How to Choose a Health Insurance Plan: HMO vs. PPO vs. HDHP Explained
The three most common types of health insurance plans each represent a different trade-off between premium cost, out-of-pocket costs, and flexibility:
HMO (Health Maintenance Organization): Lower premiums, but you must select a primary care physician who coordinates all your care and provides referrals to specialists. You can only see providers in the HMO network (except emergencies). HMOs make sense if you have a trusted primary care doctor in-network, rarely need specialists, and prioritize lower monthly premiums.
PPO (Preferred Provider Organization): Higher premiums, but you can see any doctor without a referral, and you have both in-network and out-of-network coverage (though out-of-network is more expensive). PPOs make sense if you have specialist relationships you want to maintain, travel frequently, or prefer flexibility over cost.
HDHP (High Deductible Health Plan) + HSA: Lowest premiums but high deductibles (minimum $1,650 for individual coverage in 2026). The real advantage is HSA eligibility: HSA contributions are tax-deductible, grow tax-free, and can be withdrawn tax-free for qualified medical expenses. For healthy individuals who rarely need medical care and can fund the HSA, HDHPs often provide the best long-term financial outcome.
"The single biggest mistake people make with health insurance is choosing a plan based only on the monthly premium. A $200/month premium with a $7,000 deductible is worse than a $350/month premium with a $1,500 deductible for anyone who uses their insurance at all. Calculate your total maximum annual cost — premiums plus worst-case out-of-pocket — not just the monthly premium."
— Marcus Holloway, Senior Insurance Analyst, Insurance Smart Guide
ACA Premium Tax Credits: Who Qualifies and How Much You Save
The Affordable Care Act provides premium tax credits to individuals and families with incomes between 100% and 400% of the federal poverty level (FPL). Enhanced credits enacted in the American Rescue Plan Act and extended through 2025 also cap premiums at 8.5% of household income for those above 400% FPL.
In 2026, the income thresholds for a single adult are approximately $15,060-$60,240 for the 100-400% FPL range. A single 35-year-old earning $35,000 (233% FPL) would pay approximately $180-$200/month for a benchmark Silver plan after credits — compared to the full unsubsidized premium of $456/month.
To claim premium tax credits, you must purchase coverage through your state's ACA marketplace during Open Enrollment (November 1 - January 15) or a Special Enrollment Period. Subsidies are not available for plans purchased outside the marketplace.
Frequently Asked Questions About Health Insurance
What is the difference between a deductible and an out-of-pocket maximum?
A deductible is the amount you pay for covered healthcare services before your insurance begins paying. For example, with a $2,000 deductible, you pay the first $2,000 of covered costs. After you meet your deductible, you typically pay a copay or coinsurance for subsequent services until you reach your out-of-pocket maximum. The out-of-pocket maximum is the most you will pay for covered services in a plan year — once reached, your plan pays 100% of covered costs for the rest of the year. In 2026, the ACA out-of-pocket maximum is $9,450 for individual coverage and $18,900 for family coverage.
Can I keep my doctor with a new health insurance plan?
Not necessarily. Each health insurance plan has a network of contracted providers. Before enrolling in any plan, verify your preferred doctors, specialists, and hospital are in-network using the insurer's online provider directory. Also verify that specific facilities (your preferred hospital or surgery center) are in-network, not just individual doctors. Be especially careful with referrals — an in-network surgeon can perform a procedure at an out-of-network facility, generating a large out-of-network bill. Always confirm network status directly with both the provider and the insurer before scheduling care.
What happens if I miss Open Enrollment?
If you miss the ACA Open Enrollment period (November 1 - January 15), you cannot enroll in an ACA marketplace plan unless you qualify for a Special Enrollment Period triggered by a qualifying life event. Qualifying events include losing job-based coverage, getting married or divorced, having a baby or adopting a child, moving to a new state, and certain income changes. You have 60 days from the qualifying event to enroll. Outside of these windows, your options are limited to short-term health plans (which have significant coverage limitations), COBRA continuation coverage, or Medicaid if your income qualifies.
Sources and Data References
- Kaiser Family Foundation Health Insurance Marketplace Calculator 2026 — subsidy eligibility data
- Centers for Medicare and Medicaid Services (CMS) 2026 Open Enrollment Data — enrollment statistics
- IRS Rev. Proc. 2025-29 — HSA contribution limits for 2026
- Healthcare.gov Plan Preview Tool 2026 — benchmark premium data