PPO stands for preferred provider organization. It is the most common network design in American employer coverage, and the only one of the four common types that routinely pays something toward a provider it has no contract with.
That second half is what people are buying, and it is also the half almost nobody understands until a bill arrives. This page explains what a PPO is, how its two sets of prices work, what it costs in 2026 dollars, and when it is the wrong purchase. If you are choosing between network types rather than trying to understand one, HMO vs PPO makes that comparison directly. Figures here are from KFF’s 2025 Employer Health Benefits Survey, the most recent edition as of September 2026, plus HealthCare.gov, CMS and the federal regulations.
What Is a PPO Plan?
HealthCare.gov defines a PPO as “a type of health plan that contracts with medical providers, such as hospitals and doctors, to create a network of participating providers. You pay less if you use providers that belong to the plan’s network. You can use doctors, hospitals, and providers outside of the network for an additional cost.”
Two features follow from that definition and they are the whole product.
No referral requirement. CMS’s consumer materials and KFF’s survey definition both state that a PPO lets you see specialists without going through a primary care gatekeeper. That is the line that separates a PPO from a POS plan, which also pays out of network but requires the referral. See POS plan vs PPO for that comparison.
Out-of-network coverage exists. An EPO or an HMO generally covers nothing outside the network except emergencies. A PPO covers something. How much is the rest of this page.
One thing a PPO is not: a statement about your deductible. PPO describes the network. High deductible health plan is an IRS tax category, and a single plan can be both at once. HDHP vs PPO covers why that comparison is a category error.
How PPO Insurance Works: Two Sets of Prices
A PPO runs two entirely separate pricing systems, and the gap between them is where the money is.
In network, you pay a share of a negotiated rate. The plan and the provider agreed on a price in advance. Your deductible, copay or coinsurance applies to that agreed price, and the provider cannot bill you above it. HealthCare.gov’s glossary is blunt about this: “A preferred provider may not balance bill you for covered services.”
In practice PPO in-network cost sharing is copay-heavy for office visits and coinsurance-heavy for facilities. KFF found 85% of PPO enrollees pay a copay for a primary care visit, averaging $27, and $45 for a specialist. But 70% face coinsurance for a hospital admission and 72% for outpatient surgery, and across all plan types the average coinsurance rate on both is 20%. A percentage of a hospital bill is not a knowable number in advance, which is the practical distinction copay vs coinsurance explains.
Out of network, you pay a share of an allowed amount, plus whatever is left. The plan does not pay a percentage of the bill. It pays a percentage of what HealthCare.gov calls the allowed amount, “the maximum amount a plan will pay for a covered health care service.”
Where does that allowed amount come from? FAIR Health, the nonprofit that maintains the claims database many insurers use, says most plans set out-of-network payment as a percentage of “usual, customary and reasonable” charges for the area, while others use a percentage of the Medicare fee schedule, and Medicare’s rates are usually lower than commercial payments. Plans make their own decisions about what is usual and customary. Two PPOs with identical 40% out-of-network coinsurance can therefore produce very different bills.
Then comes the part that surprises people. If the provider charged more than the allowed amount, the provider may bill you the difference. HealthCare.gov’s worked example: a $100 charge against a $70 allowed amount leaves $30 the provider may bill you directly. On a five-figure surgery, that gap is not $30.
The Three Numbers That Make Out-of-Network Expensive
A PPO’s out-of-network tier is not simply “the same coverage at a worse rate.” Three separate mechanisms stack.
A separate, higher out-of-network deductible. Most PPOs run two deductibles, and the out-of-network one is typically a multiple of the in-network one. KFF measures only in-network deductibles, so the published averages ($1,337 average single deductible among PPO enrollees who face one) describe the in-network tier only. Your plan documents carry the other number.
Higher coinsurance. HealthCare.gov’s glossary gives 40% as its illustrative out-of-network coinsurance rate, against the roughly 20% PPO enrollees average in network.
An out-of-pocket maximum that may not apply. This is the important one. Under 45 CFR 156.130(c), the special rule for network plans, “cost sharing paid by, or on behalf of, an enrollee for benefits provided outside of such network is not required to count toward the annual limitation on cost sharing.” HealthCare.gov says the same thing in plain English: the out-of-pocket limit does not include out-of-network care and services, or costs above the allowed amount.
So the Marketplace out-of-pocket limits (no more than $10,600 for an individual or $21,200 for a family in 2026, rising to $12,000 and $24,000 in 2027) may cap your in-network year while your out-of-network exposure runs uncapped. That is the single most expensive misunderstanding about PPOs, and out-of-pocket maximum covers the rule in more depth.
The exceptions are worth knowing. Under the No Surprises Act, you are protected from out-of-network balance billing for emergency care, for air ambulance services, and for non-emergency care from out-of-network providers at an in-network hospital, hospital outpatient department or ambulatory surgical center. No Surprises Act covers what that does and does not reach.
What a PPO Actually Costs
| 2025 PPO averages (KFF EHBS) | Single coverage | Family coverage |
|---|---|---|
| Total annual premium | $9,818 | $28,272 |
| Worker contribution | $1,514 | $7,075 |
| Employer contribution | $8,303 | $21,197 |
| Average deductible (in network, if you face one) | $1,337 | $3,118 aggregate, $1,361 per person |
| Share with no general annual deductible | 12% | 12% |
A few notes on reading that table. The PPO premium was the highest of any plan family KFF measures, running $493 above the all-plan average for single coverage and $1,279 above it for family coverage. KFF also groups conventional indemnity plans in with PPOs and pulls any plan attached to a health savings account out into a separate HDHP/SO category, so this is a non-HDHP PPO row rather than a pure measurement of the network design.
Family PPO deductibles come in two shapes. KFF found 58% of PPO enrollees with family coverage have an aggregate deductible, where the whole household’s spending fills one bucket, and 30% have a separate per-person amount. The averages differ by more than double, so which shape your plan uses matters more than the headline number. Health insurance deductible covers the mechanics.
Who Should Buy a PPO, and Who Should Not
A PPO earns its premium if a specific provider is non-negotiable and might not be in every network, if you split time between regions, if you want specialist access without referral paperwork, or if you have a condition where a narrow network could genuinely run out of the specialists you need.
Skip the PPO if every doctor you use is already in a cheaper plan’s network, if you almost never see specialists, or if you would not actually use the out-of-network benefit once you saw what it pays. Paying a higher premium for optionality you never exercise is the most common way people overpay for coverage. The $493 single-coverage premium gap is small; the family gap of $1,279 is not.
Check before you assume the PPO is wider. Networks are plan-specific, not carrier-specific. A carrier’s PPO and its HMO can share most of a network in one metro area and diverge sharply in another. Search each specific plan’s directory for your own doctors, and confirm at the practice, since directories go stale. In-network vs out-of-network covers how to verify.
When the Cash Price Beats Your PPO’s Out-of-Network Benefit
This is the calculation almost nobody runs, and for a self-pay reader it is the point.
Suppose an out-of-network provider charges $3,000, your PPO’s allowed amount is $1,400, your out-of-network deductible is unmet, and coinsurance is 40%. You pay the allowed amount toward the deductible, plus your coinsurance share, plus the roughly $1,600 balance bill, and under the network-plan rule none of it has to count toward your out-of-pocket maximum. Meanwhile the same provider’s posted self-pay price might be $1,200, paid once, with no balance bill and no claim.
The cash price is not always lower. But it is always knowable in advance, and out-of-network reimbursement is not. Three habits make the comparison easy.
Ask for the self-pay or prompt-pay price before you book, and ask specifically whether it is available if you have insurance but do not file a claim. Many practices say yes.
Look up the facility’s published rates. Hospitals must post a discounted cash price alongside their negotiated rates, and hospital price transparency explains where to find them. On high-spread services the difference is dramatic, as MRI cost without insurance shows.
Negotiate anything that has already been billed. A balance bill from an out-of-network provider is a bill from a business, not a tax assessment, and how to negotiate medical bills covers the approach. If you are weighing whether to carry the coverage at all, self-pay vs health insurance runs that comparison honestly, including the catastrophic risk.
The Bottom Line
A PPO is a preferred provider organization: a network plan with no referral requirement that pays a reduced share for care outside its network. In 2025 that cost $9,818 a year for single coverage and $28,272 for family coverage, with workers contributing $1,514 and $7,075, the highest of any plan family KFF measures.
Buy it for the out-of-network option only if you have a concrete reason to expect using it. And read the out-of-network tier before you rely on it, because the allowed amount is set by your plan, the balance bill is set by the provider, and federal rules do not require either one to count toward the cap that makes the in-network side feel safe.