can i deduct medical premiums from a marketplace in excess of what appears on my 1095-A and if so how in Turbotax ?

I purchased my medical insurance through my state's marketplace last year at full price (no premium assistance).  When I received my form 1095-A, the amount shown as my premium each month was less than what I actually paid in medical premiums.  I called the state marketplace people and they said it was not an error, that the 1095-A only shows the portion of the premium which is for 'essential' coverage (meaning I guess that my chosen plan offers something more than what is legally required).  Can I deduct the portion of my actual premiums which was not included on my form 1095-A or am I limited to what's on that form ?  If I can, do I enter that incremental amount in the 'medical premiums' section of 'deductions' in TurboTax online ?