What Is a PPO Plan? How It Works and What It Costs

A PPO, or Preferred Provider Organization, is a type of health insurance plan that gives you access to a network of doctors and hospitals at discounted rates while still covering care outside that network at a higher cost. PPOs are the most common form of employer-sponsored coverage in the United States, with nearly half (47%) of covered workers enrolled in one as of 2023. Their popularity comes down to one thing: flexibility.

How a PPO Plan Works

A PPO plan contracts with a group of doctors, hospitals, and other providers to form a network. When you visit someone inside that network, you pay a lower share of the bill because the insurer and provider have pre-negotiated rates. You can also go outside the network and still receive partial coverage, but you’ll pay significantly more out of pocket.

Unlike an HMO (Health Maintenance Organization), a PPO generally does not require you to choose a primary care physician. You also don’t need a referral to see a specialist. If you want to book an appointment with a dermatologist, orthopedic surgeon, or any other specialist, you can call their office directly. This freedom to self-direct your care is the defining feature that separates PPOs from more restrictive plan types.

In-Network vs. Out-of-Network Costs

The cost difference between staying in-network and going out-of-network can be substantial. When you see an in-network provider, you typically pay a copay (a flat fee per visit) or coinsurance (a percentage of the bill). Coinsurance for in-network care commonly runs around 20%, meaning the plan covers 80%.

Out-of-network care flips that ratio. Your coinsurance share might jump to 30% or 40%, and many PPO plans apply a separate, higher deductible for out-of-network services. That means you could have a $500 in-network deductible but a $1,500 out-of-network deductible before the plan starts sharing costs at all.

There’s another cost that catches people off guard: balance billing. When you see an out-of-network provider, the insurer pays based on what it considers a reasonable “allowed amount” for the service. If the provider charges more than that allowed amount, they can bill you for the difference. So you could end up paying your deductible, your coinsurance percentage, and the gap between what the insurer approved and what the provider actually charged. Federal protections now prevent surprise balance billing in emergencies and certain other situations, but if you voluntarily choose an out-of-network provider and consent to their billing, you’re responsible for that extra cost.

What PPO Plans Cost

PPO plans carry higher monthly premiums than HMOs and most other plan types. You’re paying for the flexibility to see any provider without referrals and to receive partial coverage for out-of-network care. That freedom has a price tag. The premium gap varies by employer and region, but it’s common for a PPO to cost $50 to $150 more per month than a comparable HMO offered by the same employer.

Beyond premiums, PPO plans often come with higher deductibles and out-of-pocket maximums than HMOs. Before your plan starts covering a significant share of costs, you may need to meet a deductible of several hundred to several thousand dollars. Once you hit the plan’s annual out-of-pocket maximum, the insurer covers 100% of covered services for the rest of the year.

PPO vs. HMO vs. EPO

The three most common plan types differ mainly in how much freedom you have to choose providers:

  • PPO: No primary care physician required, no referrals needed, partial coverage for out-of-network care. Highest premiums.
  • HMO: Requires a primary care physician who coordinates your care and provides referrals to specialists. Little or no coverage outside the network. Lower premiums.
  • EPO (Exclusive Provider Organization): Like a PPO in that you don’t usually need referrals, but like an HMO in that it generally won’t cover out-of-network care at all except in emergencies.

An HMO works well if you’re comfortable with a gatekeeper model and want to keep costs low. An EPO splits the difference. A PPO makes the most sense when you want to see specialists directly, travel frequently, or already have providers you want to keep who may not be in a single network.

Who Benefits Most From a PPO

PPOs are especially valuable if you have an ongoing relationship with specific doctors and don’t want to risk losing access to them. They’re also a good fit if you live in a rural area where in-network options are limited, since you’ll still get partial coverage for out-of-network visits. People who see multiple specialists regularly often prefer PPOs because skipping the referral step saves time and hassle.

On the other hand, if you’re generally healthy, see a doctor once or twice a year, and don’t have strong provider preferences, you’re likely overpaying for flexibility you won’t use. An HMO or high-deductible plan paired with a health savings account could save you hundreds of dollars a year in premiums alone.

Managing Your Costs on a PPO

The single biggest way to control spending on a PPO is to stay in-network whenever possible. Before scheduling any appointment, procedure, or lab work, check your insurer’s online provider directory. Keep in mind that a hospital can be in-network while an individual doctor working inside that hospital is not, so verify each provider separately.

If you do go out of network, ask the provider’s office for a cost estimate beforehand. Request it in writing. Compare that estimate to your plan’s allowed amount (your insurer can usually tell you this over the phone) so you know roughly what your balance bill might look like. For planned procedures, this kind of homework can save you thousands of dollars. For emergency care, federal law now protects you from surprise out-of-network bills in most situations, so you don’t need to worry about checking networks in a crisis.

PPOs also commonly waive the deductible for preventive care like annual physicals, vaccinations, and screenings. These services are covered at 100% in-network under the Affordable Care Act, regardless of whether you’ve met your deductible. Taking advantage of preventive visits is one of the most cost-effective things you can do on any insurance plan.