Our Team
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Dr. Ling Zeng graduated from McMaster Medical School and completed her psychiatry residency at the University of Toronto. She is currently a staff psychiatrist in Consultation‑Liaison at Sunnybrook Health Sciences Centre, where she cares for patients whose needs bridge mental and physical health. In addition to her clinical work, she holds a lecturer appointment at the University of Toronto. She supervises psychiatry residents and medical trainees, fostering their growth and development in both the science and art of patient care.
Trained extensively in individual and group psychotherapy, Dr. Zeng integrates Cognitive Behavioural Therapy (CBT), Dialectical Behavioural Therapy (DBT), Acceptance and Commitment Therapy (ACT), and group dynamic principles into her clinical work. She is drawn to the transformative power of psychotherapy and is dedicated to fostering a therapeutic alliance that turns self‑understanding into meaningful, lasting growth.
Co-Founder, MD, FRCPC (Psychiatry)
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Dr. Armin Rahmani is a psychiatrist and sleep medicine physician with a strong commitment to advancing sleep health and mental wellness. He completed his medical degree and psychiatry residency at the University of Toronto, followed by a fellowship in Sleep Medicine at the University of British Columbia. Dr. Rahmani is a staff psychiatrist and sleep physician at Markham Stouffville Hospital and a Lecturer at Queen’s University. He also holds a Master’s degree in Health Innovation and Management from the University of Toronto.
In addition to his clinical and academic work, Dr. Rahmani serves as a Member-at-Large at the Canadian Sleep Society, where he is actively involved in advocacy initiatives to promote sleep health and awareness. His clinical practice focuses on evidence-based care for insomnia and sleep disorders, with a particular passion for supporting individuals in improving their sleep and overall quality of life.
Co-Founder, MD, FRCPC (Psychiatry), DRCPSC (Sleep Medicine)
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Judith Mendoza is an occupational therapist with advanced training in Cognitive Behavioural Therapy (CBT) and a passion for helping adults improve their sleep and mental health. She specializes in Cognitive Behavioural Therapy for Insomnia (CBT-I) and supports clients navigating anxiety, depression, stress, and burnout.
Judith has developed and led outpatient hospital-based CBT-I group programs while providing individualized treatment for clients with co-occurring mental health conditions. Her practice also draws on Acceptance and Commitment Therapy (ACT), mindfulness-based stress reduction, and motivational interviewing.
Judith has lectured at the University of Toronto on sleep interventions and presented at national and international conferences on recovery-oriented mental health care. She takes a client-centered, neurodiverse-affirming, anti-oppressive, nonjudgmental, and solution-focused approach, helping clients build skills to live well and sleep better.
Therapist, OT Reg. (Ont.)
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Laura Friberg is a psychotherapist with a multidisciplinary background in neuroscience, education, and clinical practice, specializing in Cognitive Behavioral Therapy for Insomnia (CBT-I). She holds a Master of Arts in Counselling Psychology from Yorkville University, an M.Sc. and B.Sc. (Honours) in Neuroscience from Carleton University, and a B.Ed. with a concentration in Global Education from Queen’s University. Her academic training provides a strong scientific foundation for her work with individuals experiencing complex sleep and mental health challenges.
Laura has worked extensively in the EEG field, supporting clients with PTSD, anxiety, depression, trauma, emotional dysregulation, and insomnia. Her clinical approach integrates neuroscience-informed perspectives with evidence-based therapeutic methods to help patients understand the biological and psychological dimensions of their symptoms.
Laura brings genuine enthusiasm for data, patterns, and evidence into her sessions. She uses this curiosity, paired with a deeply compassionate style, to help patients make sense of their experiences and develop practical, research-informed strategies for meaningful change.
Registered Psychotherapist, RP
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Aaron is a Registered Psychotherapist and Registered Sleep Technologist with over 20 years of experience in the industry. He studied Psychology at Trent University and graduated with an Honours Bachelor of Science degree. Aaron then spent two years in the Graduate Program in Experimental Psychology at the University of Southern Mississippi, where he specialized in the relationship of Sleep to Learning and Memory. He developed his insomnia program in 2011 and specializes in helping people who suffer from behavioural sleep issues. Aaron also attended Oxford University in 2023 to participate in their CBT-I masterclass program.
His approach to insomnia utilizes techniques found in cognitive-behavioural therapy for insomnia (cbt-i). Aaron also has experience with the wide range of sleep disorders, and is often asked to speak at public events offering his insight into the world of sleep. He is a very good listener and puts his clients at ease when discussing Sleep issues.
Registered Psychotherapist, RP
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Dr. Sabrina Agnihotri is a psychiatrist at St. Joseph’s Health Centre and Assistant Professor in the Department of Psychiatry at the University of Toronto. She specializes in consultation-liaison psychiatry, psychosocial oncology, palliative care psychiatry, and neuromodulation (rTMS), with a focus on supporting individuals navigating the emotional and psychological impact of complex medical conditions and treatment.
Before completing medical school and psychiatry training, Dr. Agnihotri earned a PhD in Neuroscience from the University of Toronto, where her research focused on the intersection of neurobiology and behaviour. She has authored and co-authored numerous peer-reviewed research articles examining the relationship between brain health, behaviour, and mental health. Her work has been recognized through several awards, including the Ennis Scholarship in Breast Cancer Medicine, the Clinical TMS Society Pulses Scholarship, and multiple University of Toronto MD Program Teaching Awards for excellence in medical education.
Dr. Agnihotri frequently supports patients experiencing treatment-related mental health symptoms, including anxiety, depression, adjustment difficulties, and insomnia. She is committed to providing thoughtful, evidence-based, and compassionate care, and works closely with patients and their medical teams to support emotional well-being and quality of life throughout treatment and recovery.
MD, FRCPC (Psychiatry)
Our Story
Luna Health began when Dr. Zeng and Dr. Rahmani met at Sunnybrook Hospital. In practice, they saw how difficult it was for people to access psychotherapy that was both evidence-based and tailored to their needs. Too often, people were handed lists of private psychotherapy options with little guidance on who might be the right fit.
Both founders share a deep commitment to the role of sleep in mental health. Through her work in medical psychiatry, Dr. Zeng has seen how disrupted sleep can both reflect and intensify psychological and physical distress. Dr. Rahmani, through his fellowship and advanced training in sleep medicine, has focused his practice on understanding and treating sleep disorders. Their shared vision is why Luna Health places sleep at the centre of its work, recognizing that improving sleep is often a key step toward supporting mental health, resilience, and overall well-being.
At Luna, we believe healing starts with the right connection. We foster a trusted network of highly trained and experienced therapists, where people feel secure seeking care and providers feel confident referring. Together, we’re building a community where healing feels grounded, accessible, and lasting.