Los Angeles Superior Court Judge Michael Pastor also moved up jury selection to March 24 because the original date of March 28 was too close to the absolute statutory limit for a speedy trial.
The court anticipates as many as 200 prospective jurors will be called to fill out questionnaires designed to identify any bias.
Murray was away in Houston on Monday working at a clinic for low-income patients. Though the judge pulled Murray's license in California, he is still allowed to practice in Nevada and Texas.
Medical boards in Texas and Nevada say the outcome of the trial will determine whether Murray will be allowed to continue his work in those states.
Murray has pleaded not guilty to involuntary manslaughter in the pop star's death.
He is accused of giving Jackson a lethal dose of the powerful anesthetic propofol.
The trial is set to begin at the end of March.