I wonder with so many doctors not taking Medicare and Medicare Advantage plans.

Is there that many younger patients available to supply the necessary income
To keep the doctors in their copious lifestyle. I figured the large percentage of their patients were seniors?

Am I wrong?

Copious lifestyle? If YOU attend medical school for 8 years, and spend over $250,000 for your education... and then have to make enough to pay for the rent, the support staff, the equipment... and everything else... a Doctor is lucky to have broken even by their 20th year in practice.

Instead of your iPhone and $300 a month cell phone bill, your $150 cable TV bill and your bigger than you need car and what you spend going out with your friends partying... you could have paid for your own health insurance.
Judging by the condecending tone, have you even attended college yourself to get a better job? And how much do you feel your time is worth? And what special skills have you earned to make yourself worth more than someone without an advanced degree?