Make sure to check into whether an advantage plan is the best option. Mayo Phoenix does not take advantage plans. I see other groups are starting to not take advantage. There is also a penalty if you do not sign up for the supplement at time of eligibility. My understanding the requirements for for a supplement are dictated to all carriers. Not really much shopping. I use Humana because they offer silver sneakers. My gym membership is covered. They have a zillion different drug plans. They are all different and different costs. One at $10 month might cover just as much as another at $40 month. Best to shop your drug plan.