Choosing between Medicare Advantage and Medicare Supplement coverage is one of the most consequential decisions a Medicare beneficiary can make. With 2027 plan projections now available, understanding how costs, drug coverage, and extra benefits compare has never been more important.
Understanding the Two Main Coverage Paths
Medicare beneficiaries generally have two ways to build on their Original Medicare coverage: enrolling in a Medicare Advantage plan or pairing Original Medicare with a Medicare Supplement (Medigap) policy. These approaches work very differently, and the right choice depends on an individual’s health needs, financial situation, and preferred access to care.
Medicare Advantage plans bundle hospital, medical, and often prescription drug coverage into a single plan offered by a private insurer. Medigap policies, by contrast, work alongside Original Medicare by helping cover expenses like deductibles, copayments, and coinsurance that Original Medicare does not fully pay (source). Medigap does not typically include prescription drug coverage, so beneficiaries who choose that path often need a separate Part D plan.
2027 Medicare Advantage Premium Trends
One of the most significant developments for the 2027 plan year is a notable drop in Medicare Advantage premiums. The weighted average monthly premium across all Medicare Advantage plans is projected to fall from $14.37 in 2026 to $12.00 in 2027, representing a 16.5% decrease (source). For beneficiaries currently paying higher premiums, this shift could offer meaningful savings.
Prescription drug costs within Medicare Advantage plans are set for an even more dramatic reduction. The average prescription drug premium embedded in MA plans is projected to drop 38%, falling from $11.32 per month in 2026 to approximately $7 per month in 2027 (source). This trend makes bundled MA plans increasingly attractive for beneficiaries who want to manage their drug costs within a single monthly payment.
Stand-Alone Part D Drug Plans in 2027
For those who choose Original Medicare with a Medigap policy, prescription drug coverage requires enrollment in a stand-alone Part D plan. The total average monthly premium for these stand-alone plans is expected to rise by less than one dollar, moving from $35.09 in 2026 to approximately $36 in 2027 (source). While this represents near stability, it still places the stand-alone Part D cost considerably above the drug component built into most MA plans.
Beneficiaries comparing these two paths should weigh not just the premium differences but also factors like formulary coverage, pharmacy networks, and cost-sharing tiers for the medications they take regularly. A plan with a lower premium might still result in higher out-of-pocket drug costs depending on which medications are covered at what tier.
Extra Benefits: Dental, Vision, Hearing and More
One area where Medicare Advantage plans consistently outperform both Original Medicare and Medigap arrangements is in supplemental benefits. These plans are permitted to offer extras such as dental care, vision coverage, hearing aids, and wellness programs that fall entirely outside the scope of what Original Medicare covers (source). For 2027, these supplemental benefit offerings are expected to remain stable, continuing to provide value to the millions of beneficiaries already enrolled.
Medicare Advantage enrollment is projected to reach 34 million people in 2027, accounting for roughly 47.4% of the total Medicare population (source). The availability of dental, vision, and hearing benefits is widely cited as a major driver of that enrollment growth, particularly among beneficiaries who would otherwise face significant out-of-pocket costs for those services.
Medigap plans do not include these types of supplemental benefits. Their value lies instead in providing financial predictability by capping or eliminating cost-sharing on covered medical services. For beneficiaries who see many specialists or require frequent hospital care, that predictability can outweigh the absence of dental or vision extras.
How to Compare Plans During Open Enrollment
Each year between October 15 and December 7, Medicare beneficiaries have the opportunity to compare available plans and switch between Medicare Advantage and Original Medicare with or without a Medigap policy (source). This window, known as Medicare Open Enrollment, is the primary opportunity most beneficiaries have to adjust their coverage based on changes to their health needs or finances.
A key tool in this comparison process is the Annual Notice of Change, which plans are required to send each fall. This document outlines how a plan’s costs and benefits are shifting for the upcoming year, giving beneficiaries the information they need to decide whether staying with their current plan or switching still makes sense (source). Reviewing this document carefully before the enrollment deadline can prevent unexpected cost increases or benefit losses from going unnoticed.
When comparing a Medicare Advantage plan against a Medigap-plus-Part D combination, a thorough analysis should account for total monthly premiums across all components, annual out-of-pocket maximums, provider network restrictions, and which supplemental benefits carry the most personal value. A plan that looks cheaper at first glance may carry higher cost-sharing for the specific services a beneficiary uses most.
Why You Should Learn More About 2027 Medicare Plan Options Today
The 2027 plan year brings genuinely favorable cost trends for Medicare Advantage enrollees, with lower average premiums and sharply reduced drug costs built into those plans. Stand-alone Part D premiums are holding nearly steady, while supplemental benefits like dental, vision, and hearing remain widely available through MA plans. Medigap continues to offer financial predictability for those who prioritize broad provider access and controlled cost-sharing on medical services. Whether a beneficiary is new to Medicare or reassessing their current coverage, reviewing updated plan details before the Open Enrollment deadline ensures that the coverage chosen truly reflects current health needs and financial priorities.