The mystery of Katherine Jackson’s whereabouts was compounded by a visit from her son’s former physician, Dr. Allan Metzger, who examined her July 14 after being brought to her Calabasas home by someone close to the family, said her attorney, Sandy Ribera.

She had been scheduled to depart on an RV trip to the Southwest to watch her sons perform. The elder Jackson never made any of the shows and Metzger apparently told her not to take the trip, Ribera said.

Metzger is not Katherine Jackson’s primary physician and her regular doctor wasn’t aware the his house call until concerns about Katherine Jackson’s whereabouts were raised, Ribera said.

A phone message left for Metzger at his Beverly Hills practice was not immediately returned Sunday.

Metzger treated Michael Jackson earlier in his career and met with the singer once in the months before he died. Defense attorneys for the physician convicted of killing the pop superstar called him as a witness to try to show the singer was attempting to obtain a powerful anesthetic for home use.

Despite being a defense witness, Metzger aided prosecutors by telling jurors that he refused Jackson’s request and warned him of the risks.

Paris Jackson referenced Metzger’s visit in a tweet early Sunday, writing, “the same doctor that testified on behalf of dr murray saying my father was a drug addict (a lie) is caring for my grandmother… just saying.”

As exclusively revealed Dr.Allan Metzger was the physician called upon by Jermaine and Randy Jackson last week to examine their mom. Her regular doctor knew nothing of Metzger being brought in.

On September 20, 2000 he was issued a Public Letter of Reprimand by The Medical Board of California for engaging “in fraudulent medical practice based on prescriptions written for an international entertainer using a false/fictitious name.”

He later admitted that entertainer was Janet Jackson and that he’d written prescriptions for her in false names to protect “her anonymity.”

It was later revealed that as Michael’s doctor in 2003, he  prescribed him drugs under the alias Omar Arnold.

Metzger eventually went on to testify on behalf of Dr. Conrad Murray in Michael Jackson’s manslaughter trial.

He claimed he had turned down the singer’s request for Propofol – the drug which killed him – just a couple of months before he died.

Paris Jackson is fuming that her uncles have allowed Metzger to treat her grandmother after he testified that her late father was a heavy drug user. something she took to Twitter to dispute.

“The same doctor that testified on behalf of dr. murray saying my father was a drug addict (a lie) is caring for my grandmother….just saying,” Paris wrote.