Atul trained in Medicine at Cambridge University and Kings College London; did postgraduate training at Imperial London (Hammersmith Hospital) and was a consultant Haematologists at the Royal Free and University College Hospitals in London until his retirement in January 2019.

He was the Founder and Director of the Lysosomal Storage Disorders Centre at the Royal Free, which grew to be the largest centre in the UK and one of the foremost clinical academic centres for LSDs in the world. He now works in charitable, educational and research roles, including consultancy.