If you are coming from another country then you are eligible for Alberta Health Care as of the date you enter Alberta.
If you are arriving from another province you are eligible 90 days from the day you enter Alberta. You may use the health care number from your previous province during the 90 day waiting period. In some cases you may have to pay for your medical services and send the receipts to your previous province for reimbursement.
*If you are not eligible right now you may still apply before the 90 days, you will not receive your card until your eligibility date