I went to a primary care physician for the first time in over a decade a couple months ago to deal with my thyroid. The dumb hispanic woman in the reception area forgot to bill my insurance for the visit and instead billed me the full amount for my doctor's visit. I had to call the office, who then told me to call the billing department of the hospital network they were part of, in order to get it fixed, and it was at least 30 minutes on hold.