How to Choose Health Insurance: A Step-by-Step Guide
By Laurel C. Yazzie | Last reviewed: October 2026
If you are staring at a list of health plans and feeling stuck, you are not alone. Knowing how to choose health insurance before you start comparing options can save you money and prevent coverage surprises when you actually need care. This guide walks you through the five decisions you need to make, in the right order.
Having worked directly with clients on health coverage decisions, the most common misconception I encountered was that the plan with the lowest monthly premium is automatically the best deal. A cheap premium can come with a high deductible that costs far more over a full year.
How to choose health insurance: Start by finding out where you can buy coverage (employer, marketplace, Medicaid, or Medicare). Then compare plan types, understand how costs are split between you and the insurer, check that your doctors are in-network, and calculate your total estimated annual cost before you enroll.
How to Choose Health Insurance in Five Steps
Every plan comparison comes down to five core decisions. Working through them in order keeps you from getting distracted by details that only matter after the basics are settled.
- Find out where you can get coverage
- Compare the available plan types
- Understand what you will pay out of pocket
- Confirm your doctors and hospitals are in-network
- Calculate your total estimated annual cost
Step 1: Find Out Where You Can Get Coverage
Before comparing specific plans, you need to know which coverage sources are available to you. Your starting point depends on your employment and income situation.
- Employer plan: If your job offers health benefits, this is usually the most affordable option because your employer pays part of your monthly premium.
- Health Insurance Marketplace: If no employer plan is available, visit HealthCare.gov to see plans in your area and check whether you qualify for income-based premium tax credits.
- Medicaid: A free or low-cost option for people with limited income. You can apply at any time of year, with no enrollment deadline.
- Medicare: Available to people age 65 and older and to some younger people with qualifying disabilities.
If you have access to an employer plan, compare it to marketplace options before assuming your workplace plan is the better value. In some cases, a marketplace plan with a premium tax credit works out to a lower total cost for your household.
Step 2: Compare Health Insurance Plan Types
Once you know where you are shopping, the next step is choosing a plan structure. The four most common types each handle your access to doctors differently, and the choice affects both your monthly cost and how freely you can see specialists.
| Plan Type | How It Works | Best For |
|---|---|---|
| HMO | Requires a primary care doctor; referrals needed to see specialists; no coverage for out-of-network care except emergencies | People who want lower monthly costs and do not need frequent specialist visits |
| PPO | No referrals needed; can see any doctor; out-of-network visits are covered at a higher cost | People who want full flexibility in choosing doctors or specialists |
| EPO | No referrals needed; must stay in-network except in emergencies; no out-of-network coverage otherwise | People who want some flexibility without referrals but at a lower cost than a PPO |
| POS | Hybrid of HMO and PPO; referrals usually required; limited out-of-network coverage available at higher cost | People who want some out-of-network access but also want the cost savings of managed care |
Which Plan Type Is Right for You?
Use this decision framework to narrow your choice before comparing premiums:
If you have a preferred doctor or specialist you want to keep, choose a PPO or POS so you are not locked into a single network.
If you are comfortable using an assigned primary care doctor and want the lowest premiums, choose an HMO.
If you want the freedom to see any in-network specialist without referrals and can stay in-network, choose an EPO.
For a side-by-side breakdown of the two most widely used options, see our guide on how HMO and PPO plans differ.
Step 3: Understand What You Will Pay Out of Pocket
Your monthly premium is only one piece of what a health plan actually costs you. When reviewing policies, the full cost picture includes four separate components, and each one affects the others.
- Premium: The fixed monthly amount you pay whether or not you use any medical services that month.
- Deductible: The amount you pay in full for covered services before your insurer begins sharing costs. Learn more about how your deductible works before picking a plan.
- Copay and coinsurance: Your share of the cost after you have met your deductible. Copays are flat fees per visit; coinsurance is a percentage of the total bill.
- Out-of-pocket maximum: The most you will pay in a single plan year. Once you hit this cap, the insurer covers 100% of all covered services for the rest of the year.
What If You Are Healthy and Rarely Use Your Insurance?
Many people assume the plan with the lowest premium is the obvious choice when they are in good health. That logic works only if you can comfortably cover a large, unexpected medical bill on your own. A low-premium plan almost always carries a high deductible, which means the first several thousand dollars of any hospital visit or specialist care falls entirely on you before the insurer pays a dollar.
A more reliable approach: estimate what you realistically expect to spend on care in a given year, then use the total annual cost formula in Step 5. If you rarely visit a doctor and have savings set aside to cover your deductible in a bad year, a lower-premium plan may still make financial sense. If an unexpected large bill would strain your finances, a higher-premium plan with a lower deductible typically protects you better. The cheapest plan today is not always the cheapest plan when something actually goes wrong.
Step 4: Confirm Your Doctors Are In-Network
Choosing a plan without checking the provider network is one of the most expensive mistakes people make during open enrollment. From a practical standpoint, seeing a doctor who is out of network can cost significantly more than the same visit in-network, or it may not be covered at all under certain plan types.
Before you finalize any plan, take these steps:
- List every doctor, specialist, and hospital you currently use or expect to need in the coming year.
- Look up each provider in the plan’s online directory before you enroll.
- Call the doctor’s office directly to verify they accept the specific plan, not just the insurer’s name in general.
- Check the plan’s drug formulary to confirm your current prescriptions are covered at a reasonable tier.
What If You Miss Open Enrollment?
Most people can only enroll in or switch a health insurance plan during the annual open enrollment window. If you miss it, you may still qualify for a Special Enrollment Period if you experience a qualifying life event, such as losing job-based coverage, getting married, or having a child. You can check your eligibility and enroll through HealthCare.gov. Medicaid and CHIP accept applications year-round with no enrollment deadlines, so those options remain open regardless of timing.
Step 5: Calculate Your Total Annual Cost Before You Enroll
The most reliable way to compare two plans side by side is to estimate what each one will actually cost you over a full year, not just per month. This single step prevents the most common error people make when choosing coverage.
Total annual cost formula:
(Monthly premium x 12) + your expected out-of-pocket spending for the year
Your expected out-of-pocket figure is based on realistic care usage: routine visits, prescriptions, and any planned procedures. For a healthy person with minimal care, this may be close to zero. For someone managing a chronic condition, it may approach the plan’s annual out-of-pocket maximum. Run this formula for every plan you are seriously considering, then compare the totals.
According to the National Association of Insurance Commissioners (NAIC), comparing total estimated costs rather than premiums alone is the most effective method for identifying the plan that fits your actual situation. A plan that looks expensive on a monthly basis can be the better financial choice once the full picture is laid out.
For more on all the topics covered here, including plan types, deductibles, and cost-sharing terms, visit our health insurance guides.
FAQ: How to Choose Health Insurance
Tap any question to expand the answer.
Can I choose health insurance at any time of year?
Most health insurance plans can only be purchased or changed during the annual open enrollment period, which typically runs in the fall for coverage starting January 1. Outside of that window, you can still enroll if you qualify for a Special Enrollment Period triggered by a life event such as losing job-based coverage, getting married, or having a child. Medicaid and the Children’s Health Insurance Program (CHIP) are exceptions: you can apply for those programs at any time of year without waiting for an enrollment window.
What is the difference between an HMO and a PPO?
An HMO (Health Maintenance Organization) requires you to choose a primary care doctor who coordinates your care and provides referrals to specialists. You generally cannot see out-of-network providers except in emergencies. A PPO (Preferred Provider Organization) gives you more flexibility: you can see any doctor or specialist without a referral, and out-of-network visits are covered at a higher cost rather than not covered at all. HMOs typically have lower monthly premiums, while PPOs offer broader access at a higher price. The right choice depends on how important it is to you to choose your own doctors without restriction.
Is a high-deductible health plan a good idea?
A high-deductible health plan (HDHP) can make good financial sense if you are generally healthy, rarely need medical care, and have enough savings to cover your deductible in a year where something unexpected happens. HDHPs qualify you to open a Health Savings Account (HSA), which lets you set aside pre-tax dollars for medical expenses, adding another financial advantage. However, if you have a chronic condition, take regular prescriptions, or would struggle to cover a large out-of-pocket bill, a lower-deductible plan with higher monthly premiums may protect your finances better. The total annual cost formula in Step 5 of this guide is the most reliable way to compare your real options.
How do I know if my doctor is in-network?
Every health insurance plan maintains an online provider directory where you can search by doctor name, specialty, or location to see whether that provider is in the plan’s network. You should check the directory for every plan you are seriously considering before you enroll, not after. It is also worth calling your doctor’s office directly to confirm they accept the specific plan, since provider directories are not always updated in real time. A provider who accepts the insurer’s name in general may not be contracted under every individual plan that insurer offers.
What should I look for when comparing plans on the marketplace?
When shopping on the Health Insurance Marketplace at HealthCare.gov, start by checking whether you qualify for a premium tax credit based on your income, since this can significantly reduce your monthly cost. Then compare plans using the total annual cost method: multiply each plan’s monthly premium by 12 and add your estimated out-of-pocket spending for the year. Also confirm your current doctors are in-network under each plan you are considering, and check the drug formulary if you take regular prescriptions. Metal tiers (Bronze, Silver, Gold, Platinum) reflect how costs are split between you and the insurer: Bronze plans have lower premiums but higher cost-sharing; Platinum plans have higher premiums but lower cost-sharing when you use care.
