This is the only hospital in Wahiawa, so if you want to seek treatment elsewhere, you may have to travel farther. The highest rated centers in Honolulu County are: The Queens Medical Center - Smart Rating of 90 out of 100. Kaiser Foundation Hospital - Smart Rating of 88 out of 100.
While some departments will consider applications that arrive after the deadlines, others will not. Also, enrollment in many departments fills up soon after the deadlines. The earlier The Graduate School receives your materials, the better your chances are for full consideration.
It really depends on the college. I would view the FAQ for admissions for the particular college you applied to. It should give you a picture of their time line. A program with a set deadline will generally not view applications until after that deadline (they are comparing you to everyone else that applied).