A California orthopedic surgeon was busted for attempting to kidnap her son, beating up the child’s caretaker — and then taking off in a private jet to Montana, according to a new report.

Theresa Colosi, 55, was in the middle of a supervised visit with her 12-year-old son around 9:30 a.m. Dec. 8 in the parking lot of Zodo’s Bowling and Beyond in Goleta when she started acting suspiciously, The Los Angeles Times reported.

The contractor providing court-ordered supervision between Colosi and her son caught on to her strange behavior, Santa Barbara County Sheriff officials told the paper.

Moments later, Colosi repeatedly bashed the woman in the head with a metal object, authorities said.

The supervisor urged the pre-teen to run for help — but Colosi allegedly followed him.

She ultimately ran to her car and took off alone, police told the outlet. It’s unclear why the child was not living with Colosi.

Detectives determined that Colosi had chartered a private jet that departed from Lompoc Airport shortly before 11 a.m. and brought her to Glacier International Airport in Montana, the paper reported.

California investigators revealed that the local surgeon gave away her belongings, withdrew $900,000 from her bank account and used fake names for herself, her son and her dog to charter the plane, sheriff’s officials said.

That discovery led detectives to believe that Colosi’s actions were all a scheme to kidnap her son, according to the report.

After coordinating with sheriff’s officials in California, Whitefish, Mont. police conducted surveillance on Colosi’s suspected hideout — and arrested her three days after she jet-setted there.

She was extradited back to the Golden State on Dec. 19 and faces multiple felony charges — attempted murder, assault with a deadly weapon, attempted kidnapping and attempted child-stealing charges, authorities said.

She was also charged with a misdemeanor count of violating a court order, along with possible sentencing enhancements on allegations that she inflicted great bodily injury and used a deadly weapon during the assault, the paper reported, citing court records.

Colosi is a licensed physician and surgeon in California, state medical board records show. She was previously authorized to practice in Oregon, but her license expired last year, the Times reported.