Minnesota made improper payments to up to 100 chemical-dependency providers since 2014 and must return the money to Washington after federal officials issued a formal notice to the state Department of Human Services (DHS) in May.
The Centers for Medicare and Medicaid Services (CMS), which administers the federal-state Medicaid program, said that Minnesota "must immediately cease" the payments, according to a letter obtained by the Star Tribune.
It is unclear how much money the state must return, but sources told the Star Tribune that it could be more than $10 million.
Acting DHS Commissioner Pamela Wheelock said Wednesday that the agency is "working with CMS to determine the scope and remedy for this issue," but added: "We are committed to ensuring access to quality care for people who need substance-use disorder treatment. This issue will not impact our efforts."
The payback amount would be in addition to the $25 million in overpayments that came to light recently to two Indian bands for outpatient substance-abuse treatment. DHS has asked the bands to return the money, even though both tribal governments contend they were following DHS guidance that resulted in the overpayments.
The back-to-back errors caused renewed criticism from state legislators who have been critical of the state agency's performance.
"It seems that DHS has a cavalier attitude towards operational standards and a batten-down-the-hatches approach to transparency," said Sen. Jim Abeler, R-Anoka, chairman of a key Senate health committee. He added that DHS has not informed him of the federal request for repayments. "DHS has adopted a go-it-alone mentality with regard to at least the Senate and probably the Legislature in general," he said.
Generally, federal Medicaid money cannot be used to pay for treatment in "institutions for mental disease," which include facilities that have more than 16 beds. Medicaid is funded with both state and federal dollars.