Mr. Kolvekar is one of the leading cardiothoracic surgeons in London, currently working at Barts Heart Centre (St Bartholomew’s Hospital ) ,The Wellington and Harley Street Clinic and London Clinic .

He is Senior Lecturer at University College London and involved in several research projects, He has a special interest in mitral valve repairs, beating-heart surgery, cardiac arrhythmias and minimally-invasive cardiac surgery and is concerned with ischaemic pre-conditioning of the heart. He also has a thoracic practice dealing with lung cancer, pneumothorax and pleural effusion.

Another special interest is in the field of chest wall deformity interventions. He is an internationally recognised surgeon for the adult Nuss procedure and has adapted the NUSS procedure with several new techniques for better pain control and reduced risks from surgery. He also travels abroad to lecture and teach surgeons this procedure and connate minimally invasive surgery. He has several publications in international journals and has also contributed to books.