22 September 2010 ~ 29 Comments

Medicare ID numbers Suffixes and Prefixes

Most medicare identification numbers you will see end in A.  This means that that person has medicare under their own social security number.  However there are other ways a person can have medicare and those are reflected in the letter after the social security number on the medicare card. For example if the letter is B or D the social security number will be the husbands If the letter is C it is one of the parent’s numbers.

Here are the suffixes and their descriptions for regular Medicare:

SUFFIX / DESCRIPTION
A Retired worker over 65 or disabled worker
B Wife (over 65) of retired or disabled worker
B1 Husband of retired or disabled worker
B2 Wife whose entitlement is dependent on the care of a child
B3 Second wife

B4 Second husband
B5 Second wife (entitlement dependent on a child)
B6 Ex-wife (entitlement dependent on a child)
B7 Third wife (entitlement dependent on a child)
B8 Third wife
B9 Third husband
C Child (including a disabled child or a student). Suffixes assigned by age, i.e.:
C1 Youngest Child
C2 Next youngest child
C? Etc.
D Widow
D1 Widower
D2 Second Widow
D3 Second Widower
D4 Widow who remarried after age 60
D5 Widower who remarried after age 62
D6 Surviving ex-wife
D7 Second surviving ex-wife
E Widowed mother
E1 Mother (ex-wife) who survives the retired worker
E2 Second widowed mother
E3 Second mother (ex-wife) who survives the retired worker
F Parent category (the F suffix is never used alone) for aged dependents
F1 Father
F2 Mother
F3 Stepfather
F4 Stepmother
F5 Adoptive father
F6 Adoptive mother
F7 Second “alleged” father
F8 Second “alleged” mother
J & K Special beneficiaries whose entitlement depends on the quarters of employment that they have under social security.
J1, J2, K1, K2 Entitled to Part A.
J3, J4, K3, K4 Not entitled to Part A, may purchase Part A.
M An individual enrolled in Part B who is not entitled to retirement and survivor’s or Railroad Retirement insurance and is not eligible for Part A but may purchase Part A coverage.
M1 An individual enrolled in Part B who meets the requirements for Part A but has not applied.
T An individual entitled to Part A benefits but not to retirement and survivor’s or Railroad Retirement insurance or who is entitled to Medicare based on chronic renal disease. It applies whether or not the beneficiary elects to receive Part B.
W Disabled widow
W1 Disabled widower
W2 Second disabled widow
W3 Second disabled widower
W6 Disabled surviving ex-wife
W7 Second disabled surviving ex-wife

If the Letter or letters are in front of the social security number or railroad number, then that patient has Railroad medicare. See Railroad Medicare for more information.

Here are the Railroad Medicare prefixes and their description;

Alpha Character Description
A Railroad retiree – file established when the employee was alive
MA Spouse of the Railroad retiree
MH Spouse of the retiree – employee on Railroad pension when Act passed in 1937
H Employee on Railroad pension when Act passed in 1937
WA Widow(er) of the retiree – file established when the employee was alive
WH Widow(er) – employee on Railroad pension when Act passed in 1937
WD Widow(er) of the retiree – file established after the retiree deceased
WCA Disabled child of the retiree – file established while the retiree was alive
WCD Disabled child of the retiree – file established after the retiree deceased
WCH Survivor of disabled child, of retiree – on Railroad pension when Act passed in 1937
CA Disabled child of the retiree – file established when the employee was alive
PA Survivor parent – file established while employee was alive
PD Survivor parent – file established after employee deceased
PH Survivor parent - employee on Railroad pension when Act passed in 1937

29 Responses to “Medicare ID numbers Suffixes and Prefixes”

  1. JAN 9 February 2011 at 12:16 pm Permalink

    OK BUT WHAT DOES TA AT THE END OF THE NUMBER MEAN??

  2. Herbie 4 March 2011 at 3:22 pm Permalink

    Government employees who qualify for Medicare and are not receiving Social Security benefits will have a “TA” suffix.

    Google is a beautiful thing.

  3. Josh 28 July 2011 at 9:49 am Permalink

    Have you ever seen a prefix that started with a ‘ { ‘? This person has an 11 digit mc number, no suffix, with a bracket at the front. What does it mean? Is it an error?

  4. Giselle Palmasano 4 November 2011 at 5:32 am Permalink

    I have a patient with the suffix DV- this code doesn’t seem to be listed. What does this suffix signify?

  5. Suzanne 6 November 2011 at 2:12 pm Permalink

    It means the person qualifies for medicare because they are the surviving third ex-wife.

  6. Beth 8 February 2012 at 12:07 pm Permalink

    What does DC after the number mean?

  7. Suzanne 8 February 2012 at 3:56 pm Permalink

    SURVIVING DIVORCED HUSBAND

  8. ALlen Hobbs 9 April 2012 at 10:22 am Permalink

    I and my wife are over 65 and both worked enough to qualify for SS and medicare. My Medicare card has my ss# and a suffix “A”. My wife’s Medicare card also has my ss3 and a suffix “A”. Is this correct?

  9. Suzanne 9 April 2012 at 12:08 pm Permalink

    If your wife’s medicare card has your SS# then there should be a ‘B’ after it. If it has her SS# ,then there would be an ‘A’. Your SS# with an ‘A’ on her card does not sound correct. Things do change. She should call Medicare and double check it. Try 8006334227.

  10. Tara 21 May 2012 at 11:29 am Permalink

    We have a patient who has given us two different possible numbers, but no prefix or suffix. If he doesn’t how, how can we find out??

  11. Suzanne 21 May 2012 at 12:37 pm Permalink

    If you are signed up for Medicare on Line-you can check for your patient’s eligibility. Most likely it should be an ‘A’, but he may not have medicare. Part A is for hospitals. Part B for physicians. See my blog of September 7, 2010

  12. Gail Branson 20 June 2012 at 11:36 am Permalink

    What does E prefix mean on medicare card?

  13. Suzanne 21 June 2012 at 4:23 pm Permalink

    E after the 9 digit medicare number means the person has medicare because they are a widowed mother.

  14. Lynn 25 June 2012 at 1:56 pm Permalink

    Is WX a valid Medicare Prefix? If so, what does it mean?

  15. Suzanne 25 June 2012 at 4:36 pm Permalink

    I can not find anything on a WX prefix. The best thing to do is look at the medicare card. If it has a prefix it should say Railroad Medicare across the top.

  16. Sean 25 July 2012 at 2:43 pm Permalink

    What is the suffix if the child is receiving benefits from his/her mother which has a prefix of D?

  17. Suzanne 26 July 2012 at 5:09 pm Permalink

    The mother has a ‘D’ because she is a widow. The deceased husband social security number should be before the ‘D’. The child should have a ‘C’ with deceased father’s social security number. C1 for youngest child, C2 second youngest,etc.

  18. Rebecca Barnett 6 September 2012 at 1:20 pm Permalink

    please tell me if a disabled child can continue to draw medicare if they are married and both parents are dead

  19. Suzanne 10 September 2012 at 1:24 pm Permalink

    My understanding is that a disabled child may be eligible for medicare under their parents if the child is under 18 years old. A person over 18 and disabled can also qualify for Medicare. A disabled child would have the letter C after the number. Seehttp://www.cahealthadvocates.org/disabilities/overview.html or the CMS medicare site for more information

  20. Gail 6 December 2012 at 7:02 pm Permalink

    How is it that my Social Security number is shown on my new medicare card which I need to carry. Our SS #’s are not allowed on anything else. Why on this card? I feel very uncomfortable having the card in my wallet, even more so after the Social Security hacking fiasco in South Carolina. Please address this.

  21. Liz 24 January 2013 at 5:48 am Permalink

    Can a person have an A after their Medicare number if they have never worked?

  22. Suzanne 29 January 2013 at 12:25 pm Permalink

    You can buy into medicare if you have never worked and meet certain requirements.

  23. Dianne 1 February 2013 at 12:10 pm Permalink

    What does DC mean after a Medicare/Social Security number ?

  24. Suzanne 4 February 2013 at 8:06 pm Permalink

    That is a good question. D means the person has medicare as a widow. C means they have medicare as a dependent child. DC together is one I could not find. Let me know if you find the answer. Asking the person with the card may help.

  25. Dawn 25 April 2013 at 4:36 pm Permalink

    I’ve got a PREFIX of E and then 10 digits. It’s verified accurate w/ Meicare but what type of benefit is this?

  26. Suzanne 2 May 2013 at 3:02 pm Permalink

    I have not heard or seen an E in the front of the number. Must be railroad medicare. Also 10 digits does not sound right. If you can verify that the medicare is valid-call the railroad medicare provider for your state and ask them.

  27. Irene Torrez 15 May 2013 at 10:26 am Permalink

    I’m a divorced survivor, we were married for 20 years, but he remarried twice before his death, each marriage less then 3 years and he was married at the time of his passing. Would I be eligible for any of his medicare benefits?

  28. Suzanne 16 May 2013 at 2:21 pm Permalink

    Yes, since you were married for at least 10 years. You must be at least 62. If you remarry, you will lose the benefits of your former spouse, at least until that second marriage ends in divorce or death.

  29. Kay 21 May 2013 at 9:18 pm Permalink

    What does it mean when the alpha suffix, say A is not at the end of the numbers but before the last 3 or something like that? Thanks.


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