Organ Donor Registration Database Privacy (USA)

I have signed up to become an Organ donor while renewing my driver's license at the DMV. What I'm most worried about, is the possibility of my name on the donor registrant database to be sold off to 3rd parties. (ie. Data brokers, insurance companies, advertising companies, etc) I haven't found a clear answer after a little bit of searching online.

Anyone have anything to help?

database privacy registration usa