I was with Kaiser for a long time because I never needed a doctor. When I did, I had to fire kaiser. They nearly killed me. Talking to my coworkers, it turns out this is quite common. They hire a lot of people that received their medical degree in countries with much lower standards. It's actually quite concerning how many people I know IRL that lost friends due to misdiagnosis by Kaiser. It doesn't help that you can't (easily) sue them. You agree to a non arbitration clause.
I see a lot of folks praising KP in this post and it's very concerning.