Maximum medical improvement (MMI) is simply a date, selected by your treating physician, where he indicates that you are “as good as you’re going to get”.
MMI does not mean that you are not having problems, that you are not having pain, or that you’re better. It just means that lasting improvement is not expected to occur within the next year.
Maximum medical improvement is important as it establishes the date for which temporary total disability benefits or/and temporary partial disability benefits cease. After the date of maximum medical improvement, the employee would be entitled to impairment benefits or permanent total disability benefits.