Mr Rimington gained his accreditation as a Consultant Obstetrician & Gynaecologist in 1997 then quickly entered full time private practice as an infertility specialist. He started working in the field of assisted conception in 1992, gaining an MD in 1997.
In 2004 Mr Rimington joined with Mark Wilcox to form the South East Fertility Clinic and set up a new assisted conception service in Tunbridge Wells. This clinic became part of the CARE Fertility Group in 2014 and he became the Medical Director of CARE Fertility Tunbridge Wells
His area of special interest is the management of women with polycystic ovarian disease, on which subject he has published widely.