The length of time it will take for your doctor to get your test results depends on the type of test you are having done. Most cases are reported and either faxed or emailed to your doctor within 1-2 business days. In the case of some specialized tests, it could take up to 5 business days for your doctor to receive the report. As a professional courtesy to your doctor, MMI asks that you allow your doctor at least 5 business days before expecting results from your doctor.