Medicare deduction for self employeed sole proprietorship

Can I deduct Medicare Premiums as a business expense for LLC sole proprietorship?

I have been receiving SS for all of 2021 and my Medicare part A, B, D premiums have been automatically deducted from my SS checks.  My spouse setup a sole proprietorship LLC mid 2021.  Although she did not initially do any business till later in 2021.  Can I deduct all my Medicare premiums for the year or do I need to prorate them?   If I have to prorate them do I do it from the date she setup the LLC or the date when she retired and actively began working under the LLC?