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What Do I Need to Know Before Enrolling in a Medicare Supplement?

Confused about Medicare and Medicare Supplements? You’re not alone. Shopping for a Medicare Supplement plan is no easy task. If you go it alone, trying to understand what Medicare Parts A & B cover, what different Medicare Supplement plan letters cover, which plan is best for you, and how to get the best price on your selected plan can be a frustrating project.

Like tens of thousands of others before you, trust GoMedigap to walk you through the process. This guide will be a good start in helping you understand the shopping process.

We offer plans from such companies as Aetna, Cigna, Mutual of Omaha and many others. Because of our ability to help our clients make an educated decision in a few minutes, we’ve earned 5-star or A+ ratings on many every review sites.

How & When Do I Enroll in Medicare Parts A & B?

Within 3-6 months of turning 65, you should receive a large envelope from the Social Security Administration with information about your Medicare Part A & Part B coverage (Original Medicare). In this envelope, you’ll find a thicker sheet of paper which includes your Medicare ID card on one corner of the page. It has perforated edges to allow you to detach it from the page. It is thick stock paper and is your permanent ID. You won’t receive a plastic ID card.

If you or your spouse worked at least 40 quarters in the United States, you should automatically be enrolled in Medicare Part A (Hospital) coverage. Your card should reflect your Medicare Part A start date as the 1st of the month in which you turn 65. If you were born on the first of the month, the start date will be the first of the month prior to your birthday.

Medicare Part B (Outpatient) coverage is elective coverage. So, you don’t need to take the coverage if you prefer not to do so. Though, it makes sense if you would like to have coverage for medical services received outside of a hospital setting. It’s important to note that if you wait to enroll in Part B, your premium could be 10% higher for every 12-month period that you were eligible for Part B but did not sign up.

In the event that you are already enrolled in and are receiving Social Security income benefits prior to turning 65, you should automatically be enrolled in Medicare Part B and your card should reflect this. If you want to stay enrolled in Original Medicare Parts A & B and your card reflects a start date for both, you may want to consider a Medicare Supplement plan and a Medicare Part D prescription drug plan.

If you decide you do not want Medicare Part B, you should also have instructions to send the ID card back to opt out. When you send the card back, you will receive a new ID card within a few weeks reflecting that you are enrolled in Medicare Part A only. Keep in mind that if you have no credible medical coverage (not counting Medicare Part A) and opt out of Medicare Part B, you will have financial penalties (discussed later in this guide) if you decide to pick up Part B at a later time.

One of the common reasons many people return their card and opt out of Medicare Part B, is if they’re currently employed and have creditable health coverage through their employer. If you are planning to stay employed and keep employer coverage, check with your plan administrator to make sure you have creditable health coverage before you opt out of Medicare Part B.

If you haven’t begun receiving Social Security benefits prior to turning 65, you might have to enroll in Medicare Part B proactively. This is because receiving Social Security benefits provides Medicare with a source of income from which they can deduct your Medicare Part B premium.

If you aren’t receiving Social Security income, you’ll want to enroll in Medicare Part B within three months prior to the month in which you turn 65. You also have the month in which you turn 65 and the three months after the month you turn 65to enroll in Medicare Part B without penalty (unless you have creditable health coverage elsewhere). So, you have a seven-month window to enroll in Medicare Part B.

There are 3 options for enrolling in Medicare Part B if not automatically enrolled:
• Online at
• By calling Social Security at 1-800-772-1213 (TTY users 1-800-325-0778), between 7 a.m. and 7 p.m., Monday through Friday.
• In-person at your local Social Security office. You can find your closest office by visiting the following page and entering your zip code:

If you haven’t started receiving Social Security benefits, may have to make monthly payments. You’ll get a monthly bill called a “Notice of Medicare Premium Payment Due.” There are 4 ways you can pay your Medicare Part B premium:

1. Pay directly from your bank account using your bank’s online bill payment system.
2. Sign up for Medicare Easy Pay, a free service that automatically deducts premium payments from your bank account each month, usually on the 20th of the month.
3. Mail your Medicare payment coupon and payment to: Medicare Premium Collection Center P.O. Box 790355 St. Louis, MO 63179-0355
4. Pay by credit card or debit card. Complete the bottom portion of the payment coupon on your Medicare bill, and sign it. You’ll need to provide the account information as it appears on your card and the expiration date. Most credit cards today only have the month and year in the expiration date field. If your credit card only has a month and year in the expiration date, fill in the month and year on the payment coupon and leave the day field blank. Mail your payment to the address above.

What Does Medicare Part A Cover?

Medicare Part A is your hospitalization coverage. So, at a high level, Medicare Part A covers your stay in a medical facility and the associated services while in that facility. It covers services such as:
• Inpatient care in hospitals
• Inpatient rehabilitation facilities
• Long-term care hospitals
• Skilled nursing facilities
• Home health care services
• Hospice care

You can search whether a medical service is covered by Medicare by visiting the following page:

While Medicare Part A covers the majority of your inpatient care expenses while in a medical facility, you may still be required to cover deductibles and coinsurance while in the medical facility (unless you own a Medicare Supplement plan that covers them).

You will have a responsibility to cover the following (in 2020):

• $1,408 deductible for each benefit period
• Days 1-60: $0 coinsurance for each benefit period
• Days 61-90: $352 coinsurance per day of each benefit period
• Day 91 and beyond: $704 coinsurance per each “lifetime reserve day” after day 90 for each benefit period (up to 60 days over your lifetime)
• Beyond lifetime reserve days: all costs

Most Medicare Supplement plans will cover the deductibles and coinsurance associated with Medicare Part A and even provide an additional 365 days of coverage in a hospital or medical facility setting.

What Does Medicare Part A Cost?

For most, Medicare Part A does not have a monthly premium. This would be the case if you worked at least 40 quarters (10 years) in the United States and paid Medicare taxes while employed. You may also be eligible for coverage if you didn’t work or pay Medicare taxes, but your spouse did.

What Does Medicare Part B Cover?

Medicare Part B covers outpatient medical services that are deemed either medically necessary or preventive. Medically necessary services are “services or supplies that are needed to diagnose or treat your medical condition.” Preventive services are services performed to prevent or detect illnesses.

Medicare Part B benefits include:
• Ambulance service
• Outpatient care
• Clinical research
• DME (Durable Medical Equipment)

Medicare Part B has a deductible of $198 (in 2020) that is owed prior to receiving benefits. This will be paid directly to the medical provider and not to Medicare. Medicare will record these personally paid medical expenses as reported by your physician and will know when your deductible has been met.

After the deductible is met, you’ll pay 20% for most medical services. There is no cap on what you might pay out-of-pocket. It can get expensive if major medical services are needed.

You may also be subject to up to an additional 15% in excess charges if allowed in your state if the physician does not accept Medicare assignment or has opted out of Medicare. This is rare, but you should always check with your physician’s billing person or department to confirm they accept Medicare assignment.

You can search whether a medical service is covered by Medicare by visiting the following page:

What Does Medicare Part B Cost?

This can get a little confusing as there are multiple factors considered to determine what your Medicare Part B premium is, including when your Part B start date is and your income level.

The short answer is that the standard Medicare Part B premium is $144.60 per month in 2020.

However, if your income is above a certain amount, then your Medicare Part B premiums will be higher. This is based on your modified adjusted gross income (MAGI) from two years ago (that’s 2018 for this year) and your tax filing status. Here’s a chart from that can help you determine whether you’ll pay a higher premium in 2020. All income numbers refer to your MAGI from 2018.

What is the Medicare Part B Penalty?

In most cases, if you don’t sign up for Part B when you’re first eligible, you may have to pay a late enrollment penalty. You may have to pay this penalty for as long as you have Part B. Your monthly premium for Part B may go up 10% for each full 12-month period that you could have had Part B but didn’t sign up for it. Also, you may have to wait until the General Enrollment Period (from January 1 to March 31) to enroll in Part B. Coverage will start July 1 of that year.

Usually, you don’t pay a late enrollment penalty if you meet certain conditions that allow you to sign up for Part B during a Special Enrollment Period.

Bottom line here is – don’t make the mistake of not enrolling in Medicare Part B when you are first eligible. Yes, it is elective coverage. However, the penalty will apply if you take Part B after your Initial Enrollment Period or a Special Enrollment Period.

What Services Do Medicare Parts A & B Not Cover?

Medicare doesn’t cover everything. If you need certain services that Medicare doesn’t cover, you’ll have to pay for them yourself unless you have other insurance.

If Medicare covers a service or item, you generally must pay your deductible, coinsurance, and copayments, unless you have a Medicare Supplement plan that covers them.

Some of the items and services that Medicare doesn’t cover include:

• Long-term care (AKA custodial care)
• Most dental care
• Annual Eye exams
• Dentures
• Cosmetic surgery
• Acupuncture
• Hearing aids and exams
• Routine foot care

Why Buy a Medicare Supplement Plan?

The quick answer is to protect yourself financially. You have worked too hard for too long and have too long of a life ahead of you to have your nest egg consumed by unplanned major medical expenses. At a time of life when you are most likely to need medical services while also being on a fixed income, it makes sense to protect yourself as best as you can.

As you have come to understand by reading the information above, Original Medicare will cover most of your medical services at Medicare providers. Your exposure will be a deductible for Medicare Part A, a deductible for Part B, possible 15% excess charges (though rare nowadays); however, your biggest threat is the 20% coinsurance you’ll be responsible for on medical expenses after you meet your Part A and Part B deductibles.

In the case of a major medical event, you could owe tens of thousands of dollars in medical expenses if you don’t have a Medicare Supplement plan to help cover those costs for you.
A Medicare Supplement policy is a private insurance plan that helps to cover such things as the Medicare Part A deductible, 20% coinsurance, and excess charges.

Medicare Supplement plans are generally standardized by Medicare and are offered as plan letters with each plan letter offering different coverage for the different areas of exposure.

The most popular plans for our clients are listed below in order of popularity:

1. Medicare Supplement Plan F – The most comprehensive Medicare Supplement plan you can buy. Plan F covers all the deductible, coinsurance and excess charges in Medicare Parts A & B. With Plan F, you should not have any out-of-pocket costs for Medicare-approved medical expenses. About 40% of our clients buy a Medicare Supplement Plan F. It typically offers strong value for people between the ages of 65-70, and not having to pay anything out-of-pocket for medical services can be very enticing.

2. Medicare Supplement Plan G – This plan works very similarly to Plan F. The only exception is it doesn’t cover the Medicare Part B annual deductible of $198 (in 2020). After the deductible is met for the year, Plan G works identically to Plan F for the rest of the year. Plan G tends to be a good value for people as they approach age 70 and beyond – mainly due to pricing.

3. Medicare Supplement Plan N – Plan N works just like Plan G in that it doesn’t cover the Part B deductible. The exception is that, after the Medicare Part B deductible is met, you will be responsible for copays for outpatient medical services, not to exceed $20 per visit, and copays for emergency room visits, not to exceed $50 per visit.

There are other plans available to you outside of the 3 listed above. For a comprehensive list of all the plans available, you should check our page on Medicare Supplement plans. Below is a comparison chart of all available plans:

How Do I Decide Which Medicare Supplement to Buy?

As discussed earlier in this guide, Medicare Supplement plans are standardized. This is a big part of the “secret sauce” to making the right decision on which Medicare Supplement plan to buy and which company to buy it from.

The 3 main areas of standardization include:

1. Same Basic Benefits – Simply put, if you get a Plan F from one company, it’ll have the exact same basic benefits as a Plan F from any other company. The same is true of any other plan. A company cannot offer more or fewer basic benefits for the same standardized plan offered by another company. This sure makes shopping a whole lot easier.

2. Same Doctor’s Network – Because Medicare Supplement insurance is a supplement to traditional Medicare, each supplement plan from every company has access to the entire Medicare network of doctors. There is not a Medicare Supplement plan available from any company that provides a larger network of doctors. It’s completely standardized. You don’t have to ask your doctor if they take your Medicare Supplement company or plan. You only need to ask if they take Medicare.

3. Same Claims-Paying Process – Claims-processing is automated and simplified for every plan from every company. When your physician files a claim, it goes to a 3rd party intermediary company. This company is notified by the insurance company when you have a Medicare Supplement. So, they know which plan and company you have. The intermediary files the claim for Medicare and, once approved by Medicare, they file the claim with your Medicare Supplement insurance company. Ultimately, your doctor receives their payment from Medicare and separately receives the balance due (based on your plan benefits) from the Medicare Supplement insurance company. The only thing you had to do was show your Medicare ID, and possibly your Medicare Supplement ID, to your physician, receive your medical services and leave. The whole claims-paying process is typically handled automatically. This works generally the same for every plan from every company. Of course, as with all processes, there may be exceptions to the standard process.

After reading about the level of standardization in these plans, you should realize that shopping for the right Medicare Supplement plan is a matter of determining which plan you prefer and which company it makes sense to buy it from – much of it based on who is offering the lowest rate for the preferred plan.

Your decision may also include brand familiarity and A.M. Best rating, which is a letter grade indicating the financial strength of the insurance company. Any company that has a B+ rating or better is considered financially stable.

Will I Get Rate Increases Every Year?

Unfortunately, it’s almost certain that you will. Medicare Supplement insurance is a type of health insurance, and health insurance costs tend to go up by single-digit percentages each year. Trying to predict if, and by how much, a particular plan from a particular company will go up from year-to-year is arguably more difficult than trying to guess how a stock will perform in the next year.

Because of this, GoMedigap provides an extended service for clients, called Rate Watch, that proactively monitors your rate increases versus other offerings and may send you an alert if we think another offering has a better value. This is a service we provide to distinguish ourselves from other Medicare Supplement agencies, and is something our clients tell us they greatly appreciate.

What About Medicare Part D Prescription Drug Coverage?

You can easily find the most cost-effective Medicare Part D plan for your current medications (if any). These Part D plans are not completely standardized. However, Medicare’s Prescription Drug Plan Finder tool allows you to enter in your current medications and determine which Part D plan is accepted by your preferred pharmacy and can save you the most money based on available data.

How Can I Cover Dental, Vision, & Hearing Services Not Covered by Medicare?

GoMedigap has researched several options and has determined that, in our opinion, a combined Dental, Vision, and Hearing (DVH) plan generally makes the most sense for most of our customers. It combines the deductible for all three services. So, any covered expense for any of the three services is applied to the deductible. We researched the available DVH plans and found the offering that we believe provides the most value.

Why Should I Allow GoMedigap to Help Me Find My Policy?

At GoMedigap, we’re guided by this mission:

“To be the most trusted Medicare Supplement insurance agency in the country, serving clients as if they were our own parents.”

We’re dedicated to providing resources and any additional help you need to help you understand your Medicare options so you can make an educated decision about your coverage. Choose GoMedigap. You’ll be glad you did. You can view your rates quickly and easily using our online tool, and apply for the coverage that you like best, all from the comfort of your home.

Nothing on this website should ever be used as a substitute for professional medical advice. You should always consult with your medical provider regarding diagnosis or treatment for a health condition, including decisions about the correct medication for your condition, as well as prior to undertaking any specific exercise or dietary routine.

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