Fondly called JB by his peers and friends, Dr.Niwagaba is medical doctor, a vintage car lover, a writer, an entrepreneur and a social critic. Over the years he has written extensively on common reproductive and sexual problems in his question-answer column, The Doctor Next Door, featured weekly in the Observer. He has also written other lifestyle articles in field of diabetes, telemedicine,socio-medical issues and also his life passion-Vintage cars. He runs Hello Doctor 0902900800, a 24/7 Medical Call Centre where you can call and talk to a doctor. He works with Doctors Plaza in Nsambya as well as the International Diabetes Federation. In his free time he is an art collector and enjoys rugby with Mulago Rams.