What Does Medicare Cover in 2026? A Complete Guide to Parts A-D, Claims, and Coordination

Published: 8 June 2026
Reading Time: 14 minutes
Author: Billy Jordan, President of The Jordan Insurance Agency

What Does Medicare Cover in 2026?

In 2026, Medicare provides foundational health insurance for Americans 65 and older and certain younger individuals with disabilities. It consists of four parts: Part A covers inpatient hospital stays; Part B covers outpatient medical care; Part D covers prescription drugs; and Part C, also known as Medicare Advantage, offers an all-in-one private alternative to Original Medicare.

Key Takeaways for 2026:

• Medicare Part A: Covers inpatient hospital stays and skilled nursing facility care.
• Medicare Part B: Includes outpatient care, preventive services, and certain home healthcare.
• Medicare Part D: Offers prescription drug coverage through private plans.
• Medicare Part C (Advantage Plans): Bundles Parts A, B, and most often D, with additional benefits like vision and dental.
• Medicare Beneficiary Identifier (MBI): Critical for claims processing; ensure it is protected.
• Not Covered: Routine dental, vision, and hearing services, as well as long-term care and cosmetic surgery.
• Coordination with Other Insurance: Important to understand how Medicare interacts with other health insurance plans.

This guide is authored by Billy Jordan, President of The Jordan Insurance Agency. With over 20 years of experience, Billy specializes in simplifying complex insurance topics, helping individuals and families in Charlotte and across 21 states find the best Medicare solutions to protect their health and finances.

Understanding the Four Parts of Medicare: A, B, C, and D

Original Medicare consists of Parts A and B, which are government-administered programs designed to cover a wide range of healthcare needs. Below is a comparison table that outlines the four parts of Medicare, providing a clear understanding of their distinct roles, coverages, and costs for this year.

Key Differences Between Original Medicare (A & B) and Medicare Advantage (Part C):

In Original Medicare, beneficiaries are covered directly under the federal program and might need supplemental insurance to cover out-of-pocket costs or excluded services such as vision or dental. Medicare Advantage (Part C), however, is an alternative approach wherein private companies provide the same A and B benefits, often with integrated Part D and additional lifestyle benefits. These plans might offer lower out-of-pocket costs but can include network restrictions.

Understanding how these parts function individually and collectively can help beneficiaries make informed decisions suited to their health needs and financial situations.

What Medicare Typically Doesn't Cover (And Why It Matters)

When navigating Medicare coverage in 2026, it's crucial to understand the services and items that Parts A and B don't cover. These gaps can lead to unexpected expenses if you're not prepared. Here's a breakdown of some key exclusions:

• Long-Term Care: Medicare does not cover custodial care in nursing homes for individuals who need assistance with daily living activities. This is because Medicare focuses on acute care rather than prolonged custodial needs.
• Most Dental Care: Routine dental services like cleanings, fillings, and dentures are not covered. Only certain medically necessary dental services are exceptions.
• Vision and Eye Exams: Medicare excludes routine eye exams and eyeglasses, except after cataract surgery, where some coverage is provided.
• Hearing Aids and Exams: Routine exams and hearing aids are left uncovered, making it necessary to seek additional coverage.
• Cosmetic Surgery: Non-essential procedures for appearance enhancement are not included unless they are required due to an accidental injury or to improve the function of a malformed body part.

Why These Exclusions Exist: Medicare's design is to provide coverage for acute, medically necessary services rather than routine or elective care. Understanding these exclusions helps beneficiaries consider supplementary policies like Medicare Supplement (Medigap) and Medicare Advantage plans, both of which can fill these gaps more effectively than Original Medicare alone.

Billy's Expert Tip: Understanding Medicare's 'coverage gap' is essential. It's why options like Medigap and Medicare Advantage plans exist—to offer a financial safety net where Original Medicare doesn't.

Your Medicare Claim Number (MBI) and the Claims Process Explained

In the realm of health insurance, your Medicare Beneficiary Identifier (MBI) is crucial. This unique 11-character ID is composed of a mix of numbers and uppercase letters, excluding S, L, O, I, B, and Z. It was introduced to replace the old Social Security-based number, enhancing security and reducing the risk of identity theft. The MBI helps the Centers for Medicare & Medicaid Services (CMS) efficiently manage claims.

The claims process predominantly begins with your healthcare provider. Most healthcare providers file Medicare claims on behalf of patients directly to CMS, which is standard for Medicare Parts A and B. In some instances, such as visiting a provider who doesn't accept Medicare assignments, you'll need to file your own claim using a special form, CMS-1490S.

To track your claims, Medicare sends a Medicare Summary Notice (MSN) every six months if you've used services covered by Parts A and B. This is an important record showing the services billed, the amount Medicare paid, and any balance that might be your responsibility. Remember, it's a notice, not a bill, but crucial for tracking deductibles and out-of-pocket costs over the year.

Understanding your MBI and the claims process ensures your healthcare transactions are streamlined and secure in 2026.## Coordinating Medicare With Your Other Health Insurance

Coordination of Benefits is an insurance mechanism designed to help determine which health insurance plan will pay first, often referred to as the "primary payer," and which will pay second, known as the "secondary payer." This hierarchy prevents overpayment and ensures that each plan covers its appropriate share of the costs.

Let's explore some common scenarios where understanding how Medicare coordinates with other insurances becomes invaluable:

Scenario 1: Working Past 65 with Employer Coverage

Many individuals remain employed after turning 65, bringing into question how their employer group health plan coordinates with Medicare. When you work for a company with 20 or more employees, your employer's plan typically becomes the primary payer, while Medicare acts as the secondary payer. This means your employer's insurance pays first for your medical expenses. On the other hand, if you work for a small organization with fewer than 20 employees, Medicare will often serve as your primary payer.

Scenario 2: Retiree or COBRA Coverage

Retiree insurance plans and COBRA coverage usually position Medicare as the primary insurance. If you're retired, Medicare typically pays before any other supplemental retiree insurance coverage you may have. Similarly, if you're on COBRA—a health benefit option for those who have lost their jobs—Medicare becomes your primary payer once you are eligible for it. This structure is pivotal because decisions on when to enroll in Medicare can significantly affect your healthcare expenses.

Scenario 3: VA Benefits or TRICARE

VA benefits and TRICARE do not generally coordinate with Medicare, presenting a unique decision point. For those veterans eligible for both VA benefits and Medicare, it’s necessary to decide which system to use on a case-by-case basis since care at a VA facility may not be covered by Medicare. TRICARE beneficiaries with Medicare automatically transition to TRICARE For Life, where Medicare covers the cost first, followed by TRICARE picking up remaining eligible expenses.

In our Charlotte, NC agency, we often encounter clients navigating these intricate rules. We regularly guide them through their specific circumstances, ensuring they understand who pays first and how to avoid potential pitfalls.

From Our Experience: Many of our clients turning 65 while still working are confused about whether to enroll in Part B. We always start by analyzing their employer's plan first to avoid costly late enrollment penalties.

This approach illustrates the importance of professional guidance in choosing the right insurance mix for optimal financial protection.## Your Medicare FAQs for 2026 Answered

In this section, we tackle common questions about Medicare to provide clear, direct answers based on the most current information for 2026. These questions and answers are designed to help beneficiaries better understand their Medicare options.

Q1: When is the Medicare enrollment period for 2026?

The Initial Enrollment Period (IEP) for Medicare typically begins three months before your 65th birthday month, includes your birthday month, and ends three months after. The General Enrollment Period for Medicare in 2026 runs from January 1 to March 31. Any changes made during this period will take effect the following month. Additionally, there are Special Enrollment Periods for those who experience certain life events, such as losing other health coverage.

Q2: Are there penalties if I don't sign up for Medicare on time?

Yes, there are lifetime penalties if you sign up late for Medicare Part B or Part D. The Part B late enrollment penalty is 10% of the standard Part B premium for each full 12-month period you delayed enrollment. For Part D, the penalty is 1% of the 'national base beneficiary premium' for every month you were without coverage.

Q3: How is a Medicare Advantage Plan (Part C) different from a Medigap plan?

Medicare Advantage (Part C) acts as a replacement for Original Medicare, offering bundled coverage through private insurers, often including additional benefits like vision and dental. In contrast, Medigap supplements Original Medicare by covering certain out-of-pocket costs not paid by Medicare Parts A and B. It's important to note that you cannot have both a Medicare Advantage Plan and a Medigap policy.

Q4: Where can I get unbiased help understanding my Medicare options?

Independent brokers like The Jordan Insurance Agency offer personalized, no-cost consultations. As unbiased advisors not tied to any one insurer, they provide guidance tailored to your needs, helping you navigate your Medicare choices with confidence.

From Our Experience: Many of our clients turning 65 while still working are confused about whether to enroll in Part B. We always start by analyzing their employer's plan first to avoid costly late enrollment penalties.## Take Control of Your Medicare Journey in 2026

Medicare remains a vital program with numerous components, each serving a unique purpose in ensuring healthcare for seniors and eligible individuals with disabilities. Understanding what Medicare covers—and more importantly, what it doesn’t cover—forms the foundation of making smart, informed decisions about your health insurance needs. Although navigating Medicare might seem complex, help is always available. You don't have to go it alone.

For residents in Charlotte, NC, and the surrounding communities, The Jordan Insurance Agency stands ready to assist. I'm Billy Jordan, and my team and I are dedicated to providing personalized consultations. We offer a no-obligation review of your situation to help find a 2026 Medicare plan tailored to your needs. To start customizing your Medicare coverage, reach out to us at The Jordan Insurance Agency.