My father got fired by his doctor after his doctor refused to fill his prescription for gout medication saying that my father did not have gout. This was despite the fact that his previous doctor, from whom he had bought the practice, had diagnosed my father's gout years before and had prescribed medication to treat it for years up till his retirement. The doctor was a West Pointer and former Army doctor and wasn't accustomed to having a patient challenge him.
Should have reported him to the State Medical Society.