Tammy Chase says Novak told the newspaper's editor and publisher today that he plans to focus on his treatment and recovery.
The Sun-Times reports that Novak's prognosis is "dire."
Novak told the paper that the tentative plan is for radiation and chemotherapy but that the details are being worked out with doctors this week.
A spokesman says Novak was discharged from Brigham and Women's Hospital on Saturday.
Novak has been a columnist for the Sun-Times for decades.
He announced that he has a brain tumor late last month, less than a week after he struck a pedestrian and drove away.