Innerzone makes very good points. Take some time to think about it, and write down whatever you remember. Including any patient information, the staff member whose insurance is being used, any details plus what you told us. The more you can go to the medical board with if you choose to do this the more they will find. I will say don't wait too long. There may be a deadline on filing complaints (I think there is here) and if too much time passes it could be taken less seriously. Take time to decide etc. but make a deadline in your head for when you'll act or not.

YOu can find the requirements to file a complaint on the state medical board's website.

Don't be shocked if less happens than you expect. I reported a dr once and he got a slap on the wrist (all I really expected but it took a year to deal that). There was a therapist who sometimes subbed for me who was caught saying she evaluated 2 people who were out of the building and one who had died that day. Her plea bargain with the board with a week of license suspension. They don't always go rough.

If nothing else this might help you process everything.