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December 27, 2018

NEWS FLASH! The Social Security Number is NOT Always the Patient’s Medicare ID

Recently we have seen an increase in claims submitted with the patient’s social security number with an ‘A’ suffix.  This has caused thousands of claims to reject.  As you know, rejected services are a huge time-waster for you because you have to handle the claim a second time, fix it, then resubmit for processing.

Please keep in mind, a patient may have Medicare benefits under a spouse or parent; therefore, the Health Insurance Claim Number (HICN) may not include the social security number of the patient being treated. 


If you have the patient’s social security number, you may use it along with the patient’s last name, first name, and date of birth to query the myCGS MBI Look-Up Tool.  It will display the Medicare Beneficiary Identifier (MBI) assigned to the patient.

As a reminder – the MBI transition periodExternal Website allows you to submit claims with either the MBI or the HICN through December 31, 2019.

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