What Is the Difference Between an HMO and a PPO?
In plain English
An HMO (Health Maintenance Organization) requires you to use in-network providers and get referrals from a primary care physician for specialist visits. A PPO (Preferred Provider Organization) allows you to see any provider without referrals, including out-of-network, usually at a higher cost. HMOs have lower premiums; PPOs offer greater flexibility.
How Does an HMO Plan Work?
With an HMO, you choose a primary care physician (PCP) who coordinates all your care. To see a specialist, you typically need a referral. Coverage is generally limited to in-network providers except in emergencies. HMOs tend to have lower premiums and out-of-pocket costs, making them a good choice if you prefer structured, coordinated care and want predictable expenses.
How Does a PPO Plan Work?
A PPO gives you the freedom to visit any provider — in-network or out-of-network — without a referral. In-network care is less expensive, but out-of-network visits are still partially covered. PPOs are ideal if you have existing specialist relationships, travel frequently, or live in an area with limited in-network options. The trade-off is higher premiums and more complex cost-sharing.
Which Plan Type Is Right for You?
Those who prioritize lower premiums, don't mind having a PCP, and primarily see in-network providers may find an HMO suitable. Those who value flexibility, see specialists regularly, or want the option to go out-of-network without losing all coverage often prefer a PPO. Also consider EPOs (Exclusive Provider Organizations) and POS plans as middle-ground options depending on your regional market.
Frequently asked questions
Can I see a specialist without a referral on an HMO?
Generally no. HMOs require referrals from your primary care physician to see specialists, except in emergencies. Some HMOs offer a point-of-service option that allows limited out-of-network or self-referral access at a higher cost.
Are PPOs always more expensive than HMOs?
PPOs typically have higher monthly premiums than HMOs. However, if you rarely use healthcare and stay in-network, a PPO's higher premium may not be worth the added flexibility. Compare total expected costs — premiums plus anticipated out-of-pocket spending — to find a suitable balance.
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Related terms
Insurance Premium
An insurance premium is the regular payment you make to keep your insurance policy active. It is typically billed monthly, quarterly, or annually.
Insurance Deductible
A deductible is the amount you pay out of pocket before your insurance starts covering costs. Choosing a higher deductible typically lowers your monthly premium.
Copay
A copay is a fixed dollar amount you pay for a specific healthcare service, like a doctor visit or prescription. Copays are due at the time of service, separate from your deductible.
Out-of-Pocket Maximum
The out-of-pocket maximum is the most you will pay for covered healthcare in a plan year before your insurance covers 100% of costs. It includes deductibles, copays, and coinsurance.
Health Insurance Marketplace
The Health Insurance Marketplace, also called the Exchange, is where individuals and families can shop for ACA-compliant health insurance plans and apply for premium subsidies. Open enrollment runs annually each fall.