Politicians criticize pharmaceutical and medical device companies for driving up costs, but these companies are often the key drivers for medical innovations, with many of them found in the United States and Israel. New technologies are necessary for the best medical care and without the rewards of the U.S. system, innovation is threatened, and this would negatively affect the whole world.
Your doctor opposes Medicare for All. To pay for Medicare for All, doctors and other medical professionals will see their pay fall and workloads increase. This will have a negative impact on people investing the huge sums of money, time and effort to become doctors. Invariably this would mean more Physicians Assistants delivering care and subsidies to convince people to enter medical school.
As the U.S. government is already one of the largest payers, it already de-facto sets pricing for services and treatments. We already see service delivery issues at Centers for Medicare and Medicaid Services and these issues are only likely to increase with more government red tape and overcrowding.