Medicare Advantage HMO vs. PPO
The letters matter less than what the network rules mean for your actual doctors, hospitals and travel.
The short version
HMO
Usually emphasizes in-network care, often has stricter network rules, and may require referrals for specialists depending on the plan.
PPO
Usually provides more flexibility to receive covered care out of network, but you may pay more when you do.
Network flexibility is not the same as network irrelevance
A PPO can be useful for someone who values out-of-network flexibility, but that does not mean every provider will accept the plan or that out-of-network care costs the same. An HMO can work very well when the member’s preferred doctors and hospitals are firmly inside the network.
Prior authorization can exist in either structure
Medicare notes that people in Medicare Advantage typically need prior authorization for certain services or supplies. HMO versus PPO does not remove the need to review the specific plan’s authorization rules.
The practical comparison
- Are all important doctors and hospitals in-network?
- What happens if you need care while traveling?
- Do you routinely use specialists?
- What is the in-network maximum out-of-pocket?
- Does the PPO have a separate out-of-network limit or combined limit?
- Are your prescriptions covered the same way?
Frequently asked questions
Does an HMO always require referrals?
Many HMOs require referrals for specialists, but plan rules vary. Check the specific plan.
Can a PPO go out of network?
PPOs generally allow out-of-network covered care, usually at a higher cost, subject to plan rules.
Which is better, HMO or PPO?
Neither is universally better. The better fit depends on your providers, travel, willingness to stay in-network and the plan’s costs.
Primary sources
This guide is based on current information from Medicare.gov and CMS. Rules can change, so verify time-sensitive details before acting.