I agree with the above post. You WILL have to go through basic (no shortcuts for enlisted soldiers), and then Medical Specialist Course (i.e.. Medic) They may make you a specialist (e-4) or a PFC...
Have you looked into the Army Reserve? You can join as either a 68W M6(LPN) or as a medic (68W). You'd have to go through Basic and then Medic school. After that, you would drill with you unit 1...