You're making a critical mistake treating healthcare as exclusively a supply problem. Supply matters, but so do prices, physician reimbursement, financing, and administrative waste.
And reducing administrative waste actually increases effective healthcare supply. Every hour doctors and nurses recover from unnecessary paperwork, billing disputes, and insurance bureaucracy is an hour they can spend treating patients. We can expand clinical capacity without adding a single new physician.
How does our healthcare system manage limited supply today? By leaving millions uninsured and making deductibles so unaffordable that sick people simply go without care? Reduce demand by making healthcare financially inaccessible, then pretend supply is adequate.
That's rationing healthcare by bank balance, then congratulating ourselves for eliminating the demand.