Middlemore Hospital is the largest hospital operated by CMDHB serving aroud half a million people. The hospital offers secondary-level (hospital and specialist) care, a selected range of community and domiciliary services, and also provides niche specialist tertiary services for regional and national consumers. Middlemore hospital is well known internationally for their work in orthopaedics and spinal injury rehabilitation, as well as being the site of the National Burns Centre. They also provide other specialist services such as neonatal intensive care, renal dialysis, plastics, reconstructive and maxillofacial surgery together with general surgery, medicine, acute care, paediatric, emergency care, and mental health.

Middlemore Hospital is one of the largest tertiary teaching hospitals in New Zealand. Annually, the hospital admits more than 91,000 in-patients, and handle in excess of 354,000 day-patients and outpatient attendances. There are around 800 Beds

At House Officer level Auckland Doctors can rotate throughout the Region. Middlemore Hospital offers run in Emergency, Medicine (General and Specialties), GP External Rotation, ICU, Psychiatry, Obstetrics and Gynaecology, Paediatrics, and Surgery (General and Specilaties).

At Registrar level Auckland Doctors can rotate throughout the Region. Middlemore Hospital offers runs in Anaesthesia, Emergency, Medicine (General and Specilaties), GP External Rotation, ICU, Psychiatry, Obstetrics and Gynaecology, Paediatrics, Pathology, Public Health, and Surgery (General and Specilaties).