HMO vs. PPO vs. EPO: Which Health Plan Type Is Right for You?

HMO, PPO, EPO, HDHP — the alphabet soup of health plan types is confusing. Here's what each one actually means for how you get care and what you pay.

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When choosing a health plan — during open enrollment, after a job change, or on the marketplace — you'll encounter acronyms that aren't well explained anywhere: HMO, PPO, EPO, POS, HDHP. Each describes a different set of rules about where you can get care and how much it costs.

HMO — Health Maintenance Organization

An HMO requires you to choose a primary care physician (PCP) who coordinates all your care. To see a specialist, you generally need a referral from your PCP. You must use providers within the HMO's network — out-of-network care is typically not covered at all, except in emergencies.

Best for: People who want lower premiums and predictable costs, don't mind having a PCP coordinate care, and primarily use providers in one geographic area.

Watch out for: The referral requirement adds a step to seeing specialists. If you travel frequently, an HMO's limited network can be restrictive.

PPO — Preferred Provider Organization

A PPO gives you more flexibility. You can see any doctor — in-network or out-of-network — without a referral. In-network care costs less, but out-of-network care is still partially covered.

Best for: People who want maximum flexibility, have existing specialist relationships they want to keep, or travel frequently.

Watch out for: PPO premiums are typically higher than HMOs. Out-of-network care, while covered, often comes with significantly higher out-of-pocket costs.

EPO — Exclusive Provider Organization

An EPO is a hybrid: like a PPO, you don't need referrals to see specialists. But like an HMO, you must stay within the network — out-of-network care is not covered except in emergencies.

Best for: People who want the freedom of no referrals but are willing to stay in-network in exchange for lower premiums than a PPO.

POS — Point of Service

A POS plan combines elements of HMO and PPO. You have a PCP and need referrals, but you can also go out-of-network at higher cost.

HDHP — High Deductible Health Plan

An HDHP has a higher deductible than traditional plans. In 2025, the IRS defines an HDHP as any plan with a deductible of at least $1,650 for individuals or $3,300 for families. The tradeoff is lower monthly premiums. HDHPs are often paired with a Health Savings Account (HSA), which lets you set aside pre-tax dollars for medical expenses.

Best for: Healthy individuals who rarely use medical care and want to save on premiums, especially those who want to take advantage of an HSA.

How to choose

  1. How often do I use medical care? Frequent users often benefit from lower-deductible plans despite higher premiums.
  2. Do I have doctors I want to keep? Check that they're in-network before choosing any plan.
  3. Do referrals bother me? If you see specialists regularly, a PPO or EPO avoids that friction.
  4. Can I handle a large unexpected bill? If not, a lower-deductible plan offers more protection.
  5. Do I want an HSA? You can only contribute to an HSA if you're enrolled in an HDHP.

Sources: Healthcare.gov Glossary, IRS Publication 969 — HSAs and HDHPs