Dr Chaminda Lewis is a respiratory and sleep physician with a particular interest in invasive and non-invasive ventilation (NIV) in complex patients,  respiratory and sleep problems in patients with spinal cord injuries and neuromuscular disease, respiratory and sleep neurophysiology.

His other interests include airway diseases, interstitial lung disease, respiratory infections including tuberculosis, obstructive sleep apnoea and pulmonary rehabilitation.

He graduated in Sri Lanka and did his internship in the professorial units reserved for the top graduates in the country. Thereafter, he did his Basic Physician training at Concord hospital and was offered advanced training positions in Concord and Prince of Wales hospitals. He is currently undertaking a PhD at the Neuroscience Research Australia institute (NeuRA) and works as a Staff Specialist at The Prince of Wales Public Hospital in Randwick. He has private practices in the Sydney CBD (Sydney Sleep Center) and in Bella Vista.