One of the easiest ways to waste money on health care is to use a plan without understanding how it works.

Your health insurance card provides only a small portion of the information you need. Review your plan documents so you know what services are covered and what portion of the cost you are expected to pay.

Important information can include:

Individual and job-based health plans generally provide a Summary of Benefits and Coverage, commonly called an SBC.

The SBC presents important plan information in a standardized format so consumers can more easily compare coverage and costs.

Use it to identify items such as:

• Your overall deductible.
• Separate deductibles that may apply.
• Primary care costs.
• Specialist costs.
• Emergency room costs.
• Hospitalization costs.
• Prescription drug cost sharing.
• Major exclusions or limitations.
• Coverage examples for common medical situations.

Keep the SBC available electronically or on paper. It can serve as a useful starting point when deciding whether a service is likely to be covered, although detailed policy documents control the actual contractual coverage.

Health insurance costs are easier to manage when you understand the different amounts you may be responsible for.

A common misunderstanding is that health insurance provides no value until the deductible has been fully paid.

That is not necessarily true.

Even before meeting the deductible, you may benefit from negotiated in-network rates. Some services may also be subject to a copayment without requiring the entire deductible first, depending on the plan.

Qualifying preventive services can also be covered without cost sharing under applicable rules even when the deductible has not been met.

Using the plan’s provider network is one of the most reliable ways to control medical costs.

In-network providers have contractual arrangements with the health plan. Those arrangements generally include negotiated prices for covered services.

Network status can matter for:

An in-network hospital does not always mean every professional connected with your care has the same network status.

For planned treatment, ask about:

• The hospital or surgery center.
• The surgeon.
• The anesthesiology group.
• The radiology group.
• The pathology laboratory.
• Assistants involved in surgery.
• Outside laboratories.
• Durable medical equipment suppliers.

Federal surprise-billing protections apply in many situations involving emergency care and certain out-of-network professionals working at in-network facilities, but confirming network status in advance is still valuable when you have a choice.

Preventive benefits are among the easiest health insurance benefits to overlook.

Most health plans must cover a defined group of preventive services without cost sharing when applicable requirements are satisfied, generally including use of an in-network provider.

Depending on age, sex, medical circumstances, recommendations, and plan rules, preventive services can include qualifying:

Coverage at no cost is not guaranteed for every test in every circumstance. A diagnostic service performed because symptoms already exist can be billed differently from a preventive screening.

A service can begin as preventive but involve additional diagnostic evaluation that creates cost sharing.

For example, a qualifying screening performed on a person without symptoms may be treated differently from testing ordered to investigate a specific symptom or known condition.

If avoiding unexpected costs matters, ask whether planned laboratory work, imaging, or other testing is expected to be billed as preventive or diagnostic and whether the provider and facility are in network.

Different locations can charge very different amounts for similar non-emergency services.

When medically appropriate, compare the cost-sharing rules for:

The same imaging study, laboratory test, outpatient procedure, or therapy can have different negotiated prices at different in-network facilities.

Before non-emergency expensive care, use any cost-estimator tools provided by your insurer and ask for information about expected patient responsibility.

Questions can include:

• Is the service covered?
• Is this provider in network?
• Is the facility in network?
• What is the estimated allowed amount?
• How much of my deductible remains?
• What coinsurance applies?
• Does a facility fee apply?
• Are laboratory or pathology charges separate?
• Is prior authorization required?

Prescription benefits can become a major portion of annual health spending, especially for people who take medication regularly.

Health plans generally maintain a formulary, which is the plan’s list of covered medications and related coverage rules.

Formularies can use different cost tiers such as:

When medically appropriate, ask your prescriber whether a lower-cost covered alternative is available rather than assuming the first prescription has the lowest out-of-pocket cost.

The pharmacy you use can affect your out-of-pocket cost.

Some plans use preferred pharmacies that offer lower copayments or negotiated costs than other participating pharmacies.

Plans may also provide mail-order or extended-supply options for certain maintenance medications.

Compare:

• 30-day retail cost.
• 90-day retail cost.
• Mail-order cost.
• Preferred pharmacy cost.
• Generic and brand alternatives.
• Any deductible that applies to prescriptions.

Some services and medications require approval from the health plan before coverage requirements are considered satisfied.

Prior authorization can apply to services such as:

Do not assume your doctor’s recommendation automatically means the insurer’s administrative requirements have been completed. Ask the provider and insurer whether authorization is required and whether approval has been obtained.

Some health plans require a primary care physician to coordinate care and provide referrals before certain specialist services.

Other plans allow direct specialist access.

If your plan requires referrals, following the referral process can help prevent administrative denials or unexpected expenses.

Check the referral’s effective dates, number of authorized visits, provider, and service type when applicable.

Your health plan’s online account can generally show how much of your deductible and out-of-pocket maximum has been accumulated during the plan year.

Monitoring those amounts can help with budgeting and planning non-urgent covered care.

The out-of-pocket maximum can provide important protection against very high annual costs, but not every dollar you spend necessarily counts toward it.

Costs that may not count can include:

• Monthly premiums.
• Non-covered services.
• Amounts above allowed charges when applicable.
• Certain out-of-network expenses.
• Other expenses excluded from accumulation by the plan.

Review your plan’s specific rules rather than assuming every medical payment moves you closer to the maximum.

A Health Savings Account can provide federal tax advantages for eligible individuals enrolled in qualifying high-deductible health plan coverage who satisfy HSA eligibility rules.

For 2026, the federal HSA contribution limits are:

Additional rules apply, including eligibility requirements, contribution calculations for partial-year eligibility, and catch-up contributions for certain individuals age 55 or older.

HSA balances can generally remain in the account from year to year instead of disappearing at the end of the plan year.

Health Savings Accounts and Flexible Spending Arrangements can both provide tax advantages for eligible medical spending, but they operate differently.

FSA rules can include employer-plan-specific deadlines, carryover provisions, or grace periods. Do not assume an FSA balance has the same long-term portability as an HSA.

If your employer offers an FSA, understand its annual election rules and any deadline for using available funds.

An Explanation of Benefits, or EOB, is one of the most useful documents you receive after using health insurance.

An EOB is not a bill. It explains how the insurer processed the claim and what amount may remain your responsibility.

An EOB can show:

Do not assume every medical bill is automatically correct.

Before paying, verify:

• The patient’s name.
• Date of service.
• Provider.
• Services received.
• Whether insurance was billed.
• Whether the correct insurance information was used.
• Whether the provider was treated as in network when appropriate.
• Amount the insurer says you owe.
• Payments you already made.

If the bill and EOB do not match, contact the provider’s billing department and health plan before paying an amount you believe is incorrect.

The federal No Surprises Act provides important billing protections for people with most types of private health insurance.

Federal protections generally apply to many situations involving:

In many protected situations, you generally cannot be charged more than the applicable in-network cost sharing.

Protections have exceptions. For example, federal surprise-billing protections generally do not cover ordinary out-of-network care you intentionally obtain at an out-of-network facility, and ground ambulance billing remains an important exception under federal law unless other protections apply.

In certain situations, an out-of-network provider can ask you to sign a notice and consent form acknowledging that you may be charged out-of-network rates.

Signing an eligible waiver can mean giving up important federal balance-billing protections.

Read the form carefully, determine whether an in-network alternative exists, and understand the expected cost before voluntarily waiving protections when a waiver is legally permitted.

A denied claim does not always mean the issue is finished.

Claims can be denied for reasons such as:

• Missing information.
• Coding problems.
• Failure to obtain required authorization.
• Network disputes.
• A plan determination that a service was not medically necessary.
• A determination that treatment was experimental or investigational.
• A benefit limitation or exclusion.
• Other administrative or coverage reasons.

Start by reading the denial notice and EOB carefully. Ask the provider whether the issue can be corrected and resubmitted before assuming a formal appeal is required.

Federal consumer protections generally give covered individuals the right to ask the health plan to reconsider certain denials.

HealthCare.gov states that an internal appeal generally must be filed within 180 days of receiving notice of the denial.

Useful appeal documentation can include:

If an internal appeal does not resolve an eligible dispute, you may have the right to request review by an independent third party.

External review can apply to certain denials involving medical judgment, treatment considered experimental or investigational, and other covered circumstances.

HealthCare.gov generally states that a request for external review must be filed within four months after receiving the applicable final denial or determination, although specific processes can depend on the state and plan.

Urgent medical situations can have expedited review procedures.

Good recordkeeping can save considerable time when claims become complicated.

Keep important documents such as:

• Insurance identification cards.
• Summary of Benefits and Coverage.
• Detailed benefit documents.
• Prior authorization approvals.
• Referral records.
• Explanation of Benefits statements.
• Medical bills.
• Receipts.
• Prescription records.
• Appeal correspondence.
• Notes from important calls.

For important conversations, record the date, representative’s name, reference number, and what you were told.

Health plan benefits can change from one year to the next.

Before automatically renewing, check for changes to:

A plan that worked well last year may become less attractive if a physician leaves the network, an important medication moves to a more expensive tier, or cost sharing changes substantially.

A low monthly premium does not automatically make a plan the least expensive choice for the year.

Your total annual cost can include:

If you receive health insurance through work, look beyond the medical plan itself.

Your employer may also offer benefits such as:

• HSA contributions.
• Flexible Spending Arrangements.
• Telehealth.
• Mental health programs.
• Employee assistance programs.
• Wellness resources.
• Second-opinion services.
• Care-navigation assistance.
• Disease-management programs.
• Other supplemental health resources.

An employer HSA contribution, for example, can materially change the effective cost comparison between available health plans.

People managing chronic or complex medical conditions may have access to additional health-plan resources.

Depending on the plan, resources can include:

• Nurse care managers.
• Case management.
• Disease-management programs.
• Medication-management support.
• Care coordination.
• Behavioral health resources.
• Second-opinion programs.

These programs can help members navigate treatment, understand coverage, coordinate providers, and identify plan resources that might otherwise go unused.

Choosing a Plan Based Only on the Premium

A low premium can come with a higher deductible, more coinsurance, a narrower network, or more expensive prescriptions. Compare expected total annual spending rather than premiums alone.

Assuming Every Doctor Accepting Your Insurance Is In Network

A provider saying it “accepts” an insurer does not necessarily mean the provider participates in your specific plan network. Verify the exact plan.

Ignoring Preventive Benefits

You may be paying premiums for coverage that includes qualifying preventive services without cost sharing and never using those benefits.

Not Checking the Prescription Formulary

Two medically appropriate medications can have dramatically different costs under your plan. Ask about covered alternatives and preferred pharmacies.

Skipping Prior Authorization

A medically appropriate service can still encounter coverage problems when required administrative approval was not obtained.

Paying a Bill Without Reading the EOB

The EOB explains how the insurer processed your claim and what it believes your responsibility is. Compare it with the provider’s bill before paying.

Assuming a Denial Cannot Be Challenged

Consumers have important appeal rights. Read denial notices carefully and act before the applicable deadline.

Automatically Renewing Without Reviewing the New Plan Year

Networks, formularies, premiums, deductibles, and cost sharing can change. Review the new plan before automatically assuming it remains the best choice.

Getting the most from your health insurance plan requires more than simply presenting your insurance card when you need care. Learn the plan’s deductible, copayments, coinsurance, out-of-pocket maximum, network, formulary, referral requirements, prior authorization rules, and appeal process before an expensive medical event occurs.

Stay in network when practical, take advantage of qualifying preventive benefits, compare planned-care costs, use prescription benefits strategically, and monitor how much of your deductible and out-of-pocket maximum you have accumulated. If you are eligible for an HSA or another tax-advantaged health benefit, understand how it can fit into your overall medical spending strategy.

After receiving care, read the EOB before paying the provider’s bill. Question unexpected charges, learn your federal surprise-billing protections, and do not automatically accept a claim denial without determining whether correction, internal appeal, or external review is available.

Finally, review your health plan every year. Premiums are only one part of the cost. Networks, prescriptions, deductibles, cost sharing, and the services you expect to use can determine whether a plan that looks inexpensive is actually the best financial fit for you and your family.

• HealthCare.gov, Summary of Benefits and Coverage, accessed August 2026.
• HealthCare.gov, Preventive Health Services, accessed August 2026.
• HealthCare.gov, Getting Prescription Medications, accessed August 2026.
• HealthCare.gov, Internal Appeals and External Review, accessed August 2026.
• HealthCare.gov, Your Total Costs for Health Care: Premium, Deductible, and Out-of-Pocket Costs, accessed August 2026.
• Centers for Medicare & Medicaid Services, How to Read a Health Insurance Explanation of Benefits, updated August 25, 2026.
• Centers for Medicare & Medicaid Services, Know Your Medical Bill of Rights, updated August 25, 2026.
• Centers for Medicare & Medicaid Services, Planning Care With Health Insurance, updated August 2026.
• Centers for Medicare & Medicaid Services, No Surprises Act Consumer Guidance, accessed August 2026.
• Internal Revenue Service, Revenue Procedure 2025-19, 2026 HSA contribution limits.