When Can Medicare Supplement Plans Be Changed? 
You can change Medicare Supplement Plans any time that you choose . Usually the effective date on a plan change is the 1st of a month so I guess 12-times a year is the maximum . But you should reshop your plan EVERY time you have a rate increase . If you purchased your plan through an independent insurance broker , all it takes is one phone call . You can shop and change plans and companies but keep the same agent . 