Choosing coverage
Medicare Advantage plan types: HMO, PPO, PFFS and Special Needs Plans
What each kind of Medicare Advantage plan means for your doctors, referrals and costs.
Checked against official sources on October 27, 2026 · How we check facts
Medicare Advantage plans all cover what Original Medicare covers, but they work differently depending on the type. The type tells you most of what you need to know about doctors and referrals.
HMO (Health Maintenance Organization)
- You generally must use doctors and hospitals in the plan's network, except in emergencies and for urgent care while traveling.
- You usually choose a primary care doctor and need referrals to see specialists.
- Often the lowest premiums. Some HMOs have a point-of-service (HMO-POS) option that lets you go out of network for some services, at a higher cost.
PPO (Preferred Provider Organization)
- You can see doctors outside the network, but you pay more when you do.
- You usually don't need referrals for specialists.
- Premiums are often higher than HMOs in exchange for that flexibility.
PFFS (Private Fee-for-Service)
The plan sets how much it pays doctors and hospitals. You can see any provider who accepts the plan's terms, but providers can decide visit by visit whether to accept, so call ahead. Some PFFS plans have networks.
Special Needs Plans (SNPs)
Plans limited to people who fit a group, with benefits and doctors chosen for them:
- D-SNP: for people with both Medicare and Medicaid.
- C-SNP: for people with certain chronic conditions, like diabetes or heart failure.
- I-SNP: for people who live in a nursing home or need that level of care at home.
Who qualifies for each and when you can join: Special Needs Plans explained.
MSA (Medical Savings Account)
A high-deductible plan where Medicare deposits money into a savings account you use for care. MSA plans don't include drug coverage, so you'd add a separate Part D plan.
What to check in any plan
- Are your doctors, hospitals and pharmacy in the network?
- The yearly out-of-pocket maximum, and copays for the care you use most.
- Whether your prescriptions are on the plan's drug list.
- Which services need prior approval.
Common questions
What's the difference between an HMO and a PPO?
An HMO generally requires you to use its network and get referrals for specialists. A PPO lets you see doctors outside the network for a higher cost, usually without referrals.
Who can join a D-SNP?
People who have both Medicare and Medicaid. D-SNPs coordinate the two programs' benefits.
Do all Medicare Advantage plans include drug coverage?
Most do. Medical Savings Account (MSA) plans don't, and some PFFS plans don't, so you'd add a separate Part D plan.
Sources
General information, not advice about a specific plan.