Medical branches of Free Masonry?

okay, i am thinking about college and how i am going to pay. the military interests me but i dont want to be in the reserves as it is somewhat pointless. however i do remember a patient of mine from clinicals who was a mason and he told me to look into the masonry and that there are groups who would take me in to help me out and in turn i would also like to become a part of their group. what are some of these groups called? can you help me out because i would like to know more.