I just got an ABN from the blood test lab, and I am very confused.

[yellowdogintexas]

7. Susan it may have been some or all of the charges.

Most providers will have a similar form to confirm you will pay the difference after insurance.
It's pretty normal in medical insurance and your doctor's insurance person would know that. Ask the dr's office if they have a similar form that patients sign stating that he/she will pay for any non covered service or the portion not paid by insurance. I know I sign one every year at my doctor's office.

Medicare.gov isn't going to know squat about how that payment will pan out or what labs may end up being denied in full. They are responsible for elegibility, premiums and so forth, but they don't do the claims and won't be trained in those specifics.

If you have an Advantage plan the company you bought it from could help you find out if any of the labs were totally non covered. If you have Part B Traditional, there is customer service information on your explanation of benefits forms and they can help you. Your Medicare manual that we all get probably has the phone number you need.

Good luck!