Each individual applying for Medicaid must furnish his or her Social Security number (SSN). If the individual cannot furnish a SSN, he or she must provide proof of application for one before Medicaid can be approved. This verification of application is usually in the form of a signed receipt or computer printout from the Social Security Administration.

Acceptable documentation of SSN includes a Social Security card, a Social Security award letter, a NUMIDENT, a pay stub, a W-2 form, a driver's license, or an unemployment claim card. If the individual is unable to provide proof of his or her number but can furnish one, the application will be processed using the number the individual has given. The SSNs of individuals who are opened on DCIS are submitted to the Social Security Administration for verification through the Income and Eligibility Verification Systems (IEVS). When a SSN is returned for SSA unverified, DSS is required to pursue the unverified information with the applicant/recipient. If the individual refuses to cooperate in resolving the unverified SSN, medical assistance will be terminated. If the individual claims he or she cannot cooperate for reasons beyond his or her control, obtain documentation of the individual's inability to cooperate or medical assistance will be terminated.

Any individual whose income will be considered when determining eligibility for the applicant will be asked to furnish his or her SSN on the application. When the SSN of a financially responsible individual is voluntarily furnished and is included in the case record, IEVS matching will be performed on this individual.

Verification of the SSN, either through IEVS or acceptable documentation, must be obtained by the first redetermination of eligibility.

Infants born 1/1/91 and after do not have to provide or apply for a number until the child turns age one.