Are medical insurance premiums deductible

When my wife was working she had a family medical insurance plan through her company.  In 2017 she turned 65 and had to move to Medicare.  I was allowed to continue on her former company's insurance plan as I was not 65.  She was retired and was no longer receiving any compensation from the company.  Are the medical insurance premiums I am paying (as an individual and not as a self-employed person, etc) deductible on our personal income taxes.