Comparing Medicare Advantage Plans: Coverage and Costs

A Medicare Advantage plan is one of the two main ways to receive Medicare benefits. Instead of getting coverage directly through Original Medicare, you enroll in a private plan that must provide at least the same core benefits, and many plans add extras like dental, vision, hearing, or fitness programs. The catch is that no two plans are identical. Premiums, deductibles, copays, provider networks, drug formularies, and extra benefits can differ dramatically, even between plans offered in the same area.

This guide walks through what Medicare Advantage plans cover, how their costs are structured, and which features matter most when you compare them side by side. It is informational only and is not a recommendation of any particular plan.

What Medicare Advantage Actually Is

Medicare Advantage, sometimes called Part C, is a bundled alternative to Original Medicare (Part A and Part B). When you join one, the plan administers your Medicare benefits rather than the federal government paying claims directly. You keep your Medicare enrollment, and you generally must keep paying the standard Part B premium, plus whatever premium the plan itself charges.

Most Medicare Advantage plans also include prescription drug coverage, which is why they are often labeled as MA-PD plans. A smaller number exclude drugs, in which case you would need separate drug coverage.

Coverage Every Medicare Advantage Plan Must Include

All plans are required to cover a core set of services. These are the baseline you can count on when comparing options:

Inpatient hospital care, including stays, surgeries, and related services
Outpatient medical care, such as doctor visits, lab work, and preventive screenings
Emergency care and urgently needed treatment
Prescription drug coverage in most plans
Preventive services like annual wellness visits and many screenings

Anything beyond that core — dental cleanings, eyeglasses, hearing aids, gym memberships, transportation, over-the-counter allowances — is optional and varies by plan. These extras are often the loudest selling points, but they should not be the deciding factor on their own.

The Main Types of Medicare Advantage Plans

Plan structure affects how much freedom you have and how much paperwork you deal with. The most common types are:

Health maintenance organization (HMO): Usually requires you to use in-network providers and often requires a referral to see a specialist. Costs inside the network tend to be lower.
Preferred provider organization (PPO): Lets you see out-of-network providers at a higher cost. Referrals are often unnecessary.
Private fee-for-service (PFFS): You can see any provider that accepts the plan’s terms, but fewer providers may accept it.
Special needs plans (SNP): Designed for people with specific conditions, such as certain chronic illnesses or dual eligibility for Medicaid.

If keeping your current doctors is important, network type is the first thing to check — before comparing prices.

Comparing Costs: The Numbers That Matter Most

A low monthly premium can hide higher costs elsewhere. Compare these four figures together rather than in isolation.

Monthly premium

Many plans advertise a zero-dollar premium, but you still pay the standard Part B premium. A plan with a premium may offer lower copays or broader networks that offset the monthly cost.

Deductible

Some plans have no deductible for medical services; others do. Check whether the deductible applies to all services or only to specific categories such as hospitalization or drugs.

Copays and coinsurance

These are your per-visit or per-service costs. A plan with a low premium might charge more for specialist visits, imaging, or hospital stays. Look at the services you actually use — not just the ones you hope you never need.

Annual out-of-pocket maximum

This is the cap on what you pay in a year for covered in-network care. It is one of the most important protections a plan offers. A plan with a lower maximum limits your financial risk if you have a serious health year.

Drug costs

If the plan includes drug coverage, check the formulary (the list of covered drugs). Confirm that your prescriptions are on it, what tier they fall into, whether prior authorization or step therapy is required, and what the pharmacy costs are for in-network versus mail order.

Where Plans Differ Most in Coverage

Beyond the required benefits, these are the features that separate one plan from another:

Provider network size and whether your doctors and hospitals are included
Referral rules for specialists
Extra benefits such as dental, vision, hearing aids, fitness memberships, or transportation
Allowances like over-the-counter spending cards, which usually expire if unused
Coverage while traveling, including whether routine care outside the service area is covered
Care management programs for chronic conditions

Medicare Advantage vs. Original Medicare at a Glance

Feature	Original Medicare	Medicare Advantage
Provider choice	Any provider that accepts Medicare	Usually limited to a network
Drug coverage	Separate plan needed	Often bundled in
Extra benefits	Generally not included	Common in many plans
Out-of-pocket limit	No annual cap on Part B cost sharing	Capped annually
Paperwork	More, with separate bills	Usually simpler

How to Compare Plans Step by Step

List your prescriptions and doctors. These two factors eliminate many plans immediately.
Check network status. Confirm each doctor and hospital is in-network for the coming year, since networks can change.
Estimate your yearly costs. Add the annual premium to expected copays for your typical care, then consider a worst-case year against the out-of-pocket maximum.
Review the drug formulary. Verify tiers, restrictions, and pharmacy options for every medication you take.
Compare star ratings. Quality ratings summarize member experience and plan performance.
Read the summary of benefits. This document lists exact costs for each service and is more reliable than marketing materials.

Common Mistakes to Avoid

Choosing on premium alone and ignoring the out-of-pocket maximum
Assuming a current doctor will stay in the network next year
Overlooking prior authorization requirements for drugs or procedures
Valuing extra benefits more than coverage for the care you actually use
Missing the enrollment window and being locked in for the year

When You Can Switch Plans

Changes are generally allowed during the annual enrollment period in the fall, with coverage starting the following year. There are also special enrollment periods for certain life events, such as moving or losing other coverage. Review your plan’s costs and network every year — a plan that fit last year may not be the best fit now.

The Bottom Line

Comparing Medicare Advantage plans comes down to three questions: does the plan cover the doctors and drugs you rely on, what will a typical year cost you, and how much risk do you face in a bad year? Answer those with the plan’s official summary of benefits, and the extras become a bonus rather than the deciding factor.

If you want more plain-language guidance on health coverage, enrollment timelines, and everyday financial questions, explore the other helpful guides available on the site.