You can request them. in my case it took about 6mo's to a year to get the confirmation of what my grandfather earned, then another 6-8 months to get the actual medals.
I have his award confirmation in the documents section at my website....that's what they send you before they ship the medals. i just got the medals last week, so the date on the letter should give you an idea of how long it takes.
I would request them from the government, they will eventaully come. the nice thing was that they engrave (or at least they did mine), my grandfathers bronze star and his good conduct medal. pretty cool.
you can also write to your local congressman. This worked incredibily fast for me, but they sent a very incomplete set of medals. i think it took about a month from the start to the finish from writing my congress man, but i only received 2 awards of the 10 or so i had coming . In any request, i would include any information you have at your disposal, discharge papers, etc. to help in their research.