Dr Wilkey qualified in 1988 and has been working as a paediatrician since 1992. Having undergone training mainly in the North London sector and also at Great Ormond Street Hospital and the Royal London Hospital.
In 2002 she began practising as a Consultant Paediatrician at the North Middlesex University Hospital (NMUH) with a special interest in Haematology, Oncology and Rheumatology. In addition covering neonatology which includes preterm babies, new-borns and general paediatrics from birth to 16 years of age.
Dr Wilkey is the Lead for Share care Paediatric Haematology and Oncology with Great Ormond Street Hospital and University College hospital and the Lead the Paediatric haemoglobinpopathies. Until February 2014 she was the lead for Paediatric rheumatology. Due to a special interest in chronic haematological conditions she is also leading on transitional care path ways for chronic conditions in the paediatric department.#
Between 2006 and 2014, Dr Wilkey was the College tutor for paediatrics at the North Middlesex Hospital. Since 2014, Dr Wilkey has held the position of Regional Paediatric training programme director for the North Central and East London (NCEL) and Foundation Training Director for the North Middlesex Hospital. This involves being an educational supervisor for all training grades and supporting the College tutors in training paediatricians. She is also a Royal College of Paediatrics and Child Health Examine and has recently been appointed as a Quality Care Commission specialist adviser.
Dr Wilkey has been author and co-author of several abstracts and papers and has an interest in research. Due to her commitment to the NHS over the years she has been awarded a number of Clinical Excellence Awards.