Ok, I do not know if you have tried this yet. http://ripatients.org/ They have a contact us section, shoot them an email and le tthem know you are looking for a doctor. Lots of good info there but I did not see any specific doctors links there. Also shoot these guys an email and let them know your problem and if there are any doctors that are not from the stone ages. http://safeaccessnow.org/

This site is from RI and they have a medical section.. http://boards.cannabis.com/rhode-island-ri/ might be some people there that can point you in the right direction.