Complex, multimorbid patients are individuals within whom multiple chronic diagnoses (usually, more than two)1 intersect additional complications—diminished function, cognitive impairment, homelessness, or substance abuse, for example. As many as one third of patients are multimorbid, with correlates of socioeconomic deprivation, increasing health services utilization, and mental health comorbidity.2 The growing scope and scale of care for complex, multimorbid patients has led to corresponding changes in the comprehensiveness required of health systems.