Medicare foundations
Educational guide · 4 min read · Reviewed 2026-06-05 by the licensed agents at Medicare Twins.
Important: We do not offer every plan available in your area. Currently we represent several organizations offering Medicare Advantage, Medicare Supplement (Medigap), and Part D plans in your state. Please contact Medicare.gov, call 1-800-MEDICARE, or contact your local State Health Insurance Assistance Program (SHIP) to get information on all of your options.
Not connected with or endorsed by the United States government or the federal Medicare program.
Free audio version, generated on demand by Google Cloud Text-to-Speech.
Medicare is the federal health insurance program primarily for people 65 and older, as well as some younger people with a qualifying disability or End-Stage Renal Disease (ESRD). It is organized into four “parts,” each covering a different slice of care.
A person generally qualifies for Medicare if they are:
Most people get premium-free Part A because they (or a spouse) paid Medicare taxes while working. More than 99% of beneficiaries pay no Part A premium. Part B always carries a monthly premium set each year by the federal government.
“Original Medicare” is the government-run program and is made up of Part A + Part B.
Covers inpatient care, including:
Part A uses benefit periods, not a calendar-year deductible. A person pays the Part A inpatient hospital deductible each time they start a new benefit period, plus daily coinsurance for longer stays.
Covers outpatient and physician care, including:
On its own, Original Medicare leaves notable gaps. It generally does not cover:
Because of these gaps, most people add coverage — either a Medicare Advantage plan (Part C) or a Medicare Supplement (Medigap) plus a stand-alone Part D drug plan.
Part C, or Medicare Advantage (MA), is an alternative to Original Medicare offered by private insurance companies approved by Medicare. An MA plan must cover everything Parts A and B cover, and usually bundles in extra benefits (often prescription drugs, and frequently dental, vision, or hearing). The beneficiary still pays their Part B premium. See Medicare Advantage (Part C).
Part D helps pay for prescription drugs. It comes either as a stand-alone prescription drug plan (PDP) added to Original Medicare, or built into a Medicare Advantage plan (called an MAPD). See Part D Prescription Drug Coverage.
Because Original Medicare doesn’t cover everything, people typically choose one of these approaches:
There is no single “best” path — the right fit depends on a person’s budget, preferred doctors, prescriptions, travel habits, and health needs. An agent’s role is to educate so the consumer can make an informed choice.
| Part | Common name | Covers | Offered by |
|---|---|---|---|
| A | Hospital insurance | Inpatient hospital, SNF, hospice, some home health | Government (Original Medicare) |
| B | Medical insurance | Doctor/outpatient, preventive, labs, equipment | Government (Original Medicare) |
| C | Medicare Advantage | A+B combined, often drugs + extras | Private insurers |
| D | Prescription drug | Outpatient prescription drugs | Private insurers |
See also: Medicare Advantage (Part C), Medicare Supplement (Medigap) Plans & Underwriting, Part D Prescription Drug Coverage, Medicare & ACA Enrollment Windows, Medicare Advantage vs. Medigap — Side by Side.
A person generally qualifies for Medicare if they are: Most people get premium-free Part A because they (or a spouse) paid Medicare taxes while working. More than 99% of beneficiaries pay no Part A premium.
“Original Medicare” is the government-run program and is made up of Part A + Part B.
Part C, or Medicare Advantage (MA), is an alternative to Original Medicare offered by private insurance companies approved by Medicare. An MA plan must cover everything Parts A and B cover, and usually bundles in extra benefits (often prescription drugs, and frequently dental, vision, or hearing).
Part D helps pay for prescription drugs. It comes either as a stand-alone prescription drug plan (PDP) added to Original Medicare, or built into a Medicare Advantage plan (called an MAPD).
Because Original Medicare doesn’t cover everything, people typically choose one of these approaches: There is no single “best” path — the right fit depends on a person’s budget, preferred doctors, prescriptions, travel habits, and health needs. An agent’s role is to educate so the consumer can make an informed choice.
Retirement & Social Security Assistance, Medicare Savings Program Assistance, Help Applying for your Medicare part A and B, Help delaying your part B if you are still working.
Medicare Twins compares every Texas Medicare option for you and only recommends what fits. Free, no pressure.
Compare your options
Tell me a little about your situation and I’ll compare the Medicare plans available in your Texas county with you — free, and no pressure.
This guide was distilled and fact-checked from licensed-agent training material:
Last reviewed 2026-06-05. Coverage details, costs, and rules change yearly and vary by situation — always confirm current details at Medicare.gov.
Medicare Advantage (MA), also called Part C, is a way to get your Medicare benefits through a private insurance company approved by Medicare, instead of directly from Original Medicare. By law, every MA plan must cover everything Part A and Part B cover, and most go further by adding extra benefits in a single bundled plan.
Medicare Advantage (MA), also called Part C, is a way to get your Medicare benefits through a private insurance company approved by Medicare, instead of directly from Original Medicare. By law, every MA plan must cover everything Part A and Part B cover, and most go further by adding extra benefits in a single bundled plan.
Online booking is taking a moment. Call us and we’ll grab a time together — or start a free quote.
Before you go
No pressure and no plan names — just a plain-English guide plus the offer of a free, no-obligation review with Medicare Twins, licensed Texas agent serving Texas. Leave an email or phone and we’ll send it over.
