Mesa Residents Impacted as Arizona Launches AI Tool to Combat Medicaid Fraud

Governor unveils first-in-the-nation artificial intelligence system targeting waste and fraud in state Medicaid program

Governor Katie Hobbs announced a new artificial intelligence tool on Monday that she said will detect fraud in Arizona's Medicaid program before payments are made. The system launches in July 2026 and affects all Medicaid recipients in Mesa and across the state.

Hobbs called the tool a "first-in-the-nation" effort during a press conference in Phoenix. She said the technology will "superpower [the state's] accountability efforts ... and stop fraudsters in their tracks."

"Help flag claims that are at high risk for fraud so they can be reviewed before any payment goes out."

Vanessa Templeman, Inspector General for the Arizona Health Care Cost Containment System (AHCCCS), said the AI system will allow the state to respond to fraud faster and prevent it from continuing. She noted that human reviewers will still interact with the AI system to verify that individuals flagged as fraudsters are actually committing fraud.

Templeman said AHCCCS has been developing the fraud detection tool for the past year.

Partisan dispute over Medicaid fraud progress

Democrats and Republicans disagree on how much progress Arizona has made against Medicaid fraud and waste.

Hobbs said Arizona is "leading the way in fraud detection and prevention." She claimed her administration has "cracked down on historic levels of fraud, saved countless vulnerable people from exploitation and ensured that taxpayer dollars are used for their intended purpose."

The governor provided the following numbers from her administration:

• 2023: Arizona stopped 85 alleged fraudsters from billing the state's Medicaid program
• 2024: Arizona stopped 69 alleged fraudsters
• 2026: Arizona stopped two alleged fraudsters

Hobbs said the decline does not reflect slowed efforts. She said criminals have heard the message that Arizona has "zero tolerance for waste, fraud and abuse."

When Hobbs took office in January 2023, she said claims for procedures most targeted by fraud reached nearly $350 million. By July 2025, that number had dropped to just over $100 million, the same level recorded in January 2021.

During her administration, the Hobbs administration discovered a $2.5 billion state Medicaid fraud scheme that primarily exploited Native Americans from 2019 to 2023. The scheme steered Arizonans seeking help with behavioral health and substance abuse to unlicensed or fraudulent homes that billed for improper services or services that never took place.

Republicans say fraud continues

State Sen. Carine Werner, R-Scottsdale, held a competing press conference on Monday to argue that Medicaid fraud is still occurring.

Werner said if a person asked the Hobbs administration, Attorney General Mayes' office, and AHCCCS leadership, they would say fraud no longer occurs. She said this is not correct, citing meetings she has had with medical providers, state Medicaid members, and tribal members.

"Arizona's fraud response was blunt, unorganized and unable to distinguish good guys from bad guys."

Werner said the state government issued a moratorium on certain Medicaid provider payments in May 2023 to force bad actors out. The moratorium lasted until December 2024.

She said the fallout was bad. Hundreds if not thousands of Arizonans lost access to care because providers were not being paid. Some individuals ended up homeless after not receiving treatment, according to Fox 10, a Phoenix TV station.

Werner said the moratorium "swept up the good providers" and that many providers had to close their doors. She accused AHCCCS and other state regulatory agencies of launching "coordinated attacks" against honest providers who came to the state asking for help.

Governor responds to criticism

Hobbs said it is "unfortunate some folks want to play politics" with the Medicaid fraud situation.

"We are taking this seriously. This kind of fraud is not going to happen under my watch. We are going to take action to stop bad actors. If folks are caught up in that who are not committing fraudulent acts, they have every opportunity to correct their record and make sure they're able to continue providing services."

Templeman said there has been improvement in paying providers who have not been paid.

Mesa residents enrolled in Arizona's Medicaid program will be affected when the AI tool launches in July. The system will review claims before payments are issued, according to Hobbs.