A Medicaid deductible is met by adding up medical costs on a day by day basis. When a Medicaid applicant pays or is billed for medical care, supplies and prescriptions, he has incurred these costs and may have them applied to his deductible. Only the portion of the bill that the person must pay can be applied to the deductible. (For example, a person with health insurance may only be responsible for 10% or $50 of a $500 bill. Fifty dollars is the amount that can be applied to meet the Medicaid deductible.) You can be authorized for Medicaid on the date that the bills add up to the amount of the deductible.