Mr Ballester practices as a Consultant Orthopaedic Surgeon with a special interest in knee, foot and ankle surgery. He is a member of the Medical Advisory Committee of Fairfield Independent Hospital. Mr Ballester is the Educational Supervisor for final year Liverpool medical students and is a faculty memeber of AO Synthes Courses. Directly involved in the formation of Orthopaedic Surgeons for Mersey Region. Mr Ballester is also an Intercollegiate Examiner FRCS Orth , exit exam for the speciality of Trauma and Orthopaedics.