I want to be an pain management specialist. Any similar careers?

I want to be a pain management specialist and be able to prescribe drugs. If I go through medical school it will take me 8+ years. Is there a faster a way to be in the same field as a first step for experience? I am a nontraditional student who has already graduated from college and looking for health care experience for my MD app. Thanks.
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums