Contact your caseworker either in person or by phone. Each person approved for a medical card is assigned to a caseworker. The caseworker is in charge of making changes on your account and determines your eligibility for the card. If you do not know who your casework is, contact your state department of human services to request that your caseworker be looked up. Find the department's name, address and phone number on your medical card approval letter.
Schedule a meeting with your caseworker. At the meeting you will need to provide proof of your new address as well as a rent or mortgage receipt. Each state has its own requirements to determine proof of address; however, the most common are mail and a state-issued ID documenting your new address.
Sign the authorization form documenting the changes made to your address. If your new address is out of the district of your current department of human services, your case will be transferred to another office closer to your new address.