Where do I enter personally paid Medicare Part B insurance?

I am retired and pay into Medicare Part B each month.  On the TT Social Security Benefits worksheet, it lists the amount my husband has deducted from his meager Social Security check each month, but I do no qualify for receiving SS, and I pay for Medicare Part B.  Where do I enter this amount?  Do I consider it with privately paid medical premiums?  I do not receive an SSA 1099 form for my Medicare Part B.   Thank you in advance if you can assist.