A LEARN Behavioral unit asks a Suffolk court to void MassHealth’s 2024 supervision-ratio recoupment, the dispute Acuity has tracked since April.
Key Takeaways
- A clawback built on two billing codes. According to the complaint, MassHealth directed its managed care entities to recoup 2024 ABA payments wherever paid technician hours (CPT 97153) exceeded ten times paid analyst hours (CPT 97155).
- A provider has now sued. Autism Spectrum Therapies, a LEARN Behavioral unit, filed in Suffolk Superior Court on September 23, contesting roughly $943,000 in demands and seeking the return of about $117,000 it paid under protest.
- The argument turns on rulemaking and a 12-month limit. The company contends the ratio lived in performance specifications rather than regulation, and that state law bars most retroactive behavioral health denials after 12 months.
- The rules have since changed, and 2025 is next. MassHealth amended its billing regulations in July and revised the ABA specification in February; the court will decide whether the earlier rules supported the recoupment, while plans have signaled a 2025 round.
For most of this year, the fight over MassHealth’s supervision-ratio recoupment was conducted by letter. Carelon Behavioral Health sent repayment demands at the state’s direction, providers’ attorneys answered with a litigation threat, and the health plans and the state each pointed to the other as the party with authority to stop it. On September 23, one provider took the argument to court.
Autism Spectrum Therapies, LLC, part of LEARN Behavioral’s AST provider network, filed a complaint and jury demand in Suffolk Superior Court against the Executive Office of Health and Human Services, Secretary Kiame Mahaniah, and Medicaid Director Ryan Schwarz, along with seven managed care defendants: Carelon Behavioral Health, WellSense Health Plan, Fallon Community Health Plan, Health New England, the Massachusetts Behavioral Health Partnership, Point32Health, and Tufts Health Public Plans. According to the complaint, the company has treated Massachusetts patients since 2017 through affiliated companies and consolidated its Massachusetts payer contracts under its own tax identification number in February 2020. The case, No. 2684CV02851, was accepted on September 24 into the Business Litigation Session, the court’s track for complex commercial disputes, under a notice listing Judge Kenneth W. Salinger. Law360 reported the filing the following day.
According to the complaint, the defendants have demanded $942,862.89 for calendar year 2024: $857,002.24 through the four plans Carelon administers and $85,860.65 through Point32Health. On June 6, the company refunded $95,207.92 on the Fallon line and $21,837.58 on the Massachusetts Behavioral Health Partnership line, a total of $117,045.50 it says it paid under protest to avoid offsets against current claims. It is asking the court to declare the method invalid, permanently bar further collection, order the return of what has been paid, and award damages for breach of contract, and it has demanded a jury trial.
The suit is the next chapter in a dispute Acuity first reported in April, when providers received six-figure recoupment letters tied to a supervision standard that had never been codified as a payment condition. By June, MassHealth had told a provider coalition that every element of its ABA performance specifications was a requirement of payment, and the coalition said it was weighing its next legal steps. Autism Spectrum Therapies filed on its own behalf.
How MassHealth Calculated the ABA Supervision Recoupment
The dollar figures trace back to March 2024, when the state Inspector General estimated that MassHealth had overpaid ABA providers by up to $17.3 million. Most of that, $16,761,445, went to services that did not meet what the office described as MassHealth’s requirement that Licensed Applied Behavior Analysts supervise paraprofessional staff for at least one hour per 10 hours of direct service. The same review noted that MassHealth had not audited its ABA managed care entities since it began covering the therapy in 2015. The complaint reads that report differently: it says the Inspector General’s own data showed an average of one supervision hour for every 7.78 service hours, that the overpayment figure came from claims by 108 of the 562 providers reviewed, and that the Inspector General did not recommend recoupment.
MassHealth then ran its own calculation on 2024 claims. According to the complaint, it compared paid units of CPT 97153, the code for technician-delivered treatment, with paid units of CPT 97155, the code for treatment with protocol modification delivered by a licensed analyst. Providers whose ratio fell between 10-to-1 and 19-to-1 owed back the technician hours above the line; at 20-to-1 or worse, all of them. By MassHealth’s own illustration, as the complaint recounts it, a provider billing 150 technician hours against 10 analyst hours would keep payment for 100 hours and owe back 50. The company says neither MassHealth nor the plans reviewed a single member’s medical record before the plans were directed to collect.
The demands followed. Carelon’s February 25 notice asked Autism Spectrum Therapies for $919,453.79 within 30 days, the complaint says. After the company appealed, Carelon upheld the recoupment on May 15, reduced the total to $857,002.24, and set a May 30 deadline. Point32Health, which administers the Tufts Health Plan MassHealth line, followed on April 6 with a demand of $85,860.65 covering 14 members and said it would begin offsetting on or about May 11. The complaint says Point32Health had not yet begun collecting when the suit was filed.
The plans and the state have a stated basis for the demands. Carelon took the position that the ABA performance specifications, which reference the 10-to-1 ratio, are identified in provider manuals incorporated by reference into its provider agreement, so that falling short of them was a breach of contract and the resulting payments were overpayments under MassHealth’s billing regulations, according to the complaint. The company also says, on information and belief, that MassHealth cited its general payment statute and several billing regulations as authority for the recoupment.
What Autism Spectrum Therapies Argues in Its MassHealth Lawsuit
The company’s central claim is that MassHealth enforced a payment rule it never adopted. The specifications were first posted on the Massachusetts Behavioral Health Partnership’s website in 2016, the complaint says, and the version in effect in December 2023 stated that the hours approved were based on “a minimum of one hour of case supervision for every 10 hours of direct service.” The complaint calls that document a “sub-regulatory, non-binding” set of expectations and argues that it never defined case supervision or said that only CPT 97155 would count. Because the ratio was never promulgated under the state’s Administrative Procedure Act, the company argues, it carries no legal effect.
It also invokes a state law on retroactive claims denials for behavioral health services. Once 12 months have passed since a claim was submitted, that statute permits a payer to claw it back only in listed circumstances, such as fraud, duplicate payment, services never delivered, or services not delivered in accordance with MassHealth regulations. The company says no defendant has alleged any of them.
The complaint leans heavily on a health plan’s own objections. In a February 9 written response to MassHealth’s program integrity team, it says, Point32Health wrote that the agency’s 2024 audit methodology “may be flawed,” noted that analysts also bill supervisory work under code H0031-U2, and said the first notice of the method came through the overpayment notification, “which has left providers unprepared and without prior understanding of expectations.” The plan also reminded MassHealth, according to the complaint, that the agency had been meeting monthly with ABA trade organizations without raising the issue. Working from the data it had, Autism Spectrum Therapies says at least 80 of the 123 members in Carelon’s sample met the ratio once all billable supervision was counted. It asked Carelon five times between February 27 and March 24 for claim-level data, the complaint says, and never received it. On September 11, Carelon declined to reopen its determinations or meet to discuss the methodology.
The filing also describes the circular dynamic providers recounted to Acuity in June. “Thus, when AST has attempted to contest the recoupment, MassHealth has directed AST to the MCEs, and the MCEs have blamed MassHealth,” the complaint states.
MassHealth Has Since Rewritten the Supervision Rules
Two changes this year sit at the edge of the case. In February, Carelon and the Massachusetts Behavioral Health Partnership revised the ABA performance specifications. The updated version requires analyst supervision during direct service of no less than 10 percent of direct hours, with any level above 25 percent requiring documented clinical rationale, and sets a one-hour monthly minimum for members receiving 10 or fewer hours of treatment a month.
Then, effective July 31, MassHealth amended its administrative and billing regulations. Among the changes, the agency’s transmittal letter says, the amendments clarify that providers participating in managed care must adhere to performance specifications and other requirements in their managed care provider contracts. The amendment does not mention ABA. Whether the rules in force during 2024, and the contracts that referenced the specifications, already authorized the recoupment is the question the court will have to answer.
What the MassHealth ABA Lawsuit Means for Providers
The stakes extend beyond one company. MassHealth paid $279.4 million for ABA services for 10,234 members in state fiscal year 2025, according to the Autism Commission’s draft 2025 annual report, up from $233.4 million the year before. The state has also moved this year to re-adopt its ABA fee schedule unchanged, leaving providers with little margin to absorb a retroactive bill. Point32Health told Autism Spectrum Therapies in April to expect the same method on 2025 claims, according to the complaint.
LEARN Behavioral is among the larger platforms in the field; it agreed in May to acquire Little Leaves from FullBloom. Smaller providers facing the same letters have fewer resources to litigate, which is part of why the coalition’s June warning centered on access: discharged Medicaid clients and closed caseloads rather than contested invoices.
Massachusetts is not the only state working through how supervision should be measured and enforced. North Carolina’s House Bill 696 directs the state to set treatment-to-supervision ratios through rulemaking, and Georgia’s October rules traded fixed supervision ratios for audit thresholds. Federal reviews of Medicaid ABA billing have turned largely on documentation, which is the ground Autism Spectrum Therapies says MassHealth never examined.
The complaint seeks permanent rather than emergency relief. As of October 9, the docket showed summonses mailed to all 10 defendants on September 24 and a September 28 motion by the company to appoint a special process server, but no appearance by any defendant and no scheduled hearing. “MassHealth is aware of the complaint filed by Autism Spectrum Therapies LLC. Because this is an active legal matter, we cannot provide further comments at this time,” a MassHealth spokesperson said in a statement to Acuity. Acuity also requested comment from Carelon, Point32Health, and counsel for Autism Spectrum Therapies.
Update, October 14, 2026:
This article has been updated with a statement from MassHealth.
