Only after-tax health insurance premiums paid are deductible under the Medical section. These would premiums you paid on your own, independently from your employer.
If you paid for your health insurance via payroll deductions, these would be pre-tax and not deductible again.
https://www.irs.gov/publications/p502/ar02.html#en_US_2016_publink1000178947
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"