Free Guide to Medicare and Medicaid Enrollment 2026

Understanding Medicare: What This Program Covers and How It Works

Medicare is a federal health insurance program primarily designed for people age 65 and older. As of 2025, approximately 68 million Americans are enrolled in Medicare. The program is divided into different parts, each covering specific types of medical services. Learning about these distinctions helps you understand what types of care different parts of Medicare cover.

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Medicare Part A covers hospital insurance, including inpatient hospital stays, skilled nursing facility care, hospice care, and some home health services. When you are admitted to a hospital as an inpatient, Part A helps pay for your room, meals, medications administered in the hospital, and medical supplies. For skilled nursing facilities—facilities that provide specialized medical care after a hospital stay—Part A covers up to 100 days per benefit period, though you may pay a daily coinsurance amount after the first 20 days.

Medicare Part B is medical insurance that covers doctor visits, outpatient care, medical equipment, and preventive services. This includes visits to your primary care doctor, specialists, emergency room visits, and diagnostic tests like X-rays and blood work. Part B also covers preventive services such as annual wellness visits, cancer screenings, and vaccinations, typically at no cost to you.

Medicare Part D covers prescription drugs. This part helps pay for medications you take at home. Different Part D plans cover different drugs, and costs vary depending on which plan you choose. Understanding your prescription drug needs is important when selecting a Part D plan.

Many people also choose Medicare Part C, sometimes called Medicare Advantage. This is an alternative way to receive your Medicare benefits through a private insurance company. Part C plans typically include Parts A, B, and D all together, often with additional coverage like dental or vision care.

Practical takeaway: Write down the types of medical services you currently use—such as doctor visits, hospital stays, prescription medications, or specialist care—to better understand which parts of Medicare would be most relevant to your situation.

Medicaid Explained: State Programs and Who May Receive Coverage

Medicaid is a joint federal and state program that provides health coverage to millions of Americans with lower incomes. Unlike Medicare, which is the same across all states, Medicaid varies significantly from state to state. Each state runs its own Medicaid program within federal guidelines, which means income limits, covered services, and enrollment processes differ depending on where you live. In 2024, approximately 72 million people were enrolled in Medicaid.

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Medicaid covers a broader range of services than Medicare, including doctor visits, hospital care, prescription drugs, mental health services, dental care, and long-term care services such as nursing home care and home care services. Because of this broader coverage, Medicaid is particularly important for people with chronic conditions or those who need extended care services.

To learn about Medicaid coverage in your specific state, you would contact your state's Medicaid office directly. State Medicaid offices maintain websites with information about income thresholds, required documentation, and the types of services covered in your area. Some states use the term "Medicaid," while others use different names—for example, California calls its program Medi-Cal, and New York calls its program Medicaid.

Income limits for Medicaid vary by state and family size. As a general reference, the federal poverty level in 2024 for a single person was approximately $15,000 annually, though many states set Medicaid income limits higher than this amount. Some states have expanded their Medicaid programs to cover adults with incomes up to 138% of the federal poverty level, while other states maintain lower thresholds.

Medicaid also covers services that Medicare does not, including long-term care in nursing homes. This is particularly significant because many older adults eventually need assistance with daily living activities. While Medicare covers skilled nursing care for a limited time after hospitalization, Medicaid can help pay for custodial care—help with activities like bathing, dressing, and eating—in a nursing home over an extended period.

Practical takeaway: Visit your state's Medicaid website or call your state Medicaid office to obtain specific information about income limits, covered services, and how to learn more about the program in your state.

Enrollment Periods and Important Dates for 2026

Understanding enrollment periods is crucial because missing certain windows may affect when your coverage begins or may limit your options. Medicare and Medicaid have specific enrollment periods when you can take action, and the rules differ between the two programs.

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For Medicare, the Initial Enrollment Period begins three months before the month you turn 65 and lasts for seven months total. For example, if you turn 65 in June, your Initial Enrollment Period runs from March through September. During this period, you can enroll in Medicare Part A and Part B. If you do not enroll during your Initial Enrollment Period, you may face a permanent penalty on your Part B premiums for as long as you have Medicare.

The General Enrollment Period for Medicare runs from January 1 through March 31 each year. If you missed your Initial Enrollment Period, you can enroll during the General Enrollment Period, but your coverage will not begin until July 1 of that year, and you may be subject to late enrollment penalties.

The Annual Enrollment Period, also called Open Enrollment, for Medicare runs from October 15 through December 7 each year. During this time, people already enrolled in Medicare can switch their coverage type (for example, from Original Medicare to Medicare Advantage, or vice versa) or change their prescription drug plan. Changes made during this period take effect January 1 of the following year.

Special Enrollment Periods exist for certain life events, such as losing employer-based health coverage, moving to a new state, getting married, or experiencing other qualifying changes. During a Special Enrollment Period, you may be able to make changes outside the regular enrollment windows. These periods typically last 60 days from the qualifying event.

Medicaid enrollment works differently. Most states allow people to apply for Medicaid at any time during the year. However, some states may have waiting lists for certain services, or coverage may not begin until the month following your application submission.

Practical takeaway: Mark your calendar with key dates: your 65th birthday (for Initial Enrollment), October 15 through December 7 (Annual Enrollment for Medicare), and note that Medicaid applications are generally accepted year-round in most states.

Gathering Documentation and Information You Will Need

Having the correct documentation on hand before you begin the enrollment process will make the process more straightforward. Both Medicare and Medicaid ask for similar basic information, though specific requirements may vary by state for Medicaid.

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For Medicare enrollment, you will typically need your Social Security number, birth date, citizenship status, and information about any current health insurance you have. If you are still working and covered by an employer plan, Medicare asks about that coverage. You will also need a mailing address and email address for communications.

For Medicaid, the documentation requirements vary significantly by state. Most states ask for proof of identity, proof of citizenship or immigration status, proof of income, and proof of residency in that state. Income documentation often includes recent pay stubs, tax returns, or a letter from your employer stating your income. If you are self-employed, you may need to provide business income records.

Some people may qualify for Medicaid based on disability or age rather than income. In these cases, you would still need to provide proof of disability (such as a Social Security Disability Insurance award letter) or proof of age (such as a birth certificate).

If you receive Supplemental Security Income (SSI), Social Security Disability Insurance (SSDI), or other government benefits, bring documentation of those benefits. Many states use information from these programs to determine Medicaid coverage.

Asset limits are another consideration for Medicaid in some states. Certain states place limits on the amount of savings or other assets you can have and still receive Medicaid. You may need to provide bank statements or documentation of other assets.

Keep originals and copies of all documents. You may submit copies to Medicaid offices or upload them online, but you should retain originals for your records. Many people find it helpful to create a folder with all relevant documentation organized by category.

Practical takeaway: Create a checklist of documents based on your specific situation