Check it out -- there are a lot of great small communities nearby that are more affordable for retirees than Rochester itself - with Mayo Clinic, the college and all of the related hi-tech, it's a pretty pricy place to live, unless maybe you are moving from California or New York...

Also, once in the area, Mayo Clinic has a whole lot of satellite primary care clinics in the area, because Mayo Clinic itself doesn't do primary care. @johnbishop may be able to tell you more about that - and the surrounding towns.