i'm on SSD/medicare with a unitedhealthcare supplement.

found out the hard expensive way united won't pay for somethings even though their PCP referred me to a clinic. they say that clinic isn't on their list though the doctor that works there is. probably have to eat that large bill.

can others here advise if and what affordable companies offer PPO plan that i may be able to afford so i can get around this bs of unitedhealthcare?