The longer he’s in prison, he’ll be closer to full retirement age, meaning he’ll collect a higher social security benefit (62 is the bare minimum, waiting until 70 gives you the highest monthly amount).
True, I merely mean that he may be used to a much higher annual expense than he'll be able to afford in retirement. Which is fine, he ain't gonna starve if he worked that long as a doctor.
He’s essentially already retired now.