for 2022 SS withheld Medicare B & D premiums based on an IRMAA of $380,000. My spouse retired in 2021 and for 2022 our income was less than $50,000. I completed the required form and for 2023 they have reduced the premium to the correct amount of $164.00. However their letter stated I was owed only $337.40 through December 2022, which I believe should be about $5304.00 ($616.00 x 12 = $7392.00 S/B $174.10 x 12 =$2089.20. Are they required to refund this money an dhow to I go about requesting it. It says I can file an appeal? Thank you for the help!

Hi. Yes, if you were overcharged for your Medicare premiums then the amount you overpaid should be refunded. However, there isn't enough information in your question for me to be able to tell you whether or not you are actually due a refund. If you believe that the amount you received is incorrect, you should probably file an appeal. You may also want to ask Social Security for an explanation, since they have access to all of your records.

Best, Jerry