The Primary Care Physician performs specialized treatment of complex physical and/or mental illness in the inpatient, or outpatient clinical settings. Treatment will include comprehensive assessments and ongoing care of the physical and medical need of individuals being cared for in the respective service/unit. The population of male and female Veterans serviced ranges from adult, age 18, to the elderly adult, age 65 and over. Age-related and cultural intervention appropriate to the cognitive, physical, and emotional needs will be always employed, tailored to the individual patient, incorporating knowledge of changes associated with aging and principles of growth and development.