PPO vs. EPO Health Plans: How the Two Plan Types Differ

PPO and EPO are two types of managed care health plans sold through employers and on the Affordable Care Act marketplace. The letters stand for preferred provider organization and exclusive provider organization. People confuse the two because both use a network of doctors and hospitals, both charge a monthly premium, and both list copays and deductibles in plan documents. The difference that matters most is what happens when care comes from outside the network.

How a PPO works

A PPO has a network of doctors, hospitals, and other providers that agree to set rates with the plan. A member can see a provider outside that network, but the plan pays a smaller share of the bill and the member pays more. A PPO member generally does not need a referral from a primary care doctor to see a specialist, in network or out. That freedom is the main reason PPO premiums tend to run higher than premiums for plans with tighter networks.

Out-of-network care under a PPO still counts toward cost sharing in most cases, but the amounts differ from in-network care, and a provider outside the network can bill the patient for the balance in some situations. Emergency care is an exception: federal law protects patients from surprise bills for emergency services, even when the hospital is outside the network.

How an EPO works

An EPO also has a network, and the word exclusive describes the rule that follows from it. Care from a provider outside the network is generally not covered at all, except for emergency care. A member who wants the plan to pay must stay inside the network for routine visits, tests, and planned procedures.

Like a PPO, an EPO generally does not require a referral to see a specialist inside the network, although individual plans vary and members should read the plan documents. Because the plan pays only for in-network care, EPO premiums often sit below PPO premiums for similar coverage, though the gap varies by market, carrier, and plan design.

Side-by-side comparison

	PPO	EPO
What it is	A plan with a preferred network that still pays part of out-of-network care.	A plan with an exclusive network that generally pays only for in-network care.
Who can get it	Anyone offered the plan by an employer or eligible to buy it on the marketplace; no special health condition is required.	Anyone offered the plan by an employer or eligible to buy it on the marketplace; no special health condition is required.
Costs	Monthly premiums tend to be higher; out-of-network care costs the member more than in-network care.	Monthly premiums often run lower than a comparable PPO; out-of-network non-emergency care is generally paid in full by the member.
Pros	Freedom to see out-of-network providers, no referral needed for specialists, and a better fit for people who travel or split time between places.	Lower premiums than a comparable PPO, no referral needed for in-network specialists, and a simpler rule: stay in network and the plan pays.
Cons	Higher premiums and higher cost sharing for out-of-network care, plus possible balance bills from out-of-network providers.	No coverage for planned out-of-network care, so a doctor who leaves the network or a trip that needs care can leave the member with the full bill.

Premiums, deductibles, copays, and out-of-pocket limits change from plan to plan and from year to year. Two plans with the same letters can differ in network size, drug coverage, and cost sharing, so the plan documents and the Summary of Benefits and Coverage are the final word for any specific plan.

Verdict: which plan fits which case

Choose a PPO if you have doctors you want to keep who sit outside the plan network, if you travel often or live in two places during the year, or if you want to see specialists without checking network lists first. The higher premium buys room to go outside the network when care cannot wait for an in-network opening.

Choose an EPO if your doctors and your nearest hospital are already in the network, if you rarely need care away from home, and if a lower monthly premium matters more to your budget than out-of-network access. The plan works well for people who can check the network before each appointment and stay inside it.

Before either choice, check that each doctor you see regularly and the hospital you would use are in the network for the plan year, and confirm how the plan treats referrals, prior authorization, and emergency care. A plan that looks cheaper on premium alone can cost more if its network does not include the care you actually use.

Explainer based on plan-type descriptions published by HealthCare.gov and state insurance regulators.