Navigating US Health Insurance
Premiums, deductibles, out-of-pocket maximums and networks. How to compare employer plans during open enrollment without a spreadsheet headache.
Navigating US Health Insurance
The maximum you can lose in a year is a number printed in your plan documents, and almost nobody reads it. It is not the deductible, and it is not the premium. It is the out-of-pocket maximum, and it is the only figure that tells you what a bad year actually costs.
Find that number first. Everything else in this article is a footnote to it.
The four numbers that matter
Plan marketing leads with the premium because it is the smallest one. The order of importance is the reverse.
| Term | What it means | Typical figure |
|---|---|---|
| Premium | What leaves your paycheck every month | $150–$500 single, $600–$1,800 family |
| Deductible | What you pay in full before most coverage starts | $1,500–$4,000 |
| Coinsurance | Your share after the deductible | 20–40% |
| Out-of-pocket maximum | The ceiling on your share for the year | $5,000–$9,200 |
The out-of-pocket maximum is the only genuinely protective number in that list. Once you hit it, the plan pays 100% of covered in-network care for the rest of the plan year. A $250,000 hospital bill and a $25,000 hospital bill cost you exactly the same amount: the maximum, plus twelve months of premiums.
Comparing the plan types
| Plan type | How it works | Who it suits |
|---|---|---|
| HMO | In-network only, referrals for specialists | People who want the lowest premium and are fine staying in network |
| EPO | In-network only, no referrals needed | Same as HMO with less friction |
| PPO | In and out of network, at higher cost out of network | People with established specialists or frequent travel |
| HDHP | Low premium, high deductible, HSA-eligible | Healthy people who can cover the deductible from savings |
The HDHP is the plan most people misread. It looks worse on the deductible line and better almost everywhere else, because it comes attached to a health savings account — the only account in the US tax code with a deduction going in, tax-free growth, and tax-free withdrawals for medical costs. That triple treatment is worth more over twenty years than the difference in deductibles on most plans.
- Annual premium
- Out-of-pocket maximum
The HDHP saves $3,600 a year in premiums against the PPO and costs at most $2,200 more in a catastrophic year. It wins on total cost in every scenario where you stay healthy.
Illustrative. Figures reflect typical employer-sponsored plan structures; actual premiums, deductibles and maximums vary by employer, state and year. The 2025 ACA maximum for self-only coverage is $9,200.
What a year actually costs
Premiums are paid whether or not you use care. Everything else depends on how the year goes, which is why comparing plans on the premium alone produces bad decisions.
| Scenario | HDHP total | PPO total |
|---|---|---|
| No care beyond a check-up | $2,600 | $4,400 |
| Two urgent care visits, one specialist | $3,700 | $4,900 |
| Minor surgery ($12,000 billed) | $8,000 | $7,400 |
| Major event (hits the maximum) | $9,400 | $15,200 |
The HDHP loses narrowly on the minor surgery and wins everywhere else, badly. If you have a chronic condition with predictable, high, ongoing costs, the traditional plan is the right answer and you should ignore the HSA argument entirely. If you take one prescription and see a doctor twice a year, the HDHP plus a funded HSA is not a close call.
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