United Health Care is by far the worst health insurance company in the United States. It is by far the WORST Company I have ever tried to deal with. Just recently I had to have an MRI. My plan states that I have a 90% coinsurance. So when I received the bill I thought that it was a mistake that they only covered the procedure at 80%. You may think that’s not so important, but for an MRI that was over $200.oo dollars extra out of my pocket. I called them and found out that they would have covered the procedure at 90% if I had obtained the... read full review »