Mirabelle Care is preparing to file for injunctive relief after the state froze its SoonerCare payments over a fraud investigation into the company's former owner.

Mirabelle Care told Behavioral Health Business on Wednesday that it is preparing to file for injunctive relief against the Oklahoma Health Care Authority, which has withheld the autism therapy provider's SoonerCare payments since a weekly check went unpaid on June 24. The company runs seven centers serving about 500 children and employing roughly 200 people, and says all could close by the end of the month; Medicaid is its largest source of revenue. The state suspended payments after the attorney general's office opened a fraud investigation, by subpoena in November 2025, into the billing practices of previous owner Natalie Hisle. Aquitaine Capital acquired the company earlier this year.

The Health Care Authority says the freeze is largely dictated to it. "As a general matter, federal regulations generally require the agency to suspend payments when there is a credible allegation of fraud and an investigation is pending," a representative told BHB. Mirabelle disputes that the rule, 42 C.F.R. 455.23, is absolute, pointing to a "good cause" exception covering cases where cutting off payments would be bad for patients or for the Medicaid program. The agency considered that argument and rejected it, telling the company's counsel that "no exceptional circumstance has been demonstrated." Elizabeth Broomfield, Mirabelle's president, said federal investigators told her the company is not the focus of their investigation into Hisle.

Families are bracing. Kristyn Posadas, whose 5-year-old son receives therapy at Mirabelle, told KOCO that a year ago she clung to him at a gas station because he elopes, meaning he runs away; on the same trip this year he walked in holding her hand. "I'm very scared," she said. Another parent, Caleb Nutty, said children with autism often struggle with the transition to a new provider. "We're basically spending our last dollars on this," Broomfield said of the legal fight. "We would rather spend those dollars on our patients and our employees."