Definitions of common Medicare terms

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Medicare language can be tricky. You might recognize a few terms from other types of insurance, like copay and deductible, but many are unique to Medicare.

If you're new to Medicare—or simply brushing up—knowledge is key. Here are some common terms to help you choose the right plan or get the most out of your current plan. 

Annual Election Period (AEP)

Also called the Medicare Open Enrollment Period, the Annual Election Period (AEP) begins Oct. 15 and ends Dec. 7 each year. During AEP, you can enroll in, disenroll from or change your Medicare Advantage plan or your prescription drug plan (PDP). You can also return to Original Medicare. Elections made during AEP are effective Jan. 1 of the following year. 

Annual Notice of Changes (ANOC)

This notice is sent each September by Medicare Advantage plans to their members notifying them of any changes in their coverage, costs or service in the coming plan year.

Claim 

Another word for a claim is a bill. Your hospital or doctor’s office will send this bill to your insurance as a request for payment for services provided to you. After your insurance handles your claim, you'll get an Explanation of Benefits (EOB) showing what was paid and what you may still owe.  

Claim payment 

If you paid for services from a provider, you can ask your insurance to reimburse you. Check the details of your plan or contact your insurance company to ask about claim payments.  

Coinsurance

Coinsurance is a percentage of your medical and drug costs that you may be required to pay as your share of costs for medical services or supplies (for example, 20% of the cost of a prescription drug).

Copayment

This is a specific dollar amount that you may be required to pay as your share of the cost for medical services or supplies (for example, a $10 copay for a doctor visit).

Creditable prescription drug coverage

This is coverage from another source (such as employer benefits) that is equal to or better than Medicare Part D prescription drug coverage.

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Deductible

Your deductible is the amount you pay for medical services or prescription drugs in a plan year before your plan starts to pay any of the costs. Check your plan coverage details to see what deductibles you have. These range from medical care to prescription drugs.

Evidence of Coverage (EOC)

This document lists in detail your Medicare plan’s benefits and costs.

Drug List

Also called a formulary, a drug list details the specific drugs covered by a prescription drug plan. It’s often divided into sections, or tiers, based on the amount each plan will pay for the drugs in that group.

Health maintenance organization (HMO)

An HMO is a type of health insurance plan where a primary care physician arranges your healthcare using providers in the plan’s network.

Initial Coverage Election Period (ICEP)

The ICEP is a 7-month period when a Medicare-eligible person can sign up for Medicare for the first time. It begins 3 months before your 65th birthday, includes your birthday month, and ends 3 months after.

Medicaid

Jointly funded by federal and state dollars, Medicaid provides health coverage for certain low-income people, and may include pregnant women, the elderly, and those with disabilities.

Medicare Advantage

See “Medicare Part C.”

Medicare Part A

Part of Original Medicare, Medicare Part A helps cover inpatient hospital stays, care in a skilled nursing facility, hospice care and some home healthcare.

Medicare Part B

Part of Original Medicare, Medicare Part B helps cover certain doctors' and preventive services, outpatient care and medical supplies.

Medicare Part C – Medicare Advantage

These plans are offered by private insurers approved by Medicare. By law, Medicare Advantage plans must offer, at minimum, the same benefits as Original Medicare Part A and Part B. Most Medicare Advantage plans also include coverage for prescription drugs, and many include some coverage for dental, vision and hearing care, as well.

Medicare Part D

Medicare Part D is insurance for prescription drugs sold through private insurance companies. Part D can be offered in 2 ways:

  1. As Part D coverage combined with a Medicare Advantage (MA) plan
  2. As a stand-alone prescription drug plan (PDP)

Medicare Supplement insurance

Also called “Medigap” insurance, Medicare Supplement insurance is sold by private insurance companies to help cover out-of-pocket costs not paid by Original Medicare, such as copays and deductibles. It does not include coverage for Part D prescription drugs.

Network

A network is a group of healthcare providers who have agreed to provide care based on a plan’s terms and conditions. These providers include doctors, hospitals and other healthcare professionals and facilities. With most plans, you’ll save money by using an in-network provider.

Medicare Advantage Open Enrollment Period (OEP)

This option is for people enrolled in Medicare Advantage only. The Medicare Advantage Open Enrollment Period runs each year from January 1 to March 31. During this time, Medicare Advantage members can switch to another Medicare Advantage plan or return to Original Medicare.

Original Medicare

Also called Traditional Medicare, Original Medicare consists of Medicare Part A (hospital) and Part B (medical) coverage. It is offered directly by the federal government.

Out-of-pocket maximum 

Many insurance plans have a maximum amount that you’ll be required to pay out-of-pocket. Deductibles and copayment go toward this out-of-pocket maximum. Once the amount you’ve paid reaches the out-of-pocket maximum, your plan pays 100% of covered services for the rest of the plan year. 

Payment to providers 

Ask your doctor or hospital whether they accept cash, check, or credit card. Pay these providers for medical care or prescription drugs in the method they prefer. In addition, if you have a health savings account (HSA), you can use it to make payments to providers.

Preferred provider organization (PPO)

A PPO is a type of health insurance plan that gives you the freedom to choose your own doctors and hospitals. Your out-of-pocket costs are usually lower if you choose healthcare providers that are in the plan’s network.

Premium

The premium is the amount you are required to pay each month to Medicare or your private insurer for your healthcare coverage.

Provider

This is anyone who provides you with medical goods or services, such as a doctor, nurse, hospital or durable medical equipment provider.

Special Needs Plan (SNP)

These Medicare Advantage Special Needs Plans plans include all Medicare Part A, Part B and Part D benefits and may include additional benefits, such as support for a chronic condition or services that may be helpful to someone who has both Medicare and Medicaid. To qualify for an SNP, you must have Medicare Part A and Part B and meet 1 of the following conditions: (a) you have a chronic illness that is verified by a doctor—C-SNP, (b) you receive Medicaid assistance from the state—D-SNP, or (c) you live in a long-term care facility—I-SNP.

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