ITA review: 906 dollars bill in addition to 35 dollars co pay for what?

I was introduced to Dr Han Zhu for heart check up and first meeting, she changed my medicine that was suggested by Kaiser. I had a recent bone marrow transplant for Blood cancer. Her medicine caused me major dizziness and low BP. Even Nurse from ITA said, the dose is way too high for anyone. ITA nurse informed them but no response. Now after a month I meet the Dr Han Zhu again only for 5 minutes and when she heard my complaint, she reverted the medicine to one that Kaiser suggested and yesterday I got a bill of 906 dollars in addition to 35 dollars of co-pay. I have written an email asking her, no reply. Currently I have no issues and she still changed my medicine. Last whole night I didn't get sleep because of such bill. In this case - her medicine caused me a problem and I still have to pay 906 out of pocket. It appears as scam. She just checked my heart rate which was normal and this is the bill. First change a working medicine to wrong one and then revert it back and then charge so much money - for what? Just look at her? I can pay anyone in India over phone and can get better medicine. I will cancel all the future appointments as I can't afford such doctor whose medication caused me issues and I still have to pay 906 dollars for the visit for doing nothing. These complaints should go to consumer complaint bureau. I will put this review on every page and also will file complaint to every place for causing me so much stress and money.