Are Medicare Premiums And Supplemental Premiums Deductible By Individuals When Paid Out Of Pocket?

Our medicare premiums are deducted from our SS checks; We each pay supplemental health insurance premiums; along with RX supplemental health premiums; dental and vision supplemental premiums; should these NOT be deductible since they are paid out of our income (SS deducts premium before NET); and the rest we pay from our bank account – auto pay? The foregoing does not include what we have to pay as co-pays; actual out of pocket expenses, etc. that are NOT covered by health insurance supplemental and 20% from medicare — our part to pay.