If you don't have one, it would be good to get a oncologist/hematologist with good MGUS background. My MGUS was diagnosed because of my polyneuropathy. Also useful to get PT for balance exercises. My polyneuropathy hasn't progressed in the last 8 years. Hopefully your insurance allows you to collect doctors. I also have a gastroenterologist because of celiac and collagenous colitis (which impacts some of my blood inflammatory markers), and various other doctors for autoimmune and other conditions. None of my afflictions limit me (other than avoiding gluten), so good to live in the moment and look forward to the future.