Miss Mullan qualified from the University of Bristol and completed her basic surgical training in Bristol. She has always been interested in breast disease, and undertook research at The Royal Surrey County Hospital in sentinel lymph node biopsy, as part of the Medical Research Council ALMANAC Trial.
Her advanced surgical training in Oncoplastic Breast Surgery was undertaken in the UK and the United States. She became a Fellow of the Royal College of Surgeons in 2006.In 2008 Miss Mullan won the European Society of Surgical Oncology Travelling Scholarship and spent her time at the Nottingham Breast Institute. She was appointed as an Oncoplastic Breast Consultant at Worcestershire Royal Hospital in 2008 and works in the NHS in Worcester and Kidderminster Treatment Centre.
She is the lead Breast Surgeon for the Wyre Forest Cancer Services.Her interests include breast cancer surgery using Oncoplastic techniques, sentinel node biopsy, lipofilling of breast defects (Colman fat transfer), breast reconstruction, nipple reconstruction and nipple tattooing. She has also been trained in breast ultrasound and skin cancer work, including melanoma surgery.