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Check this box if you are a Railroad Retirement Board (RRB) Beneficiary.
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Medicare Number:
Medicare Number
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The Medicare Health Insurance Claim Number (HICN) for
non-RRB
individuals the HICN is comprised of the 9 digit SSN of the primary account holder and a 2 position Beneficiary Identification Code (BIC) that shows the relationship of the enrollee. For
RRB
individuals the CSAN may be six or nine digits and is preceded by a 1, 2 or 3 character BIC. The RRB uses fewer BICs than SSA and their BICs fail to distinguish between multiple claimants with the same relationship to the wage earner.
Medicare Number Help
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* Medicare Number - first three digits.
* Medicare Number - digits four and five.
* Medicare Number - last four digits.
* Medicare Number - Suffix.
A
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
B
B1
B2
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B4
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BD
BG
BH
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BK
BL
BN
BP
BQ
BR
BT
C1
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C3
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CA
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D
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D6
D7
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D9
DA
DC
DD
DG
DH
DK
DL
DM
DN
DP
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DV
DW
DY
E
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E3
E4
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E9
EA
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EC
ED
EF
EG
EH
EJ
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EM
F1
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G1
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G3
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G5
G6
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G8
G9
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HB
HB1
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HB6
HB7
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HC1
HC2
HC3
HC4
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HC6
HC7
HC8
HC9
J1
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J3
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K3
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K9
KA
KB
KC
KD
KE
KF
KG
KH
KJ
KL
KM
M
M1
T
T2
T3
T4
T5
T6
T7
T8
T9
TA
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TD
TE
TF
TG
TH
TI
TJ
TK
TL
TM
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TQ
TR
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TT
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TX
TY
TZ
W
W1
W2
W3
W4
W5
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W8
W9
WB
WC
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WG
WJ
WR
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