How Health Insurance Works in the USA — Marketplace, Medicaid, Employer-Sponsored

Introduction / Who is it for

The USA does not have universal health insurance. Everyone must arrange their own. Without insurance, a single hospital stay can cost tens of thousands of dollars. This guide shows the 3 main paths.

Path 1: Employer-Sponsored Insurance (most popular)

Most companies in the USA offer employer-sponsored health insurance. The employer pays part of the premium, and the employee pays the rest from their salary.

• Employee premium: 100-500 USD/month (single) or 300-1500 USD/month (family)
• Deductible: 500-5,000 USD per year — the amount you pay before insurance kicks in
• Copay: 20-100 USD per doctor visit
• Out-of-pocket maximum: 3,000-9,100 USD per year (above this, the insurer pays everything)

Open enrollment usually occurs in November/December (Open Enrollment) or within 30-60 days of starting a job.

Path 2: Marketplace (Healthcare.gov)

For individuals without employer insurance or self-employed. Established in 2014 (Affordable Care Act / Obamacare).

Who can apply

• U.S. citizens
• Green Card holders
• Individuals with long-term work visas (H-1B, L-1)
• F-1 students (with restrictions)
• EAD holders

Individuals on tourist visas, ESTA, or without status — DO NOT qualify.

Subsidy — Advance Premium Tax Credit (APTC)

Most applicants receive a federal subsidy that reduces the premium. The amount depends on income relative to the federal poverty level (FPL):

• 100-150% FPL: largest subsidy, premium nearly zero
• 200-300% FPL: significant subsidy
• 400%+ FPL: subsidies phased out (before 2024 — limit temporarily lifted, check current rules)

4 levels of plans

• Bronze — 60% coverage, lowest premium, high deductible
• Silver — 70% coverage, average premium. Choice for individuals with CSR (Cost-Sharing Reductions) subsidies
• Gold — 80% coverage, higher premium, low deductible
• Platinum — 90% coverage, highest premium, lowest deductible

How to apply

1. Go to healthcare.gov (or the state site if the state has its own: California, NY, Washington, etc.)
2. Create an account, fill in family and income details
3. The system shows plans with subsidies
4. Select a plan, pay the first premium
5. Coverage starts on the 1st day of the following month

Open Enrollment dates

November 1 — January 15 each year for the federal marketplace. States with their own deadlines may extend. Outside this period, you can enroll only if you have a "qualifying life event" (job loss, marriage, birth of a child, moving).

Path 3: Medicaid (for low-income individuals)

Medicaid is a joint federal-state program for individuals with the lowest incomes. Free or very low cost.

Who qualifies

Rules are state-specific. Generally:

• Income below 138% of the federal poverty level (in states with Medicaid Expansion)
• Income below another threshold in states without Expansion (Texas, Florida, Mississippi, etc.)
• Children, pregnant women, disabled individuals — often with a higher threshold

Immigration requirements

• U.S. citizens — full coverage
• Green Card holders — full coverage after 5 years of obtaining GC (there are exceptions)
• Other legal residents — emergency Medicaid (only for emergencies)
• Individuals without status — DO NOT qualify; may receive emergency Medicaid in case of an accident

How to apply

Through the state Medicaid website or through Healthcare.gov — the system automatically directs. In most states, online application + documents (paystubs, proof of address, visa/GC).

What if I don't have insurance

• Federally Qualified Health Centers (FQHC) — clinics with sliding-scale fees (you pay based on income)
• Free clinics — free clinics for the uninsured
• Emergency Room — hospitals MUST treat you in an emergency (EMTALA), but will bill you
• Community clinics — some serve the uninsured at lower prices

Costs without insurance (approximate)

• Visit to GP: 150-300 USD
• Visit to ER: 500-3,000 USD (just for registration)
• Hospitalization for 1 day: 5,000-15,000 USD
• Appendix surgery: 30,000-60,000 USD
• Natural childbirth: 12,000-20,000 USD
• C-section: 18,000-30,000 USD

Common mistakes

• Not selecting insurance during Open Enrollment — missing out until the next year
• Choosing the cheapest Bronze plan for a family with children (high deductible is painful)
• Not updating income in the Marketplace (subsidies are reconciled on the annual tax return; overstatement = refund, understatement = payment)
• Not checking if the doctor is "in-network" (out-of-network = high costs)
• Not enrolling in FQHC when uninsured

Negotiating hospital bills

If you receive a high hospital bill:

• Request an "itemized bill" — detailed breakdown
• Ask for a "self-pay discount" — usually 40-70% off
• Apply for "financial assistance" — non-profit hospitals MUST offer this if income is low
• Negotiate a payment plan (interest-free)
• Do not ignore — unpaid bills go to collections and damage credit score