<prompt> Human: I am on a high deductible healthcare plan with a 1500year deductible and a 4000year out of pocket maximum. I had shoulder surgery about a month ago by a doctor who is extremely well regarded and specializes in joint repair. I received my EOB explanation of benefits from my insurance provider to see that the surgery totaled somewhere in excess of 80-90K and I owed the hospital 2200 and the surgeons private practice office 1800 hit my out of pocket max.I paid the hospital but when I called the surgeons office, they were surprised and said I shouldnt have received a bill. I was calling due to the EOB from my insurance. They told me to just ignore that as this doctor doesnt make his patients pay out of pocket expenses, they just take insurance money.Is this a legitimate practice within the medical community? Should I be worried that my insurance may find out that Im still technically below my out of pocket max for the rest of the year? Ive already taken 4000 out of my HSA as well. Should I return 1800 since I wont have medical expenses to pay now?Im just paranoid that Ill have something going to collections in a year if I dont pay up.Thank you for the help!  <response>: This is actually pretty typical for large expensive procedures like this. Dont worry about it unless you get an actual bill to pay. Youre not doing anything wrong if you dont get a bill. The insurance company will not know and even if they did find out it would be between them and the doctor, you havent done anything wrong or not on the level. For future reference, never pay anything u less you get a bill. An EOB is not a bill. 