I found at least one doctor who will barter for healthcare. I don't think a chicken will buy you an MRI or cover your chemo though.
Bartering For Health Care Rises:
When people in Floyd County, Va., visit Dr. Susan Osborne, they can pay for their medical exam with vegetables, lessons, carpentry services as well as cash. Bartering is a way of life in the rural area, Dr. Osborne says: "It just gives people another avenue to have health care."