Ferritin
What it measures
Ferritin is the protein that stores iron in your body. A low level points to low iron stores. A high level can mean too much iron, or it can be a sign of inflammation.
When it’s ordered
Anemia, tiredness, and checking for too much iron in the body.
Medicare coverage
Governed by NCD 190.18 (Serum Iron Studies). This national rule lists the diagnoses that support the test. A claim billed with a diagnosis that is not on the list can be denied.
Typical price
Medicare pays a set rate of $13.63 for this test (2026 fee schedule). When Medicare covers this test, you pay nothing. A lab can bill far more if you pay on your own or if Medicare denies the claim, so ask for the price first.
One thing to watch
Ask which reason the office will put on the order before the blood draw. "Routine exam" alone may not support the test.
Look up the current Medicare allowable for Ferritin →
Rates and coverage rules shown apply to Original Medicare (Fee-for-Service) only. Medicare Advantage plans may differ. See our data sources →