I had similar markups at my sleep doctor. It was funny because a $20 part from Amazon would be sold for $200 and end up costing $50 for me after my insurance co

I had similar markups at my sleep doctor. It was funny because a $20 part from Amazon would be sold for $200 and end up costing $50 for me after my insurance co-pay. At first they were real pissy about me buying things from third parties but eventually just gave me the part list and stopped mentioning how I never bought stuff from them.