A Preferred Provider Organization (PPO) is a type of health insurance plan that gives you flexibility to see almost any doctor or specialist — without needing a referral first. You pay less when you use providers in the plan's network, but you can still get coverage for out-of-network care at a higher cost share.
PPOs are the most flexible plan type on the Marketplace, which is why their premiums tend to run higher than HMOs or EPOs. If you have an existing specialist you want to keep, or if you travel frequently and need coverage away from home, a PPO's out-of-network coverage is a real advantage.
Compares the four main ACA Marketplace plan types — PPO (Preferred Provider Organization), HMO (Health Maintenance Organization), EPO (Exclusive Provider Organization), and POS (Point-of-Service) — across referral requirements, out-of-network coverage availability, and relative premium cost.
Plan Type
Referral required?
Out-of-network coverage?
Relative premium
PPO
No
Yes (higher cost share)
Higher
HMO
In-network only
No (emergencies only)
Lower
EPO
No
No (emergencies only)
Moderate
POS
Sometimes
Yes (with referral)
Moderate
Premium ranges vary by carrier, location, and metal tier. All plan types cover emergency care regardless of network. Confirm network size and provider availability before choosing a plan.
When a PPO makes sense
You have doctors or specialists you want to keep seeing
You travel often and need coverage outside your home network
You're willing to pay a higher premium for maximum flexibility
When a PPO may not be worth it
Your preferred providers are all in-network on a less expensive plan type
Cost is the priority and you're comfortable with a smaller network
Frequently Asked Questions
Can I see a specialist without a referral on a PPO?
Yes. PPOs don't require referrals — you can book directly with any specialist in or out of network. This is one of the main reasons families with ongoing specialist care tend to prefer PPOs over HMOs or EPOs.
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