Choosing Health Insurance can be confusing because there are several different types of plans, and each one can have different rules for doctors, hospitals, referrals, out-of-network care, and costs. You may come across terms such as HMO, PPO, EPO, POS, HDHP, and catastrophic health insurance when researching coverage. These names describe different ways health insurance plans can organize healthcare and provider networks. There is also another system you may see when comparing Marketplace plans: Bronze, Silver, Gold, and Platinum. These are metal categories that describe how you and the plan generally share healthcare costs. They are different from plan types such as HMO or PPO. Understanding this difference can make comparing health insurance much easier.
This guide explains the main types of health insurance plans in the United States, how they differ, and what to check before choosing coverage.
What Are the Main Types of Health Insurance Plans?
Health insurance plans can be structured in different ways. The most common plan types you may encounter include:
- Health Maintenance Organization (HMO)
- Preferred Provider Organization (PPO)
- Exclusive Provider Organization (EPO)
- Point of Service (POS)
- High Deductible Health Plan (HDHP)
- Catastrophic health insurance
Not every plan type is available to every person, and availability can depend on the insurer, location, employer, Marketplace, eligibility, and other factors. HealthCare.gov currently identifies HMO, PPO, EPO, and POS among the plan types consumers may find in the Health Insurance Marketplace.
HMO Health Insurance Plans
HMO stands for Health Maintenance Organization.
An HMO generally uses a defined network of doctors, hospitals, and other healthcare providers. Coverage is usually limited to care from providers in the HMO’s network, except in certain circumstances such as emergencies. HealthCare.gov explains that HMOs generally limit coverage to care from doctors who work for or contract with the HMO and generally do not cover out-of-network care except in an emergency.
How an HMO Works
When you have an HMO, you generally use healthcare providers within the plan’s network. Depending on the specific plan, you may also have a primary care provider who coordinates your healthcare and may need to provide a referral before you see certain specialists. Referral requirements can vary by plan, so it is important to check the specific plan documents.
Potential Features of an HMO
- Defined provider network
- Limited coverage for routine out-of-network care
- Focus on coordinated care
- Possible primary-care physician requirements
- Possible specialist referral requirements
What to Check Before Choosing an HMO
Before enrolling in an HMO, check whether your preferred doctors, hospitals, and other providers are included in the network. If you regularly see specialists, also check whether the plan requires referrals.
PPO Health Insurance Plans
PPO stands for Preferred Provider Organization.
A PPO creates a network of participating healthcare providers. You generally pay less when you use providers within that network, but you may also have coverage for out-of-network care at a higher cost. HealthCare.gov describes PPO plans as plans where you pay less when using providers in the network and can generally use providers outside the network for an additional cost.
How a PPO Works
You can generally choose healthcare providers from the plan’s network without being restricted to one particular doctor. Depending on the plan, you can also receive care from out-of-network providers, although your share of the cost may be higher.
Potential Features of a PPO
- Broad provider network
- In-network and out-of-network coverage may be available
- Usually more flexibility when choosing providers
- Specialist visits may not require a primary-care referral
- Out-of-network care can cost more
What to Check Before Choosing a PPO
Do not assume that every doctor or hospital accepts every PPO. Check the specific plan’s provider network and compare its deductible, copayments, coinsurance, and out-of-pocket maximum.
EPO Health Insurance Plans
EPO stands for Exclusive Provider Organization. An EPO is a managed-care plan that generally requires you to use healthcare providers within the plan’s network for covered services, except in certain situations such as emergencies. HealthCare.gov describes an EPO as a plan where services are generally covered only when you use doctors, specialists, or hospitals in the plan’s network, except in an emergency.
How an EPO Works
The main idea behind an EPO is a defined provider network. If your doctor or hospital is outside the network, the plan may not cover the service except where an exception applies. This makes checking the provider network particularly important before enrolling.
Potential Features of an EPO
- Defined provider network
- Limited routine out-of-network coverage
- May provide flexibility within the network
- Emergency care may be treated differently
- Network availability can vary by location
POS Health Insurance Plans
POS stands for Point of Service.
A POS plan combines features related to network care and out-of-network care. HealthCare.gov explains that POS plans generally cost less when you use providers in the plan’s network and require a referral from your primary care doctor to see a specialist.
How a POS Plan Works
With a POS plan, you generally pay less when using in-network providers. You may have the option to receive care outside the network, but the cost can be higher and additional requirements may apply. The referral requirement is another important feature to check.
What to Check Before Choosing a POS Plan
- Whether your primary doctor is in the network
- Whether referrals are required for specialists
- How out-of-network care is covered
- Deductible and coinsurance amounts
- Out-of-pocket maximum
HDHP Health Insurance Plans
HDHP stands for High Deductible Health Plan. An HDHP generally has a higher deductible than certain other health plans, although the specific deductible amount depends on the plan and applicable rules. Because the deductible can be higher, you may pay more out of pocket for certain healthcare services before the plan begins paying its share.
How an HDHP Works
The basic structure is similar to other health insurance. You pay your premium and then share the cost of covered healthcare according to the plan’s deductible and other cost-sharing requirements. The important difference is the plan’s higher-deductible structure.
HDHP and Health Savings Accounts
Some HDHPs are compatible with a Health Savings Account (HSA) when the applicable requirements are met. An HSA is a tax-advantaged account that can be used for qualified medical expenses. However, not every high-deductible plan automatically qualifies as an HSA-eligible plan. If an HSA is important to you, verify the plan’s eligibility rather than relying only on the words “high deductible.”
Catastrophic Health Insurance Plans
Catastrophic health insurance is designed primarily to protect against very high healthcare costs rather than provide the lowest possible cost whenever you receive routine care. Catastrophic plans generally have low monthly premiums and very high deductibles compared with many other Marketplace plans. Eligibility is also limited. Not everyone can enroll in a catastrophic plan.
Who May Be Eligible?
Eligibility rules can depend on age, hardship exemptions, and other circumstances. If you are considering a catastrophic plan, check the current Marketplace eligibility requirements before assuming that you qualify.
What Should You Consider?
A lower premium can look attractive, but a high deductible means you may have significant out-of-pocket costs when you need covered healthcare. Consider your expected healthcare use and ability to handle large medical expenses before choosing this type of coverage.
HMO vs. PPO vs. EPO vs. POS
These four plan types are often confused because they can all provide health insurance coverage while using different approaches to provider networks and healthcare access.
| Plan Type | Network Structure | Out-of-Network Care | Referral Considerations |
|---|---|---|---|
| HMO | Generally uses a defined network | Generally not covered except for certain situations such as emergencies | May require referrals depending on the plan |
| PPO | In-network providers generally cost less | May be covered at a higher cost | Generally offers more flexibility with specialists |
| EPO | Generally uses an exclusive network | Generally not covered except for certain situations such as emergencies | Depends on the plan |
| POS | In-network providers generally cost less | May be available at a higher cost | Referral from a primary-care doctor is generally required for specialists |
These are general descriptions. A specific plan can have its own rules, so always review the plan documents before enrolling. HealthCare.gov provides the current Marketplace descriptions of these plan types.
What Is the Difference Between Plan Type and Metal Level?
This is one of the most important distinctions to understand when shopping for Marketplace health insurance.
HMO, PPO, EPO, and POS describe the structure of the health plan, particularly how the plan handles providers and access to care.
Bronze, Silver, Gold, and Platinum are Marketplace metal categories that describe how you and the insurance plan generally split covered healthcare costs.
HealthCare.gov states that metal categories are about cost sharing and do not represent the quality of care.
Can a PPO Be Silver?
Yes. A Marketplace plan can have both a plan type and a metal category. For example, you may see a plan described as a Silver PPO or a Gold HMO. The first part describes the plan structure, while the metal category describes the cost-sharing category.
What Are Bronze, Silver, Gold, and Platinum Plans?
Marketplace plans are generally divided into four metal categories:
- Bronze
- Silver
- Gold
- Platinum
These categories are based on how the plan and consumer generally share healthcare costs. They do not tell you whether a plan provides better-quality doctors or medical treatment.
Bronze Plans
Bronze plans generally have lower premiums and higher costs when you receive covered care compared with higher metal levels.
Silver Plans
Silver plans sit between Bronze and Gold in the metal-level structure. Silver plans can also be particularly important for consumers who qualify for certain cost-sharing reductions when purchasing Marketplace coverage.
Gold Plans
Gold plans generally have higher premiums than Bronze plans but may have lower cost sharing when you receive covered healthcare.
Platinum Plans
Platinum plans generally have the highest premiums among the four standard metal categories and generally lower cost sharing for covered care. These descriptions are general. Actual premiums, deductibles, copayments, coinsurance, and benefits vary by plan and location.
How Provider Networks Affect Your Health Insurance
Your provider network can be just as important as the plan’s premium. A provider network may include:
- Primary-care doctors
- Specialists
- Hospitals
- Urgent-care centers
- Pharmacies
- Laboratories
- Other healthcare providers
Two plans from the same insurance company can have different networks. That means checking the insurance company’s name alone is not enough.
Check the Actual Plan Network
Before enrolling, search the plan’s provider directory and confirm that your preferred doctors and facilities are included. It is also useful to check whether the hospitals you would use for major medical care participate in the network.
Can Two Plans With the Same Metal Level Be Different?
Yes. Two Silver plans can have different:
- Premiums
- Deductibles
- Copayments
- Coinsurance
- Out-of-pocket maximums
- Provider networks
- Prescription drug coverage
- Prior authorization requirements
- Covered benefits and cost-sharing details
That is why choosing a plan based only on the metal category is not enough.
Can Two Plans With the Same Plan Type Be Different?
Yes. Two PPO plans can have completely different premiums, deductibles, provider networks, drug coverage, and cost-sharing rules. The same is true for HMOs, EPOs, and POS plans. The name of the plan type tells you something about its structure, but it does not tell you every detail of the policy.
How to Compare Different Health Insurance Plan Types
When comparing plans, start with the features that could have the biggest effect on your healthcare and budget.
1. Compare the Provider Network
Check whether your current doctors, preferred hospitals, and other important providers are in the network.
2. Compare the Monthly Premium
Calculate the annual premium by multiplying the monthly premium by the number of months in the coverage year.
3. Compare the Deductible
Look at how much you may have to pay for covered services before the plan begins paying its share.
4. Compare Copayments
Check the cost of routine doctor visits, specialist visits, urgent care, prescription drugs, and other services you may use.
5. Compare Coinsurance
Look at the percentage you may have to pay for covered services after applicable deductible requirements are met.
6. Compare the Out-of-Pocket Maximum
Consider the maximum amount you could be responsible for in qualifying covered expenses during the plan year.
7. Check Prescription Coverage
If you take regular medications, check whether they are covered and what your expected cost may be.
8. Check Referral Requirements
If you prefer to see specialists directly, check whether the plan requires referrals.
How Your Health Needs Can Affect Plan Selection
The plan structure that works for one person may not work the same way for someone else. Consider how often you normally use healthcare.
If You Rarely Use Healthcare
You may place more importance on the monthly premium and protection against major medical expenses. However, you should still consider the deductible and out-of-pocket maximum.
If You Visit Doctors Frequently
You may want to pay closer attention to office-visit copays, specialist costs, deductible requirements, and the provider network.
If You Take Regular Prescription Drugs
Prescription coverage can become an important part of the comparison. Check your medications against the plan’s formulary and cost-sharing rules.
If You Regularly See Specialists
Check whether referrals are required and whether your preferred specialists are in the plan’s network.
If You Have a Preferred Hospital
Confirm that the hospital participates in the specific plan you are considering.
Does a Lower Premium Mean a Better Health Insurance Plan?
Not necessarily. A lower premium can mean that you pay less every month, but the plan may have higher deductibles, copayments, coinsurance, or other costs when you receive healthcare. Likewise, a higher premium does not automatically mean that a plan will cost less overall. HealthCare.gov recommends considering estimated total yearly healthcare costs rather than looking only at the monthly premium.
Why You Should Compare Total Healthcare Costs
Suppose one plan costs $300 per month and another costs $450 per month. At first glance, the $300 plan appears cheaper. But imagine the first plan has a much higher deductible and higher cost sharing when you receive medical care, while the second plan has a higher premium but lower costs for certain services. If you expect frequent healthcare use, the difference in medical costs could change the overall comparison.
This is why it is useful to estimate both:
- Your annual premiums
- Your expected healthcare spending
HealthCare.gov’s Marketplace comparison tools allow consumers to estimate yearly costs based on expected levels of healthcare use.
What Should You Check Before Enrolling?
Before choosing a health insurance plan, make sure you understand the following:
- Plan type
- Monthly premium
- Annual deductible
- Copayments
- Coinsurance
- Out-of-pocket maximum
- Provider network
- Prescription drug coverage
- Referral requirements
- Prior authorization requirements
- Covered services
- Important exclusions and limitations
It is also useful to review the plan’s Summary of Benefits and Coverage before making a decision.
Where Can You Compare Marketplace Health Insurance Plans?
Consumers can preview available Marketplace plans and estimated prices through HealthCare.gov or the appropriate state-based Marketplace. HealthCare.gov currently provides tools for viewing 2026 Marketplace plans and estimated prices. For Marketplace coverage, the final price depends on the information provided during the application process and any financial assistance for which you qualify.
Common Mistakes When Choosing a Health Insurance Plan
Choosing Only by Premium
The monthly premium is only one part of your healthcare costs.
Ignoring the Network
A plan can have an attractive price but may not include your preferred doctors or hospitals.
Assuming All PPOs Are the Same
PPO plans can have very different networks, deductibles, premiums, and cost-sharing rules.
Assuming an HMO Never Covers Anything Outside the Network
General rules exist, but plans can have exceptions and emergency-care protections. Review the specific plan.
Confusing Metal Levels With Plan Types
Bronze, Silver, Gold, and Platinum are cost-sharing categories, while HMO, PPO, EPO, and POS describe plan structures.
Forgetting Prescription Coverage
If you take regular medication, failing to check the formulary can lead to unexpected costs.
Frequently Asked Questions About Health Insurance Plan Types
What are the four main types of health insurance plans?
Four commonly encountered plan types are HMO, PPO, EPO, and POS. Each has different rules concerning provider networks and access to healthcare.
What is an HMO plan?
An HMO, or Health Maintenance Organization, generally limits coverage to care from providers in its network, except in certain circumstances such as emergencies.
What is a PPO plan?
A PPO, or Preferred Provider Organization, generally gives you more flexibility to use in-network and out-of-network providers, although out-of-network care can cost more.
What is an EPO plan?
An EPO, or Exclusive Provider Organization, generally covers services only when you use providers in the plan’s network, except in certain situations such as emergencies.
What is a POS plan?
A POS, or Point of Service plan, generally costs less when you use in-network providers and generally requires a referral from your primary-care doctor to see a specialist.
Is PPO better than HMO?
HMO and PPO plans have different structures. The relevant differences include provider networks, out-of-network coverage, referrals, premiums, deductibles, and other costs. The right features depend on your healthcare needs and the specific plans available to you.
Is EPO the same as HMO?
No. Both generally emphasize in-network care, but their specific rules can differ. Review the individual plan’s provider network, referral requirements, and cost-sharing rules.
What is the difference between HMO and PPO?
HMO plans generally limit routine coverage to their network, while PPO plans generally allow out-of-network care at a higher cost. PPOs also generally provide more flexibility when choosing providers.
What does Bronze, Silver, Gold, or Platinum mean?
These are Marketplace metal categories that describe how consumers and health plans generally share covered healthcare costs. They do not represent the quality of medical care.
Can an HMO be a Silver plan?
Yes. A Marketplace plan can have both a plan type and a metal category. For example, a plan can be a Silver HMO.
Can a PPO be a Gold plan?
Yes. A Marketplace plan can be a Gold PPO, depending on the plans offered in your area.
Which health insurance plan has the largest provider network?
There is no universal answer because provider networks vary by insurer, plan, location, and year. Compare the actual provider directory for each plan you are considering.
How PolicyHelpUSA Can Help
Understanding the type of health insurance plan you have is an important first step toward understanding your coverage. At PolicyHelpUSA, we are building a complete Health Insurance resource that explains common insurance terms and plan structures in plain language. If you are starting from the beginning, read our guide on what health insurance is and our guide explaining how health insurance works.
Our upcoming guides will cover individual plan types in more detail, including HMO vs. PPO, deductibles, copayments, coinsurance, out-of-pocket maximums, Marketplace plans, and other important health insurance topics. Always review the actual plan documents and current official information before enrolling because plan availability, networks, costs, eligibility, and coverage rules can vary.
