Medicare Annual EnrollmentAEP starts Oct 15 Get local helpGet help

Medicare 101

Your complete, plain-English Medicare guide

New to Medicare? Start here. Medicare has four parts — A, B, C, and D. Below are the basics, then dig into any topic.

Part A — Hospital

Inpatient hospital, skilled nursing, hospice. Usually premium-free if you worked 10+ years.

Part B — Medical

Doctor visits, outpatient care, preventive services. Monthly premium set by income.

Part C — Advantage

A private all-in-one alternative bundling A, B, and usually D, often with extras.

Part D — Drugs

Prescription drug coverage, with a 2026 out-of-pocket cap of about $2,100.

How the pieces fit together

Medicare can feel like alphabet soup, but it comes down to one fork. Original Medicare is Parts A (hospital) and B (doctors and outpatient care) straight from the federal government. From there you either add a Medicare Supplement (Medigap) plan plus a standalone Part D drug plan — for go-anywhere provider freedom and predictable costs — or you choose a Medicare Advantage (Part C) plan that bundles A, B, and usually D into one private plan with a network, copays, and extras like dental, vision, and hearing. Neither path is universally better; the right one depends on your health, whether you travel, your prescriptions, and your budget.

Timing matters just as much as the plan. Your Initial Enrollment Period is the seven months around your 65th birthday, the Annual Enrollment Period runs October 15–December 7 each year for changes, and missing your window without creditable coverage can add lifelong Part B and Part D penalties. The articles above walk through each topic in plain English, and you can always verify current-year figures on Medicare.gov.

Because the plans, provider networks, and prices are local and change every year across Mesa, Grand, and San Juan Counties, this is where a local advisor earns their keep. Medicare On Main compares every plan available in your county against your own doctors, drugs, and budget, then stays your advisor for claims, appeals, and the annual review — at no cost to you. We do not offer every plan available in your area.

Getting-started questions

Is Medicare free?

Not entirely. Part A is usually premium-free if you or your spouse paid Medicare taxes for 10+ years. Part B has a standard monthly premium set each year, and Part D and Medicare Advantage premiums vary by plan — some Advantage plans are $0 premium, but $0 premium is not the same as free, because you still have copays and deductibles.

Is Medicare the same as Medicaid?

No. Medicare is federal health insurance based mainly on turning 65 (or disability), regardless of income. Medicaid is a joint state-federal program based on limited income and resources. Some people qualify for both and are called 'dual-eligible,' which often unlocks extra help.

When should I start learning about Medicare?

About 6 months before you turn 65. That gives you time to understand your options before your Initial Enrollment Period opens (the 7 months around your birthday) so coverage is ready the day you're eligible.

Do I need Part D if I don't take any medications?

Usually yes, to avoid a permanent late-enrollment penalty later. A low-cost Part D plan now is almost always cheaper than the penalty you'd owe for life if you sign up after going without creditable coverage.

Still have questions?

Ask a local advisor — it's free.

Ask us anything →

Official Medicare sources

Verify current-year figures with the federal sources: Medicare.gov, Medicare Plan Compare, Social Security (ssa.gov), and CMS.gov. Education only — we do not offer every plan available in your area.