Medicare Guide

Types of Medicare Advantage Plans

Medicare Advantage is not one plan design. The letters after the plan name can change how the plan behaves when you choose doctors, see specialists, leave the network, fill prescriptions, travel, or need authorization for care. Before comparing benefits, it helps to understand what kind of Advantage plan you are looking at.

Reviewed by Calvin Bagley, Licensed Insurance Agent since 2011 · Published May 15, 2026 · Last updated August 14, 2026

Quick answer

The most common Medicare Advantage plan types are HMO, PPO, PFFS, SNP, and MSA.

HMO and PPO plans revolve around provider networks. PFFS plans use plan payment terms. SNPs serve people who meet specific health, Medicaid, or institutional criteria. MSA plans combine a high-deductible Medicare Advantage plan with a medical savings account. The plan type tells you where to look for the rules; it does not tell you whether the specific plan fits.

Key takeaways

Medicare Advantage plan type can change provider access, referrals, drug coverage, and out-of-network rules.
HMO plans usually focus on in-network care and may require referrals.
PPO plans usually offer more out-of-network flexibility, but out-of-network care can cost more.
Special Needs Plans serve people who meet specific eligibility requirements and must include Part D drug coverage.
MSA plans do not include Part D; if you want drug coverage with an MSA, you need a separate drug plan.

Advantage plan types

The plan design changes the rules of the road

The plan type affects networks, referrals, drug coverage, out-of-network access, and how providers agree to payment. Always check the exact plan documents because two plans with the same type can still behave differently.

HMO

Network-focusedOften requires in-network providers except emergencies or urgent care; referral rules can apply.

PPO

More flexibleUsually allows out-of-network care, but costs can be higher outside the preferred network.

SNP

Specific needsDesigned for people who meet certain chronic condition, institutional, or dual-eligible criteria.

PFFS/MSA

Less commonThese plan types have distinct payment or savings-account structures and should be reviewed carefully.

HMO plans are usually the most network-focused

A Health Maintenance Organization plan usually asks members to use a network of doctors, hospitals, and other providers. Out-of-network care may not be covered except for emergencies, urgent care, or out-of-area dialysis. Some HMO plans require referrals for specialists. An HMO can work well when the network fits your doctors and hospitals, but it can feel restrictive when a key specialist or facility is outside the network.

PPO plans usually add flexibility at a price

A Preferred Provider Organization plan usually has a network but may allow out-of-network care. The tradeoff is that out-of-network care can cost more. PPO flexibility can be useful for people who travel, split time between places, or want broader provider access, but the provider directory, hospital access, prescriptions, prior authorization rules, and total cost still need to be checked.

PFFS plans depend on payment terms

Private Fee-for-Service plans decide how much the plan will pay providers and how much members pay when they receive care. Some PFFS plans have networks, and some do not. The important question is whether a provider accepts the plan's payment terms and agrees to treat you. That should be confirmed before receiving care, not after a bill arrives.

Special Needs Plans are built for specific eligibility groups

Special Needs Plans, or SNPs, are Medicare Advantage plans for people who meet specific eligibility criteria. Examples include people who have both Medicare and Medicaid, people with certain chronic conditions, or people who live in institutions. Medicare.gov says all SNPs must include Medicare drug coverage. SNPs can be valuable when the care model matches the person's needs, but eligibility and provider fit should be confirmed carefully.

MSA plans are not built like ordinary HMO or PPO plans

Medicare Medical Savings Account plans combine a high-deductible Medicare Advantage plan with a medical savings account. MSA plans generally do not have a separate monthly plan premium, but you still pay the Part B premium. They do not include Part D drug coverage, so someone who wants drug coverage needs a separate Part D plan. The deductible, deposit, covered services, and provider rules should be reviewed carefully.

Drug coverage rules change by plan type

Drug coverage is not handled the same way across every plan type. HMO and PPO plans usually offer drug coverage, and if you want drug coverage you generally need to choose an HMO or PPO that includes it rather than adding a separate drug plan. PFFS plans may or may not include drug coverage; if the PFFS plan does not, a separate Part D plan may be allowed. SNPs must include Part D. MSA plans require a separate Part D plan if you want drug coverage.

Referrals and authorization are not the same thing

A referral is permission or direction from a primary doctor to see a specialist. Prior authorization is plan approval before certain services or supplies are covered. Medicare.gov notes that Medicare Advantage plans typically require prior authorization for certain services or supplies. A plan may have one, both, or neither for a particular service. That difference matters when care is time-sensitive.

The same plan type can still be very different

Two PPO plans can have different networks, copays, pharmacies, formularies, dental benefits, maximum out-of-pocket limits, and authorization rules. Two HMOs can feel completely different if one includes your doctors and another does not. The plan type is a sorting tool, not the final answer.

How to compare plan types

Start with the plan type, then move quickly into the specific details: doctors, hospitals, prescriptions, pharmacy access, travel, referrals, prior authorization, premium, expected copays, and maximum out-of-pocket limit. The right plan type is the one whose rules still feel workable when you actually need care.

Coverage paths

The two big Medicare paths people usually compare

The right answer is not the same for everyone. The better question is which path fits the way you use care.

Network-first choices

HMO and PPO plans are the most familiar Medicare Advantage designs for many shoppers. The core question is whether the local provider network and out-of-network rules fit your life.

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Need-based plan designs

SNPs are built for specific groups, such as people with both Medicare and Medicaid, certain chronic conditions, or institutional care needs. Eligibility and coordination matter more than the headline benefit.

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Less-common structures

PFFS and MSA plans can work very differently from typical HMO or PPO plans. The provider payment terms, deductible, account deposit, and drug coverage rules need extra attention.

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Go deeper

Related Medicare guides

Use this page as your Medicare starting point, then jump into the specific topic that matches your situation.

Common questions

Questions people usually ask next

These answers are a starting point. Medicare details can change based on timing, other coverage, and where you live.

Is a PPO always better than an HMO?

No. PPO plans can offer more flexibility, but they may also have different costs or plan rules. The better plan is the one that fits your doctors, prescriptions, hospitals, travel, and budget.

Do all Medicare Advantage plans include Part D?

No. Many do, but not all. Special Needs Plans must include Part D drug coverage. MSA plans do not include Part D, so a separate drug plan is needed if you want drug coverage with an MSA.

Can two plans with the same type work differently?

Yes. Two PPO or HMO plans can have different networks, costs, benefits, drug coverage, and authorization rules.

Can I go out of network with a Medicare Advantage HMO?

Usually only in limited situations such as emergencies, urgent care, or out-of-area dialysis, though some HMO point-of-service plans may allow certain out-of-network services at a higher cost.

What is the main difference between PFFS and PPO?

A PPO uses a provider network and usually allows out-of-network care at a higher cost. A PFFS plan depends on whether the provider accepts the plan's payment terms and agrees to treat you.

Are SNPs only for people with Medicaid?

No. Dual-eligible SNPs are for people with Medicare and Medicaid, but other SNPs can serve people with certain chronic conditions or people who live in institutions.

Official references

Sources checked for this guide

These guides are written in plain English, but the 2026 cost figures and coverage rules should stay tied to official Medicare and CMS source material.

Medicare.gov: Compare types of Medicare Advantage Plans Medicare.gov: Medicare Advantage options Medicare.gov: Your coverage options Medicare.gov: Joining a health or drug plan Medicare.gov: Part D drug coverage Medicare.gov: Special Enrollment Periods

About the reviewer

Calvin Bagley · Licensed Insurance Agent since 2011 · Nevada license #820948

Calvin Bagley is the founder and president of The Medicare Store and has been a licensed insurance agent since 2011 (Nevada license #820948). He built The Medicare Store around free, unhurried Medicare guidance from local agents, and still works with clients and agents across every Medicare Store market.

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