"I have used marijuana for a long time but actually want to get a card to go to a local dispensary. I’m worried that my employer will find out though. Is this possible that they will find out I got a card?"
No. Information that is received by HelloMD cannot be seen or accessed by anyone! It is kept on secure web based servers and not reported to any government agency or employers. Your employer will never be informed by HelloMD.
That being said, if you register your recommendation with the State of California, which you do NOT have to do to visit a dispensary to purchase cannabis, it will be stored on their servers. As you have heard many times, government servers are hacked with frighteningly often regularity.
Perry Solomon, MD