Mr Caldera studied medicine at Charing Cross and Westminster Medical School. His initial training was in London and his specialist registrar training in ENT was in the Wessex region.
Having been awarded the Certificate of Completion of Specialist Training he was appointed as a Consultant ENT Surgeon at Queen Alexandra Hospital, Portsmouth.
He manages general ENT conditions and sub-specialises in diseases of the head and neck. He is especially interested in conditions of the throat, voice and neck. As an RAF surgeon he has s special interest in ENT conditions associated with aviation.