Dementia is the term used to describe progressive impairment of thinking and memory that interferes with daily function. Dementia is not a specific disorder; rather, it is a condition with many causes. Alzheimer’s disease is the most common cause of dementia. Other common causes of dementia include vascular dementia, dementia with Lewy bodies, primary progressive aphasia which comes in the logopenic, semantic, and nonfluent/agrammatic variants, behavioral variant frontotemporal dementia, and normal pressure hydrocephalus. Primary care providers are able to diagnose most straightforward cases of dementia, whereas specialists such as neuropsychologists, neurologists, psychiatrists, and geriatricians may be needed when the diagnosis is not straightforward.