Medicare states, [i]f you have ESRD, you'll usually get your health care through Original Medicare. You can only join a Medicare Advantage Plan in certain situations, like these:
You're already in a Medicare Advantage Plan when you develop ESRD. You may be able to stay in your plan or join another plan offered by the same company.
You’re already getting your health benefits (for example,
through an employer health plan) through the same organization that
offers the Medicare Advantage Plan.
You had ESRD, but have had a successful kidney transplant,
and you still qualify for Medicare benefits (based on your age or a
disability). You can stay in Original Medicare, or join a Medicare Advantage Plan.
You may be able to join a
Medicare Special Needs Plan (SNP)
for people with ESRD if one is available in your area.
You have a one-time right to join another plan if both of these are true:
You have ESRD and are in a Medicare Advantage Plan
The plan leaves Medicare or no longer provides coverage in your area
You don't have to use your one-time right to join a new plan immediately.
If you go directly to Original Medicare after your plan leaves or
stops providing coverage, you'll still have a one-time right to join a
Medicare Advantage Plan later.