A deductible .. yes is what you have to pay out of your pocket first before the insurance kicks in....
However, most insurance policies do pay on preventive health care with a small co-pay. So, for example - I have a $1500 deductible - however, I can visit my doctor as many times as I want and only pay $10 until I reach my deductible then it become $0. She also can run all labs on me without cost to me - since labs are used to detect and prevent bigger problems with no cost to me.
Now, I had to pay for my prescription - but at a reduced rate - the cost it is for my insurance company - until I reached my deductible.
If I needed to have emergency surgery or a hospitialization then I would have to reach my deductible before my insurance kicked in.
I reached my deductible the first week of the year ... I have a prescription that cost $2200 a month ... so I haven't had to pay anything else this year ... which will include my chest reduction surgery