Dr Komen is a clinical Radiation Oncologist. He is a fellow of College of Medicine South Africa and holds a Master of Medicine in Radiation Oncology from the University of the Witwatersrand, Johannesburg, South Africa.

He has over 10 years' experience managing the treatment of cancer patients with five of those years as a specialist oncologist.

His practice mainly deals with management of all solid tumours. His research interests focus on areas of image guided radiation therapy,  cancer biology,  prostate brachytherapy and late side effects of treatment in childhood cancer. 

Dr. Komen is an active member of Kenya Society of Haematology and Oncology (KESHO).