The Supreme Court recently ruled that some parts of DOMA violate the Constitution and are therefore not legal. If you were legally married in a state that allows same sex marriage and you live in a state that recognizes your marriage, the federal government recognizes your marriage, This means there will be changes to Medicare and Social Security rules for same-sex spouses. How these rules will work depends on how Medicare and Social Security understand the Court’s ruling. Parts of your Social Security and/or Medicare may change.
How Medicare is Affected by the Overturn of the Defense of Marriage Act (DOMA)