Have you thought out why you want to change and switch careers? Could you be wanting to switch offices? It is a big step to take and depending on your financials could be a boost or a deal breaker. So, you need more information.
I would check with local medical training schools and see if any of my on the job training skills would translate into credits with testing and no classes. I would also see if I could find some surgical people to kind of test the waters and see if you could find out the avg salary range and the best employer. I would definitely get more info before I jumped.

Good luck