@VolvoGirl
https://www.ssa.gov/medicare/lower-irmaa
The request can be made only if your income decreased as a result of a life-changing event, generally using the MAGI for the year following the year from which they would normally use the MAGI. In your case, it seems that there is no decrease but there is instead effectively an increase based on the same MAGI but applied as Single instead of Married Filing Jointly.
