Bill Cosby is reportedly pretending to be Dr. Cliff Huxtable in prison.

RadarOnline reports that the he "is treating fellow inmates for medical issues — thinking he’s Dr. Cliff Huxtable," from his iconic television show, 'The Cosby Show.'

The entertainment outlet reports that a source claims that Cosby “believes he learned a lot about how to cure people and speak to patients after playing Dr. Huxtable for nearly eight years on The Cosby Show.”

He also spends an hour a day dishing out health advice and diagnosing sick patients.

“He is accepting appointments from inmates to help diagnose anything from a cold to obesity,” a source said. “If he thinks they’re incurable, he refers them to the infirmary with a ‘preliminary diagnosis.’

“He told us that he wore a bedsheet like an ‘apron’ to get into character,” the source confided. “He said his medical skills are ‘a tad rusty’ since he played Dr. Huxtable, but he’s still ‘hip’ to the ‘role.’”

Coby was sentenced to three to 10 years in a state prison for drugging and sexually assaulting Andrea Constand at his home 14 years ago.