Choosing the right health insurance plan can feel complicated, especially when comparing multiple plan types, coverage rules, and cost structures. Many people focus only on monthly premiums, but that is only one part of the total cost of care. A complete decision should also include deductibles, copayments, coinsurance, provider networks, referral rules, and out-of-pocket maximums. If you are approaching age 65 or helping someone who is, see our Medicare Guide for detailed information on Medicare enrollment and coverage options.
This guide breaks down the most common types of health insurance plans in a clear and structured way so you can compare them easily. It focuses on HMOs, PPOs, EPOs, POS plans, high deductible health plans, and health savings accounts. Each section includes simplified explanations, real-world implications, and structured comparisons to help improve clarity, factual accuracy, and decision-making.
What is an HMO? Definition, Benefits & Considerations
A Health Maintenance Organization (HMO) is a type of managed care health insurance plan that uses a defined network of doctors, hospitals, and healthcare providers. HMOs are designed to reduce healthcare costs by focusing on preventive care and coordinated treatment. In most cases, you must select a Primary Care Physician (PCP), who acts as your main healthcare coordinator.
Your PCP is responsible for referrals to specialists and managing your overall care path. This structure helps reduce unnecessary testing and duplicated services, which can lower overall costs for both insurers and members.
Health maintenance organizations (HMOs) are health plans that typically require members to use a network of doctors and may require referrals for specialty care, helping coordinate services and manage costs.
Healthcare.gov — Health Insurance Glossary; Official federal definitions of HMO structures and coverage terms.
Key Features of HMOs
- Requires a Primary Care Physician (PCP)
- Requires referrals for most specialists
- Lower monthly premiums compared to PPOs
- Lower out-of-pocket costs within network
- Limited or no out-of-network coverage (except emergencies)
Pros and Cons of HMOs
| Pros | Cons |
|---|---|
| Lower monthly premiums | Limited provider network |
| Coordinated care through PCP | Requires referrals for specialists |
| Predictable out-of-pocket costs | Less flexibility in choosing doctors |
| Focus on preventive care | Out-of-network care usually not covered |

What is a PPO?
A Preferred Provider Organization (PPO) offers more flexibility than an HMO. PPO plans allow you to see specialists without a referral and give you the option to visit both in-network and out-of-network providers. However, using out-of-network providers usually results in higher costs.
PPO plans are often preferred by individuals who want more control over their healthcare decisions or who already have established relationships with doctors outside of a specific network.
Advantages of PPO Plans
- No referral needed to see specialists
- Large provider network options
- Out-of-network care available (higher cost)
- Greater flexibility in choosing doctors
Disadvantages of PPO Plans
- Higher monthly premiums compared to HMOs
- Higher out-of-pocket costs for out-of-network care
- More complex billing when using out-of-network providers
HMO vs PPO Comparison
| Feature | HMO | PPO |
|---|---|---|
| Monthly Premium | Lower | Higher |
| Referrals Required | Yes | No |
| Out-of-Network Coverage | Limited | Available |
| Flexibility | Low | High |
What is an EPO?
An Exclusive Provider Organization (EPO) combines elements of both HMOs and PPOs. Like an HMO, it typically requires you to stay within a network of providers. However, like a PPO, it does not require referrals to see specialists.
EPO plans are often chosen by people who want lower costs than PPOs but more flexibility than HMOs.
What is a POS Plan?
A Point of Service (POS) plan combines features of both HMO and PPO structures. Members typically choose a Primary Care Physician and need referrals for specialists, but they also have the option to go outside the network at a higher cost.
High Deductible Health Plans (HDHP)
A High Deductible Health Plan (HDHP) has lower monthly premiums but higher deductibles. This means you pay more out-of-pocket before insurance begins covering services.
High deductible health plans (HDHPs) are designed to have lower premiums and higher deductibles, and they can be paired with Health Savings Accounts (HSAs) that offer tax advantages for qualified medical expenses.
Internal Revenue Service — Publication 969; Guidance on HSAs and HDHP requirements.
Health Savings Account (HSA)
An HSA is a tax-advantaged savings account used with HDHPs. You can contribute pre-tax income to pay for qualified medical expenses such as prescriptions, doctor visits, and medical supplies.

Benefits of an HSA
- Tax-free contributions
- Tax-free withdrawals for qualified medical expenses
- Funds roll over year to year
- Can be invested for long-term growth
Flexible Spending Account (FSA)
An FSA also allows you to use pre-tax dollars for medical expenses, but unlike an HSA, funds typically must be used within the plan year or they may be forfeited.
Key Cost Components of Health Insurance
Understanding total cost is essential when comparing health insurance plans. Costs are not limited to monthly premiums. You should also evaluate deductibles, copayments, coinsurance, and out-of-pocket maximums.
| Cost Type | Definition |
|---|---|
| Premium | Monthly payment to keep coverage active |
| Deductible | Amount paid before insurance begins to cover costs |
| Copayment | Fixed fee per visit or service |
| Coinsurance | Percentage of costs shared after deductible |
| Out-of-Pocket Max | Maximum you pay in a year before full coverage begins |
This Medicare resource was provided by Amerus Insurance Group, a trusted source for individual and family health insurance solutions nationwide. We help clients compare ACA marketplace plans, private health coverage, and supplemental options to find the right balance of benefits and affordability.
By comparing plan structures, cost factors, and provider networks, you can make a more informed and confident healthcare decision. Each plan type serves different needs, and the best choice depends on your budget, preferred doctors, and expected healthcare usage.
Frequently Asked Questions About Types of HealthCare Plans
The most common types of health care plans include HMO, PPO, EPO, POS, and High-Deductible Health Plans (HDHPs).
Each plan differs in provider network rules, referral requirements, monthly premiums, deductibles, and out-of-pocket costs. Choosing the right option depends on your budget, medical needs, and preferred doctors.
HMO plans generally require members to use in-network doctors and select a primary care physician for referrals to specialists.
PPO plans provide more flexibility by allowing out-of-network care and specialist visits without referrals, but they often come with higher monthly premiums and deductibles.
HDHPs are health insurance plans with higher deductibles and lower monthly premiums compared to traditional plans.
Many HDHPs qualify for Health Savings Accounts (HSAs), allowing individuals to save pre-tax money for eligible medical expenses while reducing overall tax liability.
EPO plans require members to stay within a provider network but usually do not require referrals for specialists.
POS plans combine features of HMOs and PPOs by offering lower-cost in-network care while still allowing some out-of-network services with referrals.
Families often choose PPO or POS plans because they provide broader provider access and flexibility for pediatricians, specialists, and urgent care visits.
However, some families prefer HMO plans for their lower monthly premiums and predictable in-network costs.
Compare monthly premiums, deductibles, provider networks, prescription drug coverage, and maximum out-of-pocket costs before selecting a plan.
You should also consider how often you visit doctors, whether your preferred providers are in-network, and your expected medical expenses throughout the year.
Most people can change health insurance plans during the annual open enrollment period.
Outside of open enrollment, you typically need a qualifying life event such as marriage, divorce, childbirth, loss of coverage, or a job change to qualify for a special enrollment period.
Most major health insurance plans include prescription drug coverage, but covered medications and costs vary by insurer and plan type.
Reviewing a plan’s formulary can help you determine whether your medications are covered and what your copays or coinsurance may be.
Health insurance costs vary based on age, location, income, tobacco use, coverage level, and family size.
Plans with lower deductibles and larger provider networks often have higher monthly premiums, while HDHPs usually offer lower premiums but higher upfront medical costs.
You can compare health insurance plans through employer benefits portals, licensed insurance agencies, private marketplaces, or the federal Health Insurance Marketplace.
Comparing multiple plans side by side can help you find coverage that fits your medical needs, preferred providers, and monthly budget.

