Please remember.........Medicare is NOT accepted in Aruba.
No USA health insurance plans are accepted in Aruba.
If you get treatment in Aruba, Medicare will not reimburse, but the supplement "may" reimburse.
(Save your receipts so that you can submit to your health insurance and/or travel insurance for possible reimbursement)
Please remember to get "trip insurance"
a good place to start is www.insuremytrip.com