I pay Medicare Part D to a private carrier. Yet on SSA-1099, Box 3, it states "Medicare Prescription Drug Premiums (Part D) deducted from your benefits" followed by an amount. Does this mean that in addition to having Part B premiums deducted, Social Security does the same for Part D? I do not understand this as I had to apply for Part D separately; I do not have an advantage plan; I have the original Standard Medicare Plan. Do private carriers report Part D premiums to Social Security? If so, why does the SSA-1099 amount not match the amount that I paid directly to the private carrier? OR do I have a problem with having paid my Part D premiums twice?
Thank you for your help.