Re: what kind of doctor treats the si joint
I would suggest finding a pain management specialist. They are usually pretty good at diagnosing SI joint problems and at treating them.
One way to test is to inject lidocaine and see if you get relief. If you do, the dr can then decide which method of treatment would be best for you. In my case, we chose to do a radio frequency neuroablation and it worked wonderfully.
Best of luck.
2 lami's, 3 fusions
bone spur removal
cerv. fusion, 1 level