Kelly completed his PhD in Clinical Psychology at the University of Vermont and his clinical residency at St. Joes Healthcare Hamilton. He is currently applying for supervised practice with the College of Psychologists and Behavior Analysts of Ontario (CPBAO). In addition to his work at Impact Health Solutions, he provides services within the Concurrent Disorders Program at St. Joseph’s Healthcare Hamilton. Dr. Moxley-Kelly’s primary therapeutic orientation is Cognitive Behavioral Therapy (CBT), and he has specialized experience in the assessment and treatment of substance use disorders, behavioural addictions, and co-occurring mental health concerns, including Posttraumatic Stress Disorder (PTSD) and Major Depressive Disorder (MDD). Dr. Moxley-Kelly believes that meaningful change begins with a strong therapeutic relationship built on trust, collaboration, and respect. He strives to create a supportive, non-judgmental environment where clients feel comfortable exploring difficult experiences and working toward their goals at a pace that feels right for them. Drawing on evidence-based approaches, he works closely with clients to develop practical skills for managing distress, navigating challenges, and building lasting change. His approach is warm, collaborative, and tailored to each individual’s unique strengths, values, and circumstances.
Olivia McGeever, MSc, MA, RP (Qual): holds a Master of Science in Global Health from McMaster University, with a focus on health economics and population management, as well as a Master of Counselling Psychology. A qualifying registered psychotherapist and experienced psychometrist, she brings a wealth of experience from managing a psychiatric outpatient clinic for five years. Olivia also served in the Peace Corps for two years, leading projects in sexual education, teacher training, and youth development. She is committed to fostering inclusive, patient-centered care and brings expertise in clinical coordination, project management, and health education. Her full curriculum vitae is available upon request.
Raquel Bean, BA: