Many seniors review their health care coverage at the end of the year.  At this time of year, some companies make changes to their insurance plans for retirees.  Sometimes these changes can make Medicare supplement insurance policies attractive.  The changes companies may result in higher monthly premiums, higher deductible, or maybe both.  For many seniors, a medicare supplement policy might make sense due to the cost and the degree of coverage since the out of pocket can be very low.  One important thing to take into consideration when leaving group insurance is RX coverage.  If a senior drops the retiree group health insurance plan and buys a Medicare supplement, that person should strongly consider buying a Part D policy.