What It Is

Understanding Medicare and How It Works

Medicare is the federal health insurance program for people age 65 and older, as well as certain younger individuals with qualifying disabilities or conditions. It is administered by the federal government but delivered through a combination of government-run programs and private insurance carriers.

Medicare is not a single plan. It is a framework made up of different parts, each covering a different category of healthcare. Understanding how the parts work together is the first step to building a complete and cost-effective coverage strategy.

Most people are eligible for Medicare at age 65 regardless of their income or health history. Enrollment happens through the Social Security Administration, and there are specific windows during which you can sign up, change plans, or add coverage without penalty.

A
Hospital

Inpatient care, skilled nursing, hospice

B
Medical

Doctor visits, outpatient, preventive care

C
Advantage

All-in-one private plan alternative

D
Prescription

Drug coverage through private carriers

Who Qualifies

Medicare Eligibility at a Glance

Most Americans become eligible for Medicare at age 65. If you or your spouse paid Medicare taxes for at least 10 years, you qualify for premium-free Part A. Part B requires a monthly premium for most enrollees.

You may also qualify for Medicare before age 65 if you have received Social Security Disability Insurance (SSDI) for 24 months, have been diagnosed with End-Stage Renal Disease (ESRD), or have been diagnosed with ALS.

Medicare does not automatically cover everything. There are deductibles, copays, and coverage gaps, particularly for prescription drugs, dental, vision, and hearing. Supplemental coverage options exist specifically to fill those gaps and give you more predictable out-of-pocket costs.

Navigating all of this on your own is possible, but it is easy to make choices during enrollment that cost more in the long run. Working with a licensed Medicare advisor costs you nothing — agents are compensated by the carriers, not by you.

Your Options

Medicare Plan Types Explained

Each Medicare plan type serves a different need. The right choice depends on your health, your preferred doctors, your budget, and how much flexibility you want in your coverage.

Parts A + B

Original Medicare

The foundation of Medicare coverage, offered directly by the federal government. Part A covers hospital care and Part B covers outpatient medical services. Together they form the base that all other Medicare plans build on.

  • Inpatient hospital stays and skilled nursing facility care
  • Doctor visits, outpatient procedures, and lab work
  • Durable medical equipment and home health services
  • No network restrictions — see any provider that accepts Medicare
  • Does not cover prescription drugs, dental, vision, or hearing

Parts C

Medicare Advantage

An all-in-one alternative to Original Medicare offered by private insurance carriers. Medicare Advantage plans must cover everything Original Medicare covers and typically include additional benefits not available through the government program.

  • Combines Parts A, B, and usually D into a single plan
  • Often includes dental, vision, hearing, and fitness benefits
  • May have lower out-of-pocket costs than Original Medicare
  • Uses provider networks (HMO or PPO structures)
  • Plan options and costs vary significantly by carrier and location

Supplemental

Medicare Supplement (Medigap)

Sold by private insurance companies to fill the cost gaps in Original Medicare. A Medigap policy helps pay for out-of-pocket expenses like deductibles, copayments, and coinsurance that Medicare does not cover.

  • Covers Medicare cost-sharing gaps including deductibles and copays
  • Works alongside Original Medicare, not as a replacement
  • Standardized plans labeled A through N with defined benefits
  • Accepted by any provider that accepts Medicare nationwide
  • Does not include prescription drug coverage — requires Part D

Part D

Medicare Part D

Standalone prescription drug coverage added to Original Medicare or a Medigap plan. Part D plans are offered by private carriers and cover a wide range of prescription medications through a formulary of covered drugs.

  • Covers generic, brand-name, and specialty prescription drugs
  • Each plan has its own formulary — drug lists vary by carrier
  • Premiums, deductibles, and copays differ by plan
  • Late enrollment penalty applies if you delay without creditable coverage
  • Plans can be changed annually during open enrollment
Enrollment Windows

When You Can Enroll in Medicare

Medicare enrollment is time-sensitive. Missing a window can result in gaps in coverage or permanent late enrollment penalties. Understanding when you can sign up is essential to making the right decision at the right time.

Initial Enrollment Period

Your 7-Month Window Around Your 65th Birthday
The Initial Enrollment Period begins three months before the month you turn 65, includes your birthday month, and extends three months after. This is your first opportunity to enroll in Parts A, B, C, and D without penalty.

Special Enrollment Period

Triggered by Qualifying Life Events
If you delay Medicare enrollment because you have employer-sponsored coverage, you are entitled to a Special Enrollment Period when that coverage ends. This allows you to enroll without penalty for up to 8 months after losing employer coverage.

Open Enrollment Period

October 15 Through December 7 Each Year
The Annual Open Enrollment Period runs each fall and allows anyone with Medicare to switch between Original Medicare, Medicare Advantage, and Part D plans. Changes made during this period take effect January 1 of the following year.

General Enrollment Period

January 1 Through March 31 for Late Enrollees
If you missed your Initial Enrollment Period and do not qualify for a Special Enrollment Period, the General Enrollment Period from January through March allows you to sign up — though late enrollment penalties may apply to your Part B and Part D premiums.

Understanding Costs

What You Pay With Medicare

Medicare costs are not one-size-fits-all. What you pay depends on which parts you are enrolled in, your income, your plan choices, and how often you use healthcare services. Here is a breakdown of the key cost components to understand.

Premiums

Most people pay no premium for Part A if they or their spouse paid Medicare taxes for 10+ years. Part B has a standard monthly premium. Part C and D premiums vary widely by carrier and plan design.

Deductibles
Original Medicare has separate deductibles for Part A (per benefit period) and Part B (annual). Medicare Advantage plans set their own deductibles. Medigap plans can cover these costs depending on the plan letter.
Copays and Coinsurance

After meeting a deductible, you typically pay a portion of costs through copays or coinsurance. Original Medicare Part B coinsurance is 20% with no out-of-pocket maximum, which is one reason many people add Medigap coverage.

Out-of-Pocket Maximum
Original Medicare has no out-of-pocket cap, meaning costs can be unlimited in a catastrophic year. Medicare Advantage plans are required to have an annual out-of-pocket maximum, providing a financial ceiling on what you can spend.
IRMAA Surcharges
Higher-income enrollees pay more for Part B and Part D through Income-Related Monthly Adjustment Amounts (IRMAA). These surcharges are based on income from two years prior and are reassessed annually.
Late Enrollment Penalties
Delaying enrollment in Part B or Part D without qualifying creditable coverage results in permanent premium surcharges that increase the longer you wait. Understanding and avoiding these penalties is one of the most important reasons to work with a licensed advisor.

Why Work With BCG Advisors

Independent Guidance That Costs You Nothing

Medicare plan options can be overwhelming. Between Original Medicare, Advantage plans, Medigap supplements, and Part D drug plans, there are hundreds of combinations to consider — and the right answer is different for every person.

As an independent agency, BCG Advisors is not tied to a single carrier. We compare plans across all available options in your area and help you choose coverage based on your specific doctors, prescriptions, and budget — not based on which carrier pays us more.

Our Medicare advisors are licensed, experienced, and available throughout the year — not just during open enrollment. Whether you are enrolling for the first time or reconsidering your current plan, we are here to help you make a confident, informed decision.

  • No cost to you — advisors are compensated by carriers, not enrollees
  • Access to plans from multiple carriers in your area
  • Guidance specific to your doctors, prescriptions, and health needs
  • Help avoiding late enrollment penalties and coverage gaps
  • Ongoing support after enrollment for questions, changes, and claims
  • Annual plan review to make sure your coverage still fits as things change
Important to Know

Using an Agent Does Not Change Your Plan Cost

One of the most common misconceptions about Medicare is that working with an agent or broker makes the plan more expensive. It does not. Medicare plans are priced the same whether you enroll through a carrier directly, through Medicare.gov, or through a licensed agent.

The difference is that an agent brings expertise, comparison shopping across carriers, and ongoing service that you would not get by enrolling on your own. You get the same plan at the same price — with someone in your corner who knows the details.

BCG Advisors is licensed to advise on Medicare in the states we serve. If you have questions about plan availability in your area, contact us directly and we will let you know how we can help.

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We do not offer every plan available in your area. Currently we represent multiple organizations which offer various medicare products in your area. Please contact Medicare.gov, 1-800-MEDICARE, or your local State Health Insurance Assistance Program (SHIP) to get information on all of your options. BCG Advisors is not affiliated with or endorsed by the U.S. government or the federal Medicare program.