the answer is here . it may not be worth the effort .
yes you can do it but effectively the checks you receive prior to suspending will reduce the amount you get for life even though you continue to grow by suspending .
next year if there is a cola the pool is big enough that the rate will drop since everyone will then share the increase in costs not just those who are on medicare but didn't file yet or suspended ,. . in the mean time if not by being suspended next year he is not covered under hold harmless for the next increase .
http://time.com/money/4001110/medica...w-time-claims/