Medicaid will pay for unpaid medical expenses for certain medical services that were incurred up to three calendar months prior to the month of the initial application, if the applicant was eligible for Medicaid during this retroactive period and their provider accepts Medicaid as payment for the services they received. Applicants who need retroactive Medicaid coverage, and who did not indicate that they have unpaid medical bills in the last 3 months on their application, should contact their local Health Department or Department of Social Services to apply.