In exchange for $99 a year I can access a primary care doctor at One Medical but I and/or my insurance company still have to pay fees when I actually see the do

In exchange for $99 a year I can access a primary care doctor at One Medical but I and/or my insurance company still have to pay fees when I actually see the doctor. This compares to my current situation of paying $0 a year to have access to a primary care physician and then I and/or my insurance company paying fees when I see the doctor. What is the benefit to me for paying $99 a year?