Turning 65 is a good time to make a Medicare checklist. For most people, Medicare eligibility starts around age 65, but the right enrollment steps depend on whether you are already receiving Social Security or Railroad Retirement benefits and whether you have current employer coverage.
This guide explains the general rules. It is educational information, not personalized insurance or tax advice.
Start with your Initial Enrollment Period
Your Medicare Initial Enrollment Period (IEP) is a 7-month window. It generally begins 3 months before the month you turn 65, includes your birthday month, and ends 3 months after it. Medicare explains the timing and coverage start dates in its official enrollment guidance.
If your birthday is on the first day of the month, Medicare generally treats your eligibility differently for coverage-start purposes. Check your exact dates before applying rather than relying on a general calendar rule.
Will Medicare enroll you automatically?
You may be automatically enrolled in Part A and Part B if you are already receiving Social Security retirement benefits when you become eligible. The Railroad Retirement Board handles enrollment for people receiving Railroad Retirement benefits. Medicare or the responsible benefits agency should send information about your coverage and Medicare card.
If you are not receiving retirement benefits, you generally need to sign up yourself. The Social Security Administration’s Medicare page explains how to apply. People with Railroad Retirement benefits should follow the enrollment instructions provided by the Railroad Retirement Board.
Review the card and enrollment notice when it arrives. If you do not want Part B because you have qualifying coverage through your or your spouse’s current employment, follow the instructions for declining or delaying Part B. Do not assume that retiree coverage, COBRA, or an individual Marketplace plan creates the same protection as current-employment coverage.
How to sign up if you must apply
If you need to enroll during your IEP, use Social Security’s official application process:
- Apply online through Social Security’s Medicare enrollment information.
- Call Social Security at 1-800-772-1213 if you need help or cannot use the online process.
- Contact a Social Security office if you need an in-person option.
- If Railroad Retirement benefits apply to you, contact the Railroad Retirement Board instead.
Save your confirmation number, application records, and any correspondence. If you mail documents, keep copies and proof of delivery. These records can help establish when you applied if a processing problem occurs.
What about Part A and Part B?
Medicare Part A helps cover inpatient hospital, skilled nursing facility, hospice, and some home health care. Part B helps cover medically necessary doctors’ services, outpatient care, and preventive services. Most people do not pay a Part A premium because they or a spouse paid Medicare taxes for enough time, but Part A and Part B have different costs and enrollment consequences. See Medicare’s current costs overview.
Part B generally has a monthly premium. If you delay Part B without qualifying coverage, you may face a late-enrollment penalty and a gap before coverage begins. Medicare’s Part B costs and penalty information should be checked for the rules that apply to you.
If you or your spouse are still working
Do not make an enrollment decision based only on the phrase “I have employer insurance.” Ask the employer’s benefits administrator:
- Is the coverage based on current employment by you or your spouse?
- How many employees does the employer have?
- Will the employer plan pay primary or secondary to Medicare?
- Does the plan require Part A, Part B, or both?
- What happens to an HSA if you enroll in Medicare?
Medicare’s working past 65 guidance explains when an 8-month Special Enrollment Period may apply after current employment or employer coverage ends. The rules can differ for small-employer coverage, retiree coverage, COBRA, federal coverage, and other insurance.
Do not forget prescription coverage
If you choose Original Medicare, you may consider a stand-alone Part D prescription drug plan. Before delaying Part D, confirm that your other drug coverage is creditable. After your Initial Enrollment Period ends, going 63 or more consecutive days without Part D or other creditable prescription drug coverage can lead to a Part D late-enrollment penalty later. Medicare explains the Part D late-enrollment penalty.
After Original Medicare: compare your coverage choices
Original Medicare does not pay every covered cost and generally does not include routine dental, hearing, or vision coverage. After enrolling in Part A and Part B, you can compare options such as:
- Original Medicare with a stand-alone Part D plan and, if desired, a Medigap policy.
- A Medicare Advantage plan that covers Part A and Part B services through a private Medicare-approved plan and may include prescription coverage.
If you are considering Medigap, your one-time Medigap Open Enrollment Period generally starts when you are 65 or older and enrolled in Part B. During that period, you have important federal protections. See Medicare’s Medigap enrollment guidance.
Before you act
Use Medicare.gov, your plan documents, your employer benefits office, SHIP, or a licensed professional to confirm the rules that apply to you. Do not delay enrollment or change coverage based on this article alone.
Suggested internal links
These are suggested links only until the Ashford Insurance blog exists:
- Suggested: Medicare initial enrollment period
- Suggested: Medicare and employer health insurance
- Suggested: Medicare Part D late-enrollment penalty