A massive Medicaid fraud scheme in Arizona has left up to 2,000 Native Americans feared dead or missing, with whistleblowers and attorneys sounding the alarm that the nightmare is still ongoing.

New whistleblower allegations claim vulnerable Native Americans were allegedly lured into white vans with promises of treatment, then plied with fentanyl, methamphetamine, alcohol, and other drugs before being imprisoned inside fake behavioral health homes where operators allegedly billed Medicaid for months of fraudulent "treatment."

Arizona officials have previously estimated the fraud exceeded $2.5 to $2.8 billion, while the latest whistleblower allegations contend the broader network may have generated up to $12 billion in fraudulent Medicaid claims over time.

Even more chilling, as many as 2,000 Native Americans may be dead or missing as a result of the sprawling scheme, according to NewsNation Now.

Arizona officials knew about the fraud as far back as 2019, according to the lawsuit.

The news outlet reported:

A Navajo advocate who has blown the whistle on fraudulent "sober living" homes in Arizona says she began shining a light on the Medicaid scam targeting Native Americans after her own cousin was kidnapped by operators who plied her relative with drugs and alcohol.

"They told her she would go to Phoenix for the day and (they would) take her home. All throughout the ride they gave her alcohol," Reva Stewart told "Jesse Weber Live" on Friday.

She said the people who took her cousin demanded personal information from her as they tried to persuade her to stay at a residence. When her cousin refused, Stewart said, they gave her a fentanyl pill and "told her that she would have to find her way home."

When Stewart learned of her relative's ordeal, she realized there was a connection between other missing Native Americans and white vans that were observed cruising around tribal communities.

A civil lawsuit against the Arizona government says state officials enabled what essentially was a plot to divert as many as 7,000 Native Americans to fake sober living homes in Phoenix.

Operators allegedly charged billions in Medicaid services that were not provided as handlers plied residents with drugs. An estimated 2,000 victims are still missing, attorneys have said.

During a recent interview, Stewart detailed the ongoing lawsuit and whistleblower testimony, describing conditions that resemble human trafficking more than addiction treatment.

According to whistleblower accounts, recruiters allegedly drove through tribal communities in unmarked white vans looking for vulnerable people struggling with addiction.

Victims were allegedly offered food, shelter, and treatment before being transported to bogus treatment centers.

Once inside, many never received legitimate medical care.