It is not with all the PCPs but the number of upright physicians could be limited. The treatments and tests keep going on and the patients keep paying from their own pockets or out of the government insurance schemes.
There is a common observation that in such hospitals the doctors dispose off their patients for ensuing visits for a variety of procedures and tests. In case of cancer patients they have to keep visiting the hospitals or the clinics for years or indefinitely. I am not sure how many are finally cured or ultimately pass away.
When the medical technology had not advanced or the latest gadgets for various checkups and fast procedures had not come into being, the rate of recovery was higher and the cost was not as astronomical as it is in the present times.