Cognitive symptoms in patients with Parkinson's disease are associated with more rapid deterioration and eventually, a two-fold increase in mortality. Patients with cognitive impairment place a greater burden on their care givers and many such patients are admitted to nursing homes. Primary care plays a significant role in the recognition of DLB and PDD. Early recognition and referral to a specialist memory clinic can help to educate the patient about their often worrying symptoms and initiate the relevant treatment. Through the involvement of the multidisciplinary team, appropriate care networks can be set up to provide support and education for both patients and carers.