A PPO (Preferred Provider Organization) gives you the freedom to see doctors both inside and outside its network, while an EPO (Exclusive Provider Organization) covers only in-network care, with exceptions for emergencies. The core tradeoff is flexibility versus cost: PPOs charge higher premiums for that out-of-network safety net, and EPOs save you money by keeping care within a defined group of providers. Both plan types let you see specialists without referrals, which sets them apart from HMOs.
How Out-of-Network Coverage Differs
This is the single biggest difference between the two plan types. With a PPO, out-of-network care is built into the benefit structure. You’ll pay more for it, typically through a higher coinsurance rate and a separate, larger deductible, but the plan still picks up a portion of the bill. That matters if you want to keep seeing a specific doctor who isn’t in your plan’s network, or if you need care while traveling.
An EPO draws a hard line. If you see a provider outside the network, you pay the full cost yourself. There’s no reduced reimbursement rate, no separate deductible tier. It’s simply not covered. The one exception is emergency care. Federal rules under the No Surprises Act prevent facilities and providers from billing you more than your in-network cost-sharing amounts for emergency services, regardless of whether the provider is in your network. So if you’re taken to an out-of-network ER on an EPO plan, you’re protected from surprise bills. But a routine visit to an out-of-network orthopedist or dermatologist? That’s entirely on you.
Network Size and Provider Access
PPO networks tend to be larger. An analysis of provider network data by KFF found that the average PPO enrollee had access to 53% of physicians in their area, compared to 38% for EPO enrollees and 37% for HMO enrollees. That gap can matter in areas with fewer providers or if you need a subspecialist for a rare condition.
EPO networks aren’t necessarily small, though. Many major insurers build EPO networks that cover the same hospitals and primary care offices you’d find in their PPO products. The difference is that the EPO network has firmer boundaries. Before enrolling in any plan, it’s worth searching the insurer’s provider directory for the specific doctors, specialists, and hospitals you use. A large network means nothing if your preferred providers aren’t in it.
Referrals and Specialist Access
Neither PPOs nor EPOs typically require you to choose a primary care physician or get a referral before seeing a specialist. This is one of the main reasons people prefer both plan types over traditional HMOs, which usually require a PCP to act as a gatekeeper for specialist visits. On a PPO or EPO, you can book directly with a cardiologist, dermatologist, or physical therapist without an extra step. Having a primary care doctor to coordinate your overall care is still a good idea, but it’s your choice rather than a plan requirement.
Cost Differences
PPOs generally carry higher monthly premiums than EPOs. You’re paying for the option to go out of network, whether or not you ever use it. EPOs cost less precisely because the insurer knows all your care will flow through contracted providers, which gives them more predictable costs and stronger negotiating leverage with those providers.
Beyond premiums, the cost picture has a few layers. With a PPO, your in-network deductibles and copays look similar to what you’d see on an EPO. But the plan also has a separate set of out-of-network cost-sharing amounts that are significantly higher. You might pay 20% coinsurance in network and 40% out of network, for example, plus a larger deductible. With an EPO, there’s only one cost-sharing structure because there’s only one network tier.
If you rarely go outside your insurer’s network, the extra premium you pay for a PPO may not be worth it. But if you live near a state border, travel frequently, or see specialists who don’t participate in narrower networks, the PPO premium functions like insurance against large out-of-pocket bills.
How Common Each Plan Type Is
PPOs dominate employer-sponsored insurance, where roughly 40% of small group market plans are PPOs. But in the individual marketplace (plans you buy on Healthcare.gov or your state exchange), PPOs are uncommon. Only about 14% of marketplace plans in 2025 are PPOs, a number that has barely changed in recent years. EPOs and HMOs make up the bulk of individual market offerings. Off-exchange individual plans show a slight uptick in PPO availability, rising from 19% in 2023 to 23% in 2025, but the individual market still leans heavily toward network-restricted plan types.
This means your actual choice between a PPO and an EPO depends on where you’re getting coverage. If your employer offers both, you have a real decision to make. If you’re shopping on the marketplace, you may not find a PPO option at all.
Which Plan Type Fits Better
An EPO makes sense if you’re comfortable staying within a single network, your preferred doctors and hospitals are already in that network, and you want to keep premiums lower. It’s a particularly strong fit if you live in an area with good provider density and don’t anticipate needing care in other regions.
A PPO makes sense if you want a safety net for out-of-network situations. That includes people who see specialists at academic medical centers that may not join every network, people with homes in two states, or anyone who values the flexibility to switch providers without worrying about network status. You’ll pay more each month for that flexibility, but you avoid the risk of an uncovered bill if you need care outside the network.
Both plans share the same advantage over HMOs: direct access to specialists without referrals. So the decision between a PPO and an EPO really comes down to one question. How much is out-of-network coverage worth to you, given the providers you actually use and the places you actually live and travel?