they pull up records of all the prescriptions I've had filled. Cannabis is illegal in my state, but it seems to me that if they can pull up records of regular prescription drugs, then they should be able to see cannabis cards and whether or not you've purchased cannabis. If you can buy cannabis without getting a card, I would just do that. If they make you pee before you see the doctor, then you're probably screwed.

Neither Kaiser nor my workplace found out, And I worked for the State of California.
But I bet it differs from state to state.

You might want to check the bill that passed in your state to see if it gets on any lists.

I live in Maine and most dispensaries have nurse practitioners issue the cards. I tell them my issues and no one have ever given me a hard time. As far as tracking purchases, I would think the volume is so high, you’d really have to abuse the system before anyone notices. Things have gotten a lot looser. Good luck!

On further thought, could it be an insurance issue?

which tells me they have no other way to find out if you are usuing MMJ or other drugs. It might differ in your state. Too bad they don't give breathalyzers or measuere the blood alcohol of some of their patients.

This is the major factor.
Data sharing is slightly different from state to state.
If you are in a state that is legalised, then I would ignore the "professional" and just do what you want.

otherwise, just drive to an adjacent legal state and buy what you want.
I know that's a PITA, but at least it might work.

Here in the UK, my admittance into the medical cannabis program required me to share my data with my local GP.
Luckily, my GP is a basic moron, so I've had no issues. Meanwhile, I have seedlings...

Unfortunately, there are no recreational shops where I live so I have to drive to the other side of the county.

Cannabis is still federally illegal. If you’re in the VA system it’s dicey.

I’ve had the VA for health care for decades and have tested positive for THC for that long also.
I’m currently back in the Ann Arbor VA system, my doctor there said to me when I asked for medical clearance needed for getting a card that she couldn’t help out with that…federal laws.

She mentioned that if she was private she would authorize the card in less than a heartbeat.
Plus since I test positive I cannot get a VA prescription for narcotic pain meds, I can get them if I’m hospitalized…but otherwise, no. This isn’t a big deal for me because I can use cannabis, I hate the feeling of pain medication.

Now that we’re legal in Michigan why bother with a card, I’ve always wondered if it had a benefit I’m missing.