Can I deduct from 1099 income my premiums included in W-2 earnings if my company offers group health insurance? I chose to buy private supplemental ins. I am on Medicare

I have 1099 income for work as a contractor. Also have W-2 salary. Company paid on our behalf the premiums for Supplemental and Part D of medicare. Entered in W-2 as taxable earnings. Can I deduct those premiums from my schedule C?


Thanks