← All terms

Health · Chapter 17 · Parts A & B

Assignment, MSN & Appeals

Definition
Participating providers accept assignment: Medicare's approved fee is full payment, paid directly — balance billing prohibited. Nonparticipating providers may charge up to 15% above the fee schedule and collect from the patient. Claims run through regional MACs; beneficiaries get a quarterly Medicare Summary Notice (not a bill) and may appeal via a Redetermination Request within 120 days.
Easy to confuse with

These are what this term gets tested against — if you can't tell them apart cold, drill the contrast.

Related terms
Drill this termChapter lessonChapter practice test
Verified against primary sources · 2026-08-05