Turning 65? Start your Medicare plan with clarity.

For most people, the Initial Enrollment Period is the first opportunity to sign up for Medicare. It lasts seven months: the three months before the month you turn 65, your birthday month, and the three months after it.

Starting early can help coverage begin sooner. The timing of your effective date can depend on when you enroll, so it is worth reviewing your situation before your birthday month arrives.

If you are already receiving Social Security or Railroad Retirement Board benefits before you turn 65, you may be enrolled automatically in Medicare Part A and Part B. If you are not receiving those benefits, you will generally need to take action to enroll through Social Security.

Automatic enrollment is not a substitute for reviewing your choices. You may still need to decide how to handle Part B, prescription drug coverage, and additional coverage options.

Medicare Part A generally helps cover inpatient hospital care and certain facility or home health services. Medicare Part B generally helps cover outpatient care, doctor visits, preventive services, and medical equipment.

Original Medicare is Part A and Part B. Many people also consider a standalone Part D prescription drug plan and, where appropriate, a Medicare Supplement policy. Medicare Advantage is another way to receive Medicare-covered benefits through a private plan.

Whether you should enroll in Part B when you turn 65 can depend on details such as whether you or your spouse are actively working, the size of the employer, and whether the employer coverage is considered creditable. Do not assume that every employer plan works the same way with Medicare.

COBRA and retiree coverage can follow different rules from active employer coverage. Before delaying Part B or Part D, confirm how your current coverage coordinates with Medicare and whether a Special Enrollment Period may apply when that coverage ends.

Some people who delay Part B or Part D without qualifying coverage can face late-enrollment penalties. The rules depend on the type of coverage you had and the reason enrollment was delayed.

Because the consequences can be long-lasting, confirm your enrollment window and keep records of employer coverage when it applies. A Medicare professional can help you identify the questions to take to Social Security, your employer benefits office, or Medicare.

With Original Medicare, you can consider a Medicare Supplement policy, also called Medigap, to help with certain out-of-pocket costs, along with a Part D plan for prescription drugs. Medicare Supplement availability and pricing can vary, and the best time to buy may be tied to your Medigap Open Enrollment Period.

With Medicare Advantage, you receive Medicare-covered benefits through a private plan. Networks, plan rules, drug formularies, premiums, and out-of-pocket costs can vary by plan and location. Compare the details that matter to your care rather than choosing based on one feature alone.

If you contribute to or receive contributions to a Health Savings Account, enrolling in Medicare can affect HSA eligibility. The right timing can depend on your work status, coverage, and when Medicare coverage begins.

A spouse who is not yet 65 may need to keep separate health coverage. Your Medicare enrollment does not automatically solve a younger spouse’s insurance needs, so review the household impact before changing employer coverage.

Before selecting a plan, check whether your doctors, hospitals, specialists, and preferred pharmacies fit the coverage you are considering. Make a current prescription list and review how each medication is covered, including formulary rules and pharmacy options.