How to Compare Medicare Advantage Plans: The 7 Dimensions That Actually Matter

There are over 4,000 Medicare Advantage plans available in 2026. The average beneficiary has access to 43 plans in their county. Comparing them without a structured approach is like shopping for a car by only looking at the sticker price. You need a framework that evaluates what actually determines your experience and total cost of care.

This guide gives you that framework. Instead of generic questions, you will get 7 specific comparison dimensions, what to look for in each one, and a worksheet you can use to evaluate plans side by side.

Why You Need a Comparison Framework

Most people compare Medicare Advantage plans by looking at the monthly premium and maybe checking if their doctor is in-network. That approach misses the factors that actually determine how much you spend and how easily you access care throughout the year.

Consider: two plans in the same zip code can both have a $0 monthly premium but differ by $5,000 in maximum out-of-pocket exposure, cover completely different medications, and require prior authorization for different services. One might have a 4.5-star CMS rating while the other has 2.5 stars. The premium tells you almost nothing about the plan's real value.

A structured comparison framework ensures you evaluate every plan on the same criteria, so you can make an apples-to-apples decision rather than being swayed by marketing materials or a single attractive number.

The 7 Comparison Dimensions

When you compare Medicare Advantage plans, evaluate each one across these 7 dimensions. They are listed in order of impact on your healthcare experience:

1. Network Type and Provider Access

The network type determines the fundamental rules of how you access care. This is the single most important structural difference between Medicare Advantage plans.

To compare networks effectively, make a list of every provider you currently see (primary care, specialists, preferred hospital, lab, imaging center) and verify each one is in-network for the plans you are considering. Do not rely on the plan's marketing. Call the provider's office directly and confirm they accept the specific plan, not just the carrier.

2. Maximum Out-of-Pocket (MOOP)

The MOOP is the most you will pay for covered services in a calendar year (excluding premiums and Part D drugs). Once you hit this limit, the plan pays 100% for the rest of the year. This number represents your worst-case financial exposure.

When comparing plans, do not just look at the MOOP number in isolation. A plan with a $3,500 MOOP and a $50/month premium may provide better protection than a $0 premium plan with an $8,850 MOOP. If you have a major health event (hospitalization, surgery, cancer treatment), the difference between a $3,500 MOOP and an $8,850 MOOP is $5,350 in real money out of your pocket.

3. Prescription Drug Coverage

Most Medicare Advantage plans (MAPD) include Part D drug coverage, but formularies vary dramatically. The same medication can be Tier 2 (preferred brand, $20 copay) on one plan and Tier 4 (non-preferred specialty, 33% coinsurance) on another. For 2026, the new $2,000 annual Part D out-of-pocket cap applies to all MAPD plans, which limits your maximum drug spending.

To compare drug coverage properly:

1. Make a complete list of every medication you take, including dosage and quantity.

2. Enter your drug list into Medicare.gov's Plan Finder tool. It will show you the estimated annual cost for each plan.

3. Check which tier each drug falls on for each plan you are considering.

4. Look for restrictions: prior authorization (PA), step therapy (ST), and quantity limits (QL).

5. Verify your preferred pharmacy is in the plan's preferred pharmacy network (costs are lower at preferred pharmacies).

6. Check if mail-order is available for maintenance medications (often 90-day supplies at lower cost).

4. Extra Benefits

Extra benefits are where Medicare Advantage plans differentiate themselves most visibly. These are benefits that Original Medicare does not cover but that MA plans can offer because of how they are funded. In 2026, the most common extra benefits include:

When comparing extra benefits, focus on what you will actually use. A plan with a $2,000 dental allowance sounds impressive, but if you have healthy teeth and only need cleanings, a plan with basic preventive dental and a lower MOOP may serve you better. Prioritize benefits that address your specific health needs.

5. CMS Star Ratings

The Centers for Medicare and Medicaid Services (CMS) rates every Medicare Advantage plan on a 1 to 5 star scale based on quality of care, customer experience, member complaints, and health outcomes. Star ratings are not marketing. They are based on audited performance data.

Star ratings matter for a practical reason beyond quality: plans with 4+ stars receive bonus payments from CMS, which they typically reinvest into richer benefits, lower cost-sharing, or broader networks. A 4.5-star plan often has materially better benefits than a 3-star plan from the same carrier in the same county because of this funding difference.

You can find star ratings on Medicare.gov Plan Finder or by searching your zip code on our Medicare Advantage plans page.

6. Prior Authorization Burden

Prior authorization (PA) is the plan's requirement that you get approval before receiving certain services. This is one of the most overlooked comparison dimensions, and it directly affects how quickly you can access care. In 2026, CMS data shows that MA plans issue prior authorization requirements on an average of 14% of service requests, with denial rates varying from 2% to 13% depending on the carrier.

Services that commonly require prior authorization in Medicare Advantage plans:

• Inpatient hospital admissions (non-emergency)

• Outpatient surgeries and procedures

• Advanced imaging (MRI, CT, PET scans)

• Specialist referrals (HMO plans)

• Skilled nursing facility stays beyond initial days

• Durable medical equipment (wheelchairs, CPAP, oxygen)

• Home health services

• Certain injectable or infused medications

To compare prior authorization burden, look at the plan's Evidence of Coverage (EOC) document, Section 3. Plans with fewer PA requirements give you faster access to care. If you have chronic conditions requiring regular specialist visits, imaging, or procedures, a plan with heavy PA requirements can create delays and administrative frustration.

7. Total Annual Cost (Not Just Premium)

The monthly premium is the least useful number for comparing Medicare Advantage plans. Your real cost is: Premium + Part B premium ($202.90/month in 2026) + deductibles + copays/coinsurance for services you actually use + drug costs. Two plans with the same $0 premium can differ by thousands of dollars in total annual cost depending on your health usage.

Medicare.gov's Plan Finder has an estimated annual cost calculator that factors in your specific medications, doctors, and expected healthcare usage. Use it. It is the single most useful comparison tool available and it is free.

Your Plan Comparison Worksheet

Use this worksheet to compare up to 3 plans side by side. Fill in the details for each plan you are considering, then compare across all 7 dimensions:

After filling this out, the right plan usually becomes obvious. The plan that covers your providers, has a manageable MOOP, covers your drugs affordably, and carries a strong star rating is almost always the best choice, regardless of what the premium says.

Common Comparison Mistakes

• Choosing based on premium alone. A $0 premium plan with an $8,850 MOOP and narrow network can cost you far more than a $50/month plan with a $3,500 MOOP and your doctors in-network.

• Ignoring star ratings. A 2.5-star plan is below average for a reason: higher denial rates, worse customer service, and fewer bonus-funded benefits.

• Not checking the formulary. Your $300/month medication might be Tier 2 on one plan and Tier 5 on another. The difference could be $2,000+/year.

• Assuming all extras are equal. A '$3,000 dental allowance' might only cover in-network dentists using plan-contracted rates, which limits your actual choices.

• Forgetting prior authorization. If you need regular MRIs or specialist procedures, a plan with heavy PA requirements can delay your care by weeks.

• Not rechecking annually. Plans change networks, formularies, benefits, and costs every January 1. Last year's best plan may not be this year's best plan.

When to Compare Plans

The primary window to compare and switch Medicare Advantage plans is the Annual Enrollment Period (AEP), which runs from October 15 through December 7 each year. Changes take effect January 1. You should also compare plans during:

• Medicare Advantage Open Enrollment Period (January 1 to March 31): If you already have an MA plan, you can make one switch to a different MA plan or drop back to Original Medicare.

• Special Enrollment Periods: Triggered by qualifying events like moving to a new service area, losing employer coverage, or qualifying for Medicaid.

• Initial Enrollment Period: When you first become eligible for Medicare (typically around your 65th birthday).

For a complete guide to Medicare Advantage vs. Medicare Supplement (Medigap), including when each path makes more sense, see our detailed comparison. If you are considering switching from Medicare Advantage to Medigap, read our switching guide to understand the underwriting implications.

💡 Eddie's Pro Tip

If you are approaching 65 and recently divorced after a long marriage, request your Social Security earnings statement and your former spouse's benefit information from the SSA before making any Medicare enrollment decisions. This single step clarifies whether your own work record qualifies you for premium-free Part A or whether you need to claim through your ex-spouse's record - and it prevents you from accidentally delaying enrollment and triggering a lifetime penalty.

Frequently Asked Questions