If you're approaching 65 — or helping a parent navigate this for the first time — Medicare can feel like a maze before you've even started.
The honest truth: Medicare isn't as complicated as it seems once you understand the basic structure. It's a federal health insurance program, it's organized into a few distinct parts, and most people have more choices than they realize. This guide walks you through what Medicare is, what it covers, what it doesn't, and the choices you'll face once you're enrolled.
Who Is Medicare For?
Medicare is the federal health insurance program primarily for people age 65 and older. It's also available to younger people with certain qualifying conditions:
- People who have received Social Security Disability Insurance (SSDI) for at least 24 months
- People of any age diagnosed with End-Stage Renal Disease (permanent kidney failure)
- People of any age diagnosed with ALS (Amyotrophic Lateral Sclerosis)
You also need to be a U.S. citizen or a lawful permanent resident who has lived in the United States continuously for at least five years.
Original Medicare: The Foundation
When most people say "Medicare," they mean Original Medicare — the federal program made up of two parts:
| Medicare Part | What It Covers | Your 2026 Costs |
|---|---|---|
| Part A — Hospital Insurance | Inpatient hospital stays, skilled nursing facility care, hospice, limited home health | Most people: $0 premium · Deductible: $1,736 per benefit period · Days 1–60: $0 · Days 61–90: $434/day |
| Part B — Medical Insurance | Doctor visits, outpatient care, lab work, preventive services, durable medical equipment | Premium: starts at $202.90/mo · Annual deductible: $283 · Your share after: 20% with no cap |
Part A is premium-free for most people, as long as you or your spouse worked and paid Medicare taxes for at least 10 years. Part B requires a monthly premium for everyone — and that premium can be higher if your income exceeds certain thresholds.
What Original Medicare Doesn't Cover
Original Medicare is solid coverage — but it has real gaps that catch people off guard. It does not cover:
- Prescription drugs (you need a separate Part D plan)
- Routine dental — cleanings, fillings, dentures
- Routine vision — eye exams, glasses, contact lenses
- Routine hearing — hearing tests, hearing aids
- Long-term custodial care (nursing home or assisted living)
- Most care received outside the United States
Perhaps the most important gap: Original Medicare has no annual out-of-pocket maximum. You're responsible for 20% of all Part B costs with no ceiling. A serious illness or prolonged treatment can add up to thousands of dollars in uncovered costs.
Meet Raymond
Raymond is 66 and lives in Long Beach. When he turned 65 he enrolled in Parts A and B and thought he was set — "government health insurance" sounded comprehensive enough.
Six months later, he was diagnosed with a condition that required regular specialist visits and an outpatient procedure. Between the 20% coinsurance on every appointment and the surgical costs, he ended up with over $3,000 in bills he hadn't anticipated.
A quick review with a Medicare specialist found him a supplement plan that fit his budget. Today he rarely faces surprise bills. The lesson: review your options before you turn 65, not after the first big bill.
Your Two Options for More Complete Coverage
Once you're enrolled in Original Medicare, you have two main ways to build on it:
Option 1: Stay with Original Medicare + add a Medigap Supplement plan. A private policy that pays alongside Original Medicare and covers some or all of the remaining 20%. See any Medicare-accepting doctor nationwide. Requires a separate Part D plan for prescriptions.
Option 2: Switch to a Medicare Advantage plan (Part C). One bundled plan for hospital, medical, and usually drug coverage — often with extras like dental, vision, hearing, or fitness benefits. Uses provider networks (HMO or PPO). Has an annual out-of-pocket maximum.
| Feature | Original Medicare + Medigap | Medicare Advantage (Part C) |
|---|---|---|
| Provider access | Any Medicare-accepting provider nationwide | Network-based (HMO/PPO); out-of-network costs more |
| Out-of-pocket cap | Dramatically reduced by the supplement | Annual maximum required by law |
| Prescriptions | Requires a separate Part D plan | Usually included |
| Extra benefits | None beyond cost coverage | Often includes dental, vision, hearing, fitness |
Which Path Is Right for You?
Medigap tends to work better for people who travel, have complex health needs, want to keep their existing doctors without network restrictions, and prefer predictable costs.
Medicare Advantage tends to work better for people who want one convenient plan, don't mind network restrictions, are interested in extra benefits, and want lower upfront monthly costs.
New to Medicare? Let's make it simple.
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