What they need and want most from you is your proof of insurance.  The system in the US is totally broken.  Barring a socialized medical system, I am in favor of a total break up of the perverted threesome going on between health care, insurance and employment.  That is right.  I do not believe in employer provided insurance.  I also do not believe in insurance covering anything but catastrophic events.  Removal of the role of insurance and employer provided insurance is a way to deflate costs.  Right now, I do not see any realism to costs because insurance detaches those from reality.