ummm....I'm not exactly clear on this. Are you talking about the Medicare part D plan? This would be the Rx plan that went into effect on Jan 1st for Medicare members for prescription drug coverage. I'm not aware of anyone being made to join Medicare itself, but they will enroll you in the part D plan of their choice if you don't pick your own. I just went through this, and they don't take anything out of my Social Security check. I think there was the option of not participating in part D, but I don't know if this is still an option since it's after Jan. 1st and the plan has already gone into effect. Try medicare.gov to see if it can answer any questions for her.