Medical team
Our medical team brings together experience across sleep, respiratory health, weight management, addiction medicine, mental health, and natural therapies.
Specialist Sleep Physician
Dr Dev Banerjee is a Sleep Physician with over 20 years of experience. Prior roles include Sleep Physician with Service Lead in Birmingham UK, St Vincent’s Hospital Sydney, and the Woolcock Institute, University of Sydney. Dr Banerjee has been an Authorised Prescriber for alternative medicine since August 2020 (NIIM approved).
Doctor and Respiratory Specialist
Dr Karanvir Singh is an experienced respiratory specialist with expertise in lung cancer, interstitial lung disease, airways disease, bronchial infections, and obstructive sleep apnoea. Dedicated to advancing patient care, he combines clinical excellence with a compassionate approach to treatment. Having earned his MRCP in the UK and FRACP in Australia, Dr Singh continues to contribute to both public and private healthcare. He provides diagnostic and therapeutic bronchoscopy and EBUS services at Sydney Adventist Hospital, delivering high-quality, patient-centred respiratory care.
Doctor
Dr Mokpel Greis is an overseas-trained doctor with over 20 years’ experience in Addiction Medicine, prescribing treatments such as Methadone and Buprenorphine. He has also worked in rehabilitation, musculoskeletal medicine, and as a GP at Aboriginal Medical Services. Passionate about natural therapies, he completed training in 2022 and now focuses on chronic pain, anxiety, and insomnia. He enjoys playing tennis in his spare time.
Doctor
MBBS, MTrauma, PhD, DPM, FFPM. Sam is a Pharmaceutical Physician and Fellow of the Faculty of Pharmaceutical Medicine, Royal College of Physicians (UK). As a Principal Investigator, he has experience in more than 200 clinical trials, leading over 60 and specialising in First in Human and Early Phase Studies. He was awarded the Peter Ryan Prize for surgical research in 2019 and co-holds a patent on novel cell harvesting technology. He has also been an Authorised Prescriber for over two years, with a keen interest in treating chronic conditions using alternative therapy.
Doctor
Dr Dennis graduated from the University of New England in 2022. He currently works as a resident medical officer in Tamworth, gaining experience across emergency, internal medicine, and psychiatry. He is training to be a GP with special interests in chronic pain, addiction medicine, and natural medicines. He is committed to personalised care, ensuring each patient receives a tailored treatment plan that prioritises symptom relief and overall wellbeing.
Nursing team
Our nursing team combines extensive clinical experience with compassionate, person-centred support.
Nurse Practitioner
Nomusa is a Zimbabwean-born Nurse Practitioner and Credentialed Mental Health Nurse specialising in Alcohol and Other Drugs and Mental Health, alongside extensive experience in primary care and forensic nursing. Since completing her nursing degree in New Zealand in 2007, she has worked across rural and community health settings in Victoria and holds postgraduate qualifications in public health, mental health nursing, and a Master of Nursing. Nomusa takes a compassionate, trauma-informed approach to care, with a focus on Motivational Interviewing and Acceptance Commitment Therapy.
Nurse Practitioner
Marie De Grazia is a Nurse Practitioner with over 40 years of experience in mental health, specialising in addiction, complex mental health challenges, and co-occurring conditions for the past two decades. Her warm, person-centred approach is grounded in empathy and evidence-based care, with a focus on building therapeutic relationships that support recovery and resilience. Marie holds advanced qualifications in addiction and mental health and became a Nurse Practitioner in 2021. Passionate about lifelong learning, she mentors student nurses and early-career clinicians.
Nurse Practitioner
Michelle is a Nurse Practitioner and Credentialed Mental Health Nurse with over 45 years of nursing experience, including more than a decade as a Nurse Practitioner. Originally from Scotland and now based in Melbourne, she specialises in Alcohol and Other Drugs, Mental Health, Hepatitis, and Sexual Health, with a background in emergency, forensic, and primary care. Michelle combines physical, psychological, and psychosocial care to support patients’ recovery and personal goals. A passionate mentor and educator, she has lectured at La Trobe University.
Mental Health Nurse Practitioner
Cenyi Ai is an endorsed Mental Health Nurse Practitioner, university educator, and clinician with extensive experience in psychiatry and addiction medicine. She holds a Master of Advanced Nursing Practice (Nurse Practitioner) from the University of Melbourne, with postgraduate qualifications in Mental Health, Addiction Medicine and Cognitive Behavioural Therapy. Cenyi has extensive experience assessing and managing complex mental health and substance use conditions, including medication management and multidisciplinary care.
Clinical Nurse
Deb is a Registered Clinical Nurse Consultant with a background in cardiothoracic, transplant, and community nursing, now focused on natural medicine. She is a passionate advocate for patients, colleagues, and the wider community, holding roles with several professional networks. Deb runs a support network for nurses with over 10,000 members, leads educational seminars recognised for professional development, and actively lobbies for improved legislation, nurse education, and access to natural medicine across Australia.
Allied health
Our allied health clinicians provide evidence-based psychological and nutrition support aligned with each patient’s goals.
Psychologist — BSc (Hons), MPsych (Sport & Exercise), MAPS, CoSep
Abraham is a psychologist focused on bringing out the best in people — at work, with their family, in sport, and in everyday life. He is a member of the Australian Psychological Society (MAPS) and the APS College of Sport and Exercise Psychologists (CoSep), and brings extensive experience as a principal psychologist working across performance, wellbeing and clinical settings.
