My sister enrolled me in SS in Washington
State when I turned 62 in 2002, while I was in the Caribbean
. In 2005, I visited the SS office on the island of St Thomas in the USVI's and enrolled in Medicare. Per the offices suggestions I also included Type B and Type D. Currently, $103 a month is deducted from my SS payment for Type B. If I had not enrolled when I was 65, Type B would have been higher and drugs under Type D would have a higher copay. Medicare only works in US Government
approved Health Care
organizations and Type B pays 80%. Medicare works in PR and the USVI's.
When I returned from cruising, I enrolled in the AARP endorsed supplemental plan to cover the remaining 20% of type B coverage. In 2009 this cost $152 a month and increased to $160 a month the next year. I switched to a local company that uses Blue Cross for $56 a month, this will increase to $63 a month for 2014 and copays have gone up $5 to the $20-$30 range. With ACA, more services are offered.
BTW for reasons known only to Congress, you are allowed to change your supplemental plans, that you currently have, only during specific dates in the fall, and those dates change from year to year.