Millions of Americans rely on Medicare Advantage for their healthcare coverage, but having a plan that worked well in 2026 doesn’t guarantee the same benefits or costs next year. The Centers for Medicare & Medicaid Services (CMS) projects that approximately 34 million people will be enrolled in Medicare Advantage in 2027, representing about 47.4% of all Medicare beneficiaries. While federal officials expect average premiums to decline, individual plans can still change their provider networks, prescription drug coverage, out-of-pocket costs, and supplemental benefits. Some insurers are also reducing their offerings in certain markets, making this year’s enrollment review particularly important. Before assuming Medicare Advantage plan changes won’t affect you, there are several things worth checking ahead of the December 7 deadline.
