Medicare Blog

what does an "m" at the end of a medicare number mean

by Joanny Swift Published 1 year ago Updated 1 year ago
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Code M – is used for someone who is enrolled in Medicare Part B but is not yet eligible for Medicare Part A coverage. M1 indicates you are enrolled in Part B and are also eligible for coverage under Medicare Part A but have refused Part A coverage.May 19, 2016

What does the letter at the end of my Medicare number stand for?

You may have noticed a letter at the end of your Medicare number and wondered what it stands for. Your Medicare Claim Number is located on your Medicare card underneath the beneficiary name. Providers use this number to provide Medicare covered services.

What do the numbers on a Medicare claim mean?

Besides the letter A, which indicates you are a primary claimant who has paid into the Medicare system as a wage earner, there are 33 other common codes that appear at the end of Medicare Claim Numbers to identify the nature of eligibility.

What does the letter “B” mean on my Medicare number?

It’s important to under­stand that the letter codes in your Medicare number have nothing to do with enrollment in the various parts of Medicare that are also identified by a letter A, B, C, or D. In other words, it does not mean you are enrolled in Medicare Part B if your number ends with the code “B”.

What does M1 mean on a Medicare card?

Code “M”. “M” alone indicates you are enrolled in Medicare Part B but are not eligible for Medicare Part A coverage. To receive Part A coverage you must purchase it. M1 indicates you are enrolled in Part B and are also eligible for coverage under Medicare Part A but have refused Part A coverage.

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What does suffix M mean on Medicare number?

has Part B Medicare only*M = has Part B Medicare only, no SSA benefit. *T = has A and B Medicare, no SSA benefit. W = disabled widow. WA = railroad retirement.

What do the letters after a Medicare number mean?

After the numerical sequence, there will be a letter or a letter followed by another number. These codes indicate Medicare eligibility. For example, assume you are the wife (62 years or older) of the primary claimant, and your husband's SSN is 555-55-5555. Your Medicare number would be 555-55-5555-B.

What does the letter mean after my Social Security number?

claim numberThe letters at the end of a SSN indicate the claim number for a SSI or Social Security beneficiary. Per the SSA: "If you are an SSI beneficiary, your claim number is your nine-digit Social Security Number (SSN) (000-00-0000) followed by two letters such as EI, DI, DS, DC.

What is the new Medicare number format?

A Medicare MBI number contains 11 characters, which are randomly generated without underlying meaning. The MBI number is a string of numbers and upper-case letters, which will include an arbitrary combination of digits (1 through 9) and any letters in the alphabet except B, I, L, O, S, and Z.

How do I read my Medicare number?

The IRN appears to the left of the patient's name on their Medicare card. This is not a unique identifier. While your Individual Reference Number is the number to the left of your name on your card, your Medicare Card Number is the 10 digit number that appears above your name, across the top section of the card.

Do Medicare numbers have letters?

MBIs are numbers and upper-case letters. We use numbers 1-9 and all letters from A to Z, except for S, L, O, I, B, and Z. If you use lowercase letters, our system will convert them to uppercase letters.

How do you tell where you were born by your social security number?

Look at the first three digits of your SSN. These three digits are called the "Area Number" and are the only part of your SSN that can help identify your birth location.

What is a suffix on a Social Security card?

l The second part of the claim number is the suffix following the SSN. n It is usually a letter which may or may not be followed by a digit. n The suffix indicates the type of benefits the claimant receives. n The suffix for SSI is different than the suffix for RSDI if a client is receiving both.

What are the 3 types of Social Security?

Social Security Benefits: Retirement, Disability, Dependents, and Survivors (OASDI)

Do the new Medicare numbers mean anything?

Will the MBI's characters have any meaning? Each MBI is randomly generated. This makes MBIs different than HICNs, which are based on the Social Security Numbers (SSNs) of people with Medicare. The MBI's characters are “non-intelligent” so they don't have any hidden or special meaning.

What is the Medicare identifier?

We removed Social Security Number (SSN)-based Health Insurance Claim Numbers (HICNs) from Medicare cards and are now using Medicare Beneficiary Identifiers (MBIs) for Medicare transactions like billing, eligibility status, and claim status.

Did my Medicare number change?

The Centers for Medicare & Medicaid Services (CMS) developed a new number called the Medicare Beneficiary Identifier (MBI), which replaces the SSN-based Health Insurance Claim Number (HICN) on the Medicare card. CMS began mailing the new Medicare cards in April 2018.

How many digits are in Medicare?

The first nine digits of your medicare number should look familiar to you. Most times, they match your social security number. However, there are some cases where it will be the SSN of your spouse, parent or child instead.

What does a T in Medicare claim mean?

Medicare Claim Numbers ending in “ T” mean you are eligible for for Medicare Part A, but not for retirement benefits. This could be because you suffer from chronic kidney disease, or have eligibility due to Medicare Qualified Government Employment (MQGE), or the spouse of a MQGE.

What is the Medicare code for primary beneficiary?

Relationships to the Primary Beneficiary Codes. The most common code is code “A”. This simply means you are the primary claimant who has become eligible for Medicare through paying into the Medicare system for over 40 quarters.

What does C1 mean on Medicare?

Suffixes following “C” indicate your relationship to the primary claimant. “C1” means you are the first child, “ C2” means you are the second child and so forth.

Where is my Medicare claim number?

Your Medicare Claim Number is located on your Medicare card underneath the beneficiary name. Providers use this number to provide Medicare covered services. It is also the number you will provide to the Social Security Administration when discussing your Medicare account and terms. The first nine digits of your medicare number should look familiar ...

Does Medicare Part C appear on your card?

If you have enrolled in Medicare Part C ( Medicare Advantage) or Part D ( prescription drug coverage ), this information will not appear anywhere on your Medicare card, but on a separate membership card that you receive after enrollment.

What do the letters on my Medicare card mean?

What do the letters on your Medicare card mean? The Medicare number displayed on Medicare cards (known as an MBI, or Medicare Beneficiary Identifier) is 11 characters long: The 2nd, 5th, 8th and 9th characters are always a letter, and the 3rd and 6th characters are sometimes a letter. All other characters will be numbers, and the letters S, L, O, ...

What is Medicare Part B?

Medicare Part B is medical insurance and provides coverage for outpatient doctor’s appointments and medical devices. Medicare Part C, also known as Medicare Advantage, provides coverage for everything found in Part A and Part B through one plan provided by a private insurer.

What is Medicare Supplement Insurance?

Medicare Supplement Insurance, also called Medigap, uses a letter system to identify its plans. Medicare Supplement Insurance is used in conjunction with Part A and Part B of Medicare to provide coverage for certain out-of-pocket expenses like some Medicare deductibles and coinsurance.

What is the meaning of MBI?

All other characters will be numbers, and the letters S, L, O, I, B and Z will never be used. The MBI is randomly generated and is “non-intelligent,” which means it contains no hidden or special meaning and is therefore more difficult for someone to use to steal your identity or commit fraud.

What does "A" mean in Medicare?

“A” means you are a retired wage earner and the primary claimant. Typically, you paid into the Medicare system during your working years over a period of at least 40 quarters.

What is the suffix C in Medicare?

“C” indicates you are the child of a primary claimant. Numerical suffixes following “C” indicate which child you are in relation to the primary claimant. If you are the first child, your suffix is C1; if you are the second child, your suffix is C2; if you are the third child, your suffix is C3; and so on. In all, numerical suffixes following C go all the way to number 9, depending on the order of birth of siblings. If your suffix code is anything in the “C” category, your primary claimant parent’s Social Security Number, and not your own, will constitute the first nine numbers of your Medicare Claim Number.

What does E mean in Social Security?

“E” alone indicates you are the widowed mother of a primary claimant. Other suffixes in the “E” category include E1 for the surviving divorced mother of a primary claimant; E2 for the second widowed mother of a primary claimant; E3 for the second divorced mother of the primary claimant; E4 for the primary claimant’s widowed father; and E5 for the primary claimant’s surviving divorced father. “E” may be a particularly complicated category given these convoluted variations. In all cases, the primary claimant’s Social Security Number will constitute the first nine digits of a Code “E” claimant’s Medicare number.

What is the suffix for a parent?

“F” is the parent category, with suffixes for a primary claimant’s father (F1), mother (F2), stepfather (F3), stepmother (F4), adoptive father (F5), and adoptive mother (F6). There is no “F” suffix without a number following it. The primary claimant child’s Social Security Number will constitute the first nine digits of a Code “F” claimant’s Medicare number.

What is my Medicare number?

There is an easy answer to this question. Your Medicare number will be their Social Security number with a “B6” if you are the divorced spouse and will be “D6” if you are the divorced surviving spouse.

What does an A on my Social Security number mean?

An “A” at the end of your Social Security number indicates that you receive Medicare benefits because you paid into the program while you were working. If your Medicare eligibility is based on someone else’s work history, such as a current spouse, deceased spouse, or ex-spouse, yours will be a completely different Social Security number followed by ...

Why do people have an A on their Medicare card?

Therefore, your friends and co-workers have an “A” on their Medicare card because they are already receiving their Social Security check. There are more than 30 letter codes which can be attached to a Social Security number to make up a person’s Medicare number with “A” being the most common.

What does a D mean on a spouse's Social Security number?

If you are the spouse of a deceased spouse that is claiming that deceased spouse’s Social Security benefits and now you are receiving Medicare benefits, then your Medicare number will be the deceased spouse’s Social Security number ending in a “D”.

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