Mayo Clinic vs National Jewish Hospital Appointments

I need help with sorting out my treatment options. I am currently seeing a pulmonologist in the Chicago area who, after seeing my latest CT scan, thinks I should go on the big 3. Mayo Clinic pulmonology department contacted me, and I scheduled a visit with Dr Sarah Chalmers, pulmonologist for March 13(someone cancelled). I also have a 10-day visit scheduled with NJH for June5-14. Has anyone visited both institutions? Also, could not find any reviews on Dr. Chalmers to determine if she is more experienced with MAC then my current pulmonologist. Does anyone have experience with her? Any insight is appreciated.