Dr Casey graduated from Barts and The Royal London Medical School in 2004. She subsequently trained at Broomfield Hospital and completed her GP training in 2008. She was a GP partner at St Lawrence Medical Practice in Braintree until 2015.

Dr Casey has a Diploma in Child Health and takes a special interest in paediatric care. She believes in treating each patient as an individual and giving each patient the time needed to address their health issues fully.

She is married with three children, including identical twins. In her spare time enjoys running and has completed three marathons.