Actually there are various hospitals in United States of America which charges different fee structure so there is not one common fee structure. And the charges goes up and down according to the requirements and critical situation of operation. I am mentioning below example:

Like Pali momi medical hospital in the Hawaii State of America charges  $31,000 only for cardiac surgery including there is also a need of removing plaque from blood vessels. This does not include the fees of the doctor. However the average fees which are doctor charges for operation is 5000 dollars.

There are also various hospitals in United States of America which give discount to the patients for operation of cardiac surgery. The average discount which is offered is 30% to the patient for cardiac surgery.

Read More about Cardiac Surgery by clicking on mentioned below link:

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.careers360.com/careers/cardiothoracic-surgeon&ved=2ahUKEwiXrcm7wZ71AhXAUGwGHVidA8IQFnoECAYQAQ&usg=AOvVaw2icptq_QbSlKTYXRh8EIMH