Primary care services are your go-to tools for managing and improving your health. At Tanner Health System, our primary care doctors are committed to seeing you achieve your health goals and feel your best. Here are some resources you can use to be an active participant in your care. Internal medicine and family medicine Internal medicine physicians specialize in primary care services for people age 18 and older. Family medicine physicians often provide general primary care services to children, adults and older adults. Find a primary care doctor. Sign up for a class or event. Browse our locations.