We should be notified right away when a person dies; but you cannot report a death or apply for survivors benefits online.
I can only report death through the web or by going to the offices? What would be the consequences if I can't sign up for Medicare on time?
Then your Medicare coverage may be delayed and cost you more. On page 12 of your Medicare booklet you can find out what may happen if you delay.
I have another retirement plan issue for you. What if my ex-husband has a claim to his own pension?