The next wait is the month or more before your appointment rolls around. Obviously, you can get faster care in the case of an emergency.
There is also waiting involved on the day of your appointment. Just because you have an appointment for a certain hour doesn't mean you can expect to be seen at or around that time. Things work on a first-come-first-served basis. Many people send retired relatives ahead, in the early morning hours, to hold their place in line. Then the actual patient shows up closer to the time when they will be seen by the doctor. Cellphones have made this a much more accurate science. "Just two more people ahead of us, Luigi, get over here quick!"