Background: People with intellectual disability (ID) leaving institutions pass through a transition stage that makes them vulnerable to inadequate health care. They enter into community care under general practitioners (GPs) who are often untrained and inexperienced in their needs. Specifically designed health reviews may be of assistance to both them and their new GPs as they go through that phase. Methods: This research aimed to investigate the effectiveness of a specially designed health review, the comprehensive health assessment program (CHAP) health review, in a group of adults as they transitioned out of the care of the last institution for people with ID in Tasmania. There were 25 residents reviewed by their GPs. Results: The CHAP reviews picked up a number of health conditions and stimulated health promotion activities. Some of the findings were: a high number of abnormal Body Mass Indexes (1923), immunizations given (1323), vision impairment reported (223), mental health issues recorded (423) and skin abnormalities described (1723). There were 22 referrals made to other health professionals (Australian Hearing Service 4, dentists 3, optometrists 3, psychiatrists 2, neurologists 2, ophthalmologist 1, urologist 1, ultrasound 1, mammogram 1, family planning 1, physiotherapist 1, continence nurse 1 and respiratory physician 1). These were in addition to various requests for pathology. Conclusions The CHAP health review was effective in identifying a number of health issues in the population of people with ID as they transitioned out of institutional care into the general community.