Dr Singh has been practising medicine since 2003 and is a Fellow of the Royal Australasian College of General Practitioners. He is passionate about providing holistic medical care to rural communities and worked at Violet Town since 2014, followed by Murchison since 2018. His interests include heart diseases, diabetes, hypertension, thyroid disorders, chronic medical conditions and preventive health. He has been particularly known for providing comprehensive care to the elderly and children. He was involved in research in hypertension with University of Queensland and participated in public health initiatives and WHO immunisation programmes.