Part A: Hospital Insurance
Part A generally helps cover inpatient hospital care, qualifying skilled nursing facility care, hospice care and certain home health services.
Medicare Made Clear
Medicare Enrollment Guide: When and How to Enroll
Medicare has several enrollment periods, coverage paths and important deadlines. This guide explains the basics in plain English so you can take the right next step with greater confidence.
Call or Text (561) 896-8992Ask a Medicare QuestionNo cost or obligation. Health Palm Beach Insurance Advisors is not affiliated with or endorsed by Medicare or any government agency.
Start With the Medicare Timeline That Applies to You
When you should enroll may depend on your age, Social Security status, current employment, employer coverage and other circumstances. Use this guide as a starting point, then confirm how the rules apply to your situation.
Who Is Eligible for Medicare?
Medicare is generally available to people age 65 or older. Certain people under 65 may also qualify because of a disability, amyotrophic lateral sclerosis (ALS) or end-stage renal disease under Medicare's rules.
Enrollment is not automatic for everyone. Your next step may depend on whether you already receive Social Security or Railroad Retirement Board benefits before becoming eligible.
Understanding the Parts of Medicare
Part B: Medical Insurance
Part B generally helps cover physician services, outpatient care, preventive services, durable medical equipment and other medically necessary services.
Part C: Medicare Advantage
Medicare Advantage is an alternative way to receive Part A and Part B benefits through a Medicare-approved private plan. Plans usually include drug coverage and may offer additional benefits.
Part D: Prescription Drugs
Part D provides prescription-drug coverage through private insurers. Formularies, pharmacy networks and cost sharing vary by plan.
Medicare Supplement Insurance
Medigap works with Original Medicare to help pay certain deductibles, copayments and coinsurance. It is not the same as Medicare Advantage.
Original Medicare
Original Medicare consists of Part A and Part B. A separate Part D plan and Medicare Supplement policy may be added when appropriate and available.
Important Medicare Enrollment Periods
Initial Enrollment Period
Your first Medicare enrollment window generally lasts seven months:
- Three months before the month you turn 65
- The month you turn 65
- Three months after the month you turn 65
Your coverage start date can depend on when you enroll. Some people are enrolled automatically; others must apply through Social Security.
Special Enrollment Period
You may qualify to enroll after age 65 without a late penalty if you delayed Part B while covered by a qualifying employer group plan based on your current employment or your spouse's current employment. Timing and employer-size rules matter.
General Enrollment Period
January 1 through March 31
This period may be available if you missed your Initial Enrollment Period and do not qualify for a Special Enrollment Period. A late-enrollment penalty may apply.
Annual Enrollment Period
October 15 through December 7
People who already have Medicare can generally change Medicare Advantage or Part D coverage. Changes generally begin January 1.
Medicare Advantage Open Enrollment
January 1 through March 31
Someone already enrolled in Medicare Advantage may generally make one change to another Medicare Advantage plan or return to Original Medicare.
Other Special Opportunities
Certain moves, coverage losses, plan changes, emergencies and other qualifying circumstances may create an additional enrollment opportunity. Eligibility depends on the specific event.
Working Past Age 65
You may be able to delay Medicare Part B without a late-enrollment penalty when you have qualifying group health coverage based on your current employment or your spouse's current employment. The right decision can depend on:
- The size of the employer and which coverage pays first
- Whether coverage is based on current employment
- The cost and benefits of the employer plan
- Prescription-drug coverage
- Coverage needs for a spouse or dependents
- Health Savings Account contribution rules
Important: COBRA and retiree coverage are generally not treated the same as active-employment coverage for delaying Part B. Waiting until COBRA ends may cause a coverage gap or possible late-enrollment penalty. Confirm your individual situation before delaying Medicare.
Original Medicare or Medicare Advantage?
There is no universal winner. The better direction depends on your healthcare needs, preferences and the options available in your service area.
Original Medicare
- Includes Part A and Part B
- Access to providers nationwide who accept Medicare
- May be paired with a separate Part D plan
- May be paired with Medicare Supplement coverage
- No annual medical out-of-pocket maximum by itself
Medicare Advantage
- Part A and Part B benefits through a private Medicare-approved plan
- Usually includes Part D drug coverage
- May include additional benefits
- Provider networks and prior authorization may apply
- Includes an annual limit for covered Part A and Part B expenses
Consider more than the premium. Review your doctors, hospitals, prescriptions, pharmacies, travel needs, benefits and potential out-of-pocket expenses.
What to Gather Before Comparing Coverage
- Your Medicare card
- Current insurance information
- Doctors, specialists and preferred hospitals
- Prescription names, dosages and frequency
- Preferred pharmacies
- Employer, retiree or COBRA information
- Medicaid, Extra Help or other assistance information
- Travel or seasonal-residence needs
Protect your privacy: healthcare information should be reviewed securely, not entered into a general website contact form.
Common Medicare Enrollment Mistakes
- Assuming Medicare enrollment will happen automatically
- Delaying Part B without confirming that current coverage qualifies
- Believing COBRA provides the same protection as active-employment coverage
- Missing an enrollment deadline
- Selecting coverage based only on the monthly premium
- Failing to verify doctors, hospitals, medications and pharmacies
- Confusing Medicare Advantage with Medicare Supplement coverage
- Assuming Medigap enrollment rules are the same as Medicare Advantage rules
- Going without creditable drug coverage without understanding the possible penalty
Frequently Asked Medicare Questions
Is Medicare enrollment automatic?
Some people are enrolled automatically, while others must actively enroll through Social Security. It often depends on whether you receive Social Security or Railroad Retirement Board benefits before becoming eligible.
Do I need Medicare if I am still working at 65?
Not always, but do not delay Medicare without reviewing your employer coverage. Employer size, current-employment status, prescription coverage and coordination rules can affect the decision.
Does COBRA let me delay Medicare Part B?
COBRA generally does not provide the same protection as qualifying coverage based on current employment. Delaying Part B while relying on COBRA can potentially cause a coverage gap or late-enrollment penalty.
When can I change Medicare plans?
The opportunity depends on your current coverage and circumstances. Annual Enrollment runs October 15 through December 7. Other opportunities can include Medicare Advantage Open Enrollment or a qualifying Special Enrollment Period.
What is the difference between Medicare Advantage and Medigap?
Medicare Advantage is an alternative way to receive Medicare benefits through a private Medicare-approved plan. Medigap supplements Original Medicare by helping pay certain out-of-pocket costs. They do not work together.
Do I need Part D if I do not take prescriptions?
Going without creditable drug coverage may result in a future Part D late-enrollment penalty. It can still be worth reviewing available coverage even if you currently take few or no medications.
Does Medicare cover dental, vision and hearing?
Original Medicare generally does not cover routine dental care, routine eye examinations for glasses or hearing aids. Some Medicare Advantage plans may include additional benefits, subject to plan rules and limitations.
Local Medicare Guidance in Palm Beach County
Health Palm Beach Insurance Advisors helps clients consider their doctors, prescriptions, preferred hospitals, travel needs, budget and available coverage options. We serve Palm Beach County, including Boynton Beach, Delray Beach, Boca Raton, Lake Worth Beach and West Palm Beach, as well as clients in other areas where licensed.
Appointments are available by telephone, video and in person when available.
Get Help With Your Medicare Enrollment
Whether you are approaching 65, leaving employer coverage or reviewing an existing plan, we can help you understand the next step.
Call or Text (561) 896-8992Email Health Palm BeachLast reviewed: October 2026. This page provides general educational information and is not legal, tax or medical advice. Health Palm Beach Insurance Advisors, LLC is an independent insurance agency and is not affiliated with or endorsed by Medicare or any government agency. We do not offer every plan available in your area. Please contact Medicare.gov, 1-800-MEDICARE or your local State Health Insurance Assistance Program for information about all available options. Plan availability, eligibility, benefits, premiums and cost sharing vary by plan, service area and individual circumstances.