Why ABA Became a Target

WASHINGTON, D.C. – In March 2026, The Wall Street Journal published an investigation titled “The Boom in Autism Therapy Is Medicaid’s Fastest-Growing Jackpot,” reporting that direct Medicaid payments to ABA providers more than tripled from $660 million in 2019 to $2.2 billion in 2023. The piece described providers billing rates as high as $800 per hour for therapy delivered by workers with high school diplomas, and documented a provider in Indiana that collected $29 million from Medicaid in 2023 to treat 84 patients — roughly $340,000 per child. The report was a public crystallization of what federal and state investigators had been documenting in enforcement actions for years.

The conditions that created the ABA Medicaid fraud problem are now well established. Between 2014 and 2022, every state Medicaid program extended coverage to ABA therapy for children with autism. Spending expanded rapidly. Regulatory infrastructure — documentation standards, oversight processes, post-payment review capacity — did not keep pace. Indiana, which had $14.4 million in ABA FFS spending in 2017 and $611 million in 2023, is the extreme example but not the only one. The Benesch law firm, in a March 2026 compliance alert summarizing the WSJ findings and OIG audit wave, described the ABA landscape as characterized by rapid growth, inconsistent oversight, and “conditions ripe for overbilling, compliance failures and in some cases outright fraud.”

Into that environment came a range of actors: established clinical providers scaling too fast, private equity-backed platforms with financial pressure to maximize revenue, opportunists with no clinical background who recognized Medicaid as an unguarded revenue source, and, in the most egregious cases, organized fraud operations that had no intention of providing clinical services at all. The seven schemes described below are drawn directly from DOJ charging documents, state attorney general indictments, OIG audit findings, and Medicaid Fraud Control Unit enforcement actions from 2019 through 2026. They are not hypothetical risk scenarios. They are patterns federal investigators have now seen repeatedly enough to recognize on sight.

Scheme 1: Ghost Sessions — Billing for Services Never Rendered

The most basic and most prevalent fraud pattern in ABA Medicaid prosecutions is the ghost session: billing for therapy that never happened. The client is real, the diagnosis is real, the provider is enrolled, and the claim is submitted — but no one showed up and no service was delivered. Ghost sessions appear in every major ABA fraud prosecution in the current enforcement wave.

The Massachusetts Attorney General’s June 2025 indictment of Patrice Lamour and her Randolph, Massachusetts companies — Lamour by Design (LBD) and Lamour Community Health Institute (LCHI) — alleged that staff were directed to bill for services to members that were not provided, including sessions billed on holidays and after clients had explicitly canceled or terminated services. Investigators found that LBD had billed for ABA sessions during periods when the only licensed supervisor on staff — the only clinician who could legally supervise the service — was not present and stated he had not performed those services. The indictment charged more than $1 million in false claims to MassHealth.

The Connecticut federal indictment in January 2025 of Apellaniz and Aponte at Minds Cornerstone LLC alleged $1.8 million in false ABA claims to Connecticut Medicaid over three years. The charging document described a provider who had already been convicted in state court for Medicaid fraud against a different provider, received that state sentence, was released, and then allegedly opened a new entity and resumed submitting false ABA claims. Ghost session fraud is detected through claims anomaly analysis — a session billed on a date a client was hospitalized, a session billed on a day the facility was closed for a holiday, a session billed the same day a termination letter was sent. The detection challenge is that these discrepancies require cross-referencing data sources that payers and state Medicaid programs do not always integrate in real time.

What compliance programs catch: Claims submitted on holidays, weekends, or dates inconsistent with documented client schedules. Billing volume that exceeds what a single therapist could physically have delivered.

What compliance programs miss: Ghost sessions fabricated to match a plausible schedule, with session notes also fabricated. Without site visits or independent client contact, the fraud is invisible to a documentation review.

Scheme 2: Credential Laundering — Services Rendered by Unqualified Staff

ABA CPT codes carry different reimbursement rates based on the credential level of the rendering provider. CPT 97155, adaptive behavior treatment with protocol modification, requires a qualified healthcare professional such as a BCBA and reimbursed at rates substantially higher than technician-delivered services. Credential laundering is the practice of submitting claims as if a qualified provider rendered the service when an unqualified individual — often an RBT, a family member, or a person with no clinical training at all — actually delivered it.

The Minnesota enforcement wave has produced the clearest documented examples. Federal prosecutors’ charging documents in the Smart Therapy Center and Star Autism Center cases described behavioral technicians who were often young adult relatives of owners, with no autism-related clinical training, delivering what was billed as licensed BCBA-supervised ABA. According to the Sanford Heisler Sharp McKnight legal analysis of the Minnesota charges, prosecutors alleged that unqualified staff delivered services while claims were submitted under qualified provider credentials, with supervisory documentation forged or fabricated to suggest appropriate oversight had occurred.

The Colorado OIG audit (February 2026) identified a structural version of this scheme: auditors estimated that as many as 1,500 to 2,000 behavioral technicians in Colorado were working without the mandated 40-hour training, competency check, and required supervision — even though the state listed more than 6,600 certified technicians overall. This is not individual fraud by a rogue provider. It is a systemic failure in which the credential infrastructure is real but the actual training and supervision it certifies is absent. Claims submitted for services delivered by these technicians are, technically, claims for services by unqualified staff.

What compliance programs catch: NPIs on claims that do not match the credential required for the billed code. Providers billing 97155 with a credential that cannot support that code.

What compliance programs miss: Cases where a qualified provider’s NPI is used to submit claims but that provider did not actually render or supervise the session. Requires cross-referencing NPI enrollment data with session documentation.

Scheme 3: Kickbacks and Patient Recruitment Schemes

Federal ABA fraud cases have increasingly featured Anti-Kickback Statute violations — providers paying cash, recurring monthly stipends, or other inducements to parents, care coordinators, or referral sources in exchange for enrolling clients in the provider’s Medicaid program. This scheme is particularly damaging because it corrupts the enrollment pipeline rather than just the billing, and because it frequently draws into the fraud scheme parents who may initially believe they are simply receiving financial assistance.

The Smart Therapy Center case in Minnesota is the most documented example in ABA specifically. According to the U.S. Attorney’s Office for Minnesota, Asha Farhan Hassan, who owned Smart Therapy Center, paid kickbacks of $300 to $1,500 per month to parents to recruit children into the program — including children who were not diagnosed with autism. Hassan also hired unqualified staff, billed for services not provided, and submitted false documentation. Smart Therapy obtained over $14 million from Minnesota Medicaid between 2019 and 2024 before federal prosecutors charged the scheme and Hassan pleaded guilty in December 2025.

The broader pattern in Minnesota involved 700% growth in EIDBI autism program providers between 2018 and 2023, from 41 providers to over 300. A January 2026 Optum analysis commissioned by the Minnesota Department of Human Services reviewed $9.4 billion in claims from 2022 to 2025 and identified $703 million specifically tied to autism centers in which over 90% of EIDBI claims did not align with rules. The kickback component in many Minnesota cases was intertwined with false billing: patients were recruited with cash payments, enrolled without valid diagnoses or referrals, and then billed for sessions that either were not delivered or were delivered by unqualified staff.

“ABA therapy was an area of behavioral health where fraud and abuse is rampant. [My unit was] often seeing fraud warranting criminal charges, most often in cases where providers were billing for services that were never actually provided to patients.” — Kevin Lownds, Division Chief, Medicaid Fraud Control Unit, Massachusetts Attorney General’s Office, AHLA Fraud and Compliance Forum (2025)

What compliance programs catch: Unusual referral source concentration. Client intake volume spiking without corresponding marketing or clinical expansion. Clients enrolled without a valid diagnostic evaluation on file.

What compliance programs miss: Cash kickbacks paid outside the billing system. Referral payments routed through third parties. Requires active monitoring of referral patterns and intake documentation, not just claims data.

Scheme 4: Group Billed as Individual — CPT Code Upcoding

CPT code 97153 covers one-on-one adaptive behavior treatment by a technician, billed per 15-minute unit. CPT code 97154 covers group adaptive behavior treatment for two or more patients simultaneously. The reimbursement differential is meaningful: individual treatment codes pay at materially higher rates per unit than group codes. The upcoding scheme involves delivering group sessions — one technician serving multiple clients in the same room at the same time — while billing 97153 for each client as if they each received individual one-on-one treatment.

The HHS-OIG Indiana audit found this pattern explicitly. The audit report stated that some sampled enrollee documentation reflected group therapy sessions for which providers had billed CPT codes for individual therapy. The Cotiviti FWA Insights report on ABA fraud patterns cited a specific case in which a provider of autism services was found to have billed ABA services to individual children when the services were being provided to groups. The financial magnitude of this scheme scales with session volume: a provider running six children simultaneously through a group session and billing each as individual 97153 is extracting approximately six times the allowable reimbursement for the actual service delivered.

This scheme is particularly common in center-based settings where staff ratios and room configurations allow multiple clients to be served simultaneously. It is also one of the easier schemes to detect through claims analytics: a single technician whose NPI appears on concurrent 97153 claims for multiple different clients at the same time-of-day stamps cannot have provided individual one-on-one treatment to all of them simultaneously. Claims analytics systems that flag concurrent billing by the same rendering provider represent the primary detection mechanism.

What compliance programs catch: Concurrent 97153 billing by the same NPI for multiple clients at overlapping times. Ratio of 97153 to 97154 claims that is implausibly high for the center’s documented staffing levels.

What compliance programs miss: Group sessions run sequentially rather than concurrently, each billed as individual. Harder to detect without session scheduling data.

Scheme 5: Historical and Template Billing — Billing Based on Schedule Rather Than Actual Services

Historical billing — submitting claims based on an authorized treatment schedule rather than services actually delivered — is one of the most operationally embedded fraud patterns in the ABA space. It typically begins not as outright fraud but as a compliance shortcut: instead of documenting each session individually, staff submit claims based on the prior authorization schedule, “template” session notes, or historical averages. Over time, the practice normalizes. Sessions that did not occur get billed because the schedule said they should have occurred.

The Massachusetts indictment of Lamour by Design is one of the clearest prosecutorial descriptions of this scheme. According to the indictment, employees were instructed by owner Patrice Lamour to “bill based on historical data — rather than actual services rendered — and to falsify documentation to suggest that services had occurred when they had not.” This is the transition from billing error to fraud: when management provides explicit instructions to substitute historical data for actual documentation, the act of submission becomes a knowing false claim rather than a record-keeping mistake.

The Indiana ABA audit found a related variant: billing that included time within sessions that was not therapeutic — meals, bathroom breaks, transitions — billed continuously without adjustment. The OIG noted that most session notes for sampled enrollee-months documented ABA time billed continuously without accounting for non-therapy time within sessions. In some cases, this reflects standard operational negligence. In others, it reflects a systematic practice of billing the full authorized window regardless of how many of those minutes involved actual ABA.

What compliance programs catch: Claims volume matching authorized hours exactly, month after month, regardless of client absences or staff changes. Session notes that are word-for-word identical across dates (template notes). Billing on documented absences.

What compliance programs miss: Historical billing with plausible variation introduced artificially. Requires periodic sampling of session notes against attendance records and staff scheduling.

Scheme 6: Document Falsification and Forged Signatures

Document falsification is the operational enabler of most other ABA fraud schemes. Ghost sessions require fabricated session notes. Historical billing requires session notes that do not reflect what actually happened. Credential laundering requires falsified supervision documentation. Where document falsification becomes a separately chargeable scheme is when it involves the deliberate alteration of clinical records, the forgery of provider signatures, or the fabrication of diagnoses and treatment referrals.

The Connecticut federal indictment described providers who fabricated documentation to support ABA claims. The Minnesota cases documented forged approvals and signatures on clinical records. The Cotiviti audit cited a case in which, upon appeal review, investigators found “altered psychological reports, altered plans of care, amended notes, and other documentation that did not clearly identify the changes made to the documents.” The Massachusetts Lamour indictment specifically charged that employees falsified documentation to suggest services had occurred when they had not — a description of systematic record fabrication at the direction of management.

In the OIG audit context, document falsification often takes a subtler form. The Indiana audit found session notes that did not contain the narrative content required to support the CPT code billed — but the notes existed, were dated, and were signed. Whether those are inadequate documentation (compliance failure) or fabricated documentation (fraud) depends on what the provider actually did versus what the note records. The line between documentation deficiency and document falsification is legally significant: deficiency can result in recoupment and corrective action; falsification can result in criminal prosecution under the False Statements statute (18 U.S.C. § 1001) and obstruction charges.

What compliance programs catch: Signatures that do not match the provider’s actual signature on file. Session note timestamps inconsistent with provider’s documented location or schedule. Notes with identical language across different providers or dates.

What compliance programs miss: Systematic falsification conducted uniformly across a provider organization. Requires forensic review, whistleblower reports, or external audit with site visits.

Scheme 7: Medically Unnecessary Services and Inflated Hours

The least legally clear-cut category of ABA fraud — but one increasingly central to the enforcement narrative — is billing for services that were provided but were medically unnecessary, or billing authorized hours at intensity levels not supported by clinical need. This scheme occupies the space between fraud and aggressive utilization, and it is driving much of the regulatory response that is reshaping the industry.

The Wall Street Journal investigation documented that Piece by Piece Autism Centers in Indiana billed Indiana Medicaid $29 million in 2023 for 84 patients, with reimbursements that at times reached $640 per hour. One Indiana provider advocacy document cited rates of $900 or more per hour during the period when Indiana reimbursed at 40% of billed charges. The Benesch compliance alert described investigators finding that some providers billed 30 to 40 therapy hours per week for nearly every child, despite clinical expert guidance that such intensive schedules are rarely clinically necessary and are not appropriate for all patients regardless of diagnosis. In audits, the OIG flagged at least one case in which a child was receiving more than seven hours of ABA five days per week at age eight, with no updated clinical justification for that intensity level on file since the child was four.

Unlike ghost sessions or credential laundering, inflated hours schemes are difficult to prosecute criminally because the services were actually delivered. The legal liability attaches to whether the clinical justification — the BCBA’s treatment plan, the medical necessity determination, the prior authorization documentation — honestly reflects clinical need or was engineered to maximize billable hours. In a system where BCBAs receive no formal training in how to determine service hours (a 2026 ABA Matrix survey found that 80% of BCBAs report having no formal training on this), and where business models financially incentivize maximum hours, the line between clinical judgment and financially motivated over-prescription is contested ground. Federal enforcement is beginning to treat the most extreme cases as the former while states are responding to the aggregate problem through rate cuts and lifetime caps.

“In Indiana and across the country, certain bad actors have taken advantage of weak oversight and flawed reimbursement structures to generate extraordinary payments through excessive or inappropriate billing practices.” — The Arc of Indiana, responding to the Wall Street Journal investigation (March 2026)

What compliance programs catch: Hours prescribed uniformly across all clients without individualized clinical justification. Treatment plans written to justify authorized maximums rather than clinical need.

What compliance programs miss: Overservice that is internally consistent and clinically rationalized but driven by financial rather than clinical incentives. Requires independent clinical review, not billing analytics alone.

What Compliance Programs Can and Cannot Do

The seven schemes above exist on a spectrum from criminally obvious to structurally ambiguous. Ghost sessions with fabricated notes, kickbacks for patient recruitment, and forged signatures are fraud by any definition. Historical billing, group-as-individual upcoding, and inflated hours exist on a continuum where the same act can be negligent compliance failure or deliberate fraud depending on whether management had knowledge and intent. Medically unnecessary services sit in contested territory where clinical judgment, business incentive, and legal liability intersect in ways the industry is still working out.

A compliance program built around claims analytics can detect concurrent billing anomalies (Scheme 4), billing-on-holidays patterns (Scheme 1), and credential mismatches (Scheme 2) before a federal auditor does. A program with session note auditing can catch template billing (Scheme 5) and identify documentation gaps. A program with intake monitoring can flag referral concentration patterns that may indicate kickbacks (Scheme 3). A program with independent clinical review can identify inflated hours (Scheme 7). None of these, without site visits and direct client contact, can reliably detect document fabrication (Scheme 6) when it is conducted systematically across an organization.

The enforcement environment of 2026 has made ABA compliance a board-level issue rather than a back-office function. The OIG has now found billing problems in 100% of sampled claims across four audited states. The DOJ has active ABA fraud prosecutions in Minnesota, Massachusetts, Connecticut, and Minnesota. State MFCUs in at least a dozen states have publicly identified ABA as a fraud enforcement priority. The Medicaid Fraud Control Unit chief from the Massachusetts AG’s office has stated on the record that his unit was regularly seeing ABA fraud warranting criminal charges. Providers who have treated compliance as an administrative formality now face a landscape in which that posture carries material legal risk — not only in audit-triggered recoupment, but potentially in False Claims Act exposure and criminal prosecution.

AT A GLANCE

Scheme 1 — Ghost sessions: Billing for sessions never rendered. Appears in: MA LBD indictment (Jun 2025), CT Minds Cornerstone indictment (Jan 2025), MN Smart Therapy guilty plea (Dec 2025)
Scheme 2 — Credential laundering: Unqualified staff delivering services billed under qualified credentials. Appears in: MN Smart Therapy, Star Autism Center (2025); CO OIG audit (1,500–2,000 untrained techs, Feb 2026)
Scheme 3 — Kickbacks/recruitment: Cash payments ($300–$1,500/month) to parents or referral sources for client enrollment. Appears in: MN Smart Therapy guilty plea; MN 85 open EIDBI investigations (2025)
Scheme 4 — Group as individual: Multiple clients in group session billed as individual 97153 treatment. Appears in: Indiana OIG audit (Dec 2024); Cotiviti FWA case studies; OIG findings across all 4 audited states
Scheme 5 — Historical billing: Claims based on schedule or prior authorization rather than actual services; meals/breaks included in billable time. Appears in: MA LBD indictment; Indiana and Wisconsin OIG audits
Scheme 6 — Document falsification: Forged signatures, fabricated session notes, altered records. Appears in: MN Smart Therapy (forged approvals); MA LBD (directed falsification); CT Minds Cornerstone; Cotiviti audit (altered psych reports)
Scheme 7 — Inflated hours: Services delivered but medically unnecessary or at intensity not supported by clinical need. Appears in: WSJ investigation (Piece by Piece, IN, $340K/child/year); Indiana OIG (7 hrs/day, 5 days/week, age 8)
Legal threshold: Schemes 1–6 = criminal fraud potential (False Claims Act, wire fraud, 18 U.S.C. § 1001). Scheme 7 = civil False Claims or recoupment territory unless intent proven. All seven carry audit repayment risk.
Detection tools that work: Claims analytics (concurrent billing, holiday billing, NPI mismatches); session note auditing (templates, time reconciliation); intake monitoring (referral patterns, enrollment without diagnosis)
Detection tools that don’t reach: Systematic document fabrication; kickbacks paid outside billing system; inflated hours with internally consistent clinical rationale. Requires site visits, client contact, or whistleblower reports.
Enforcement posture (2026): 100% improper/potentially improper claims in all 4 OIG-audited states. Active DOJ prosecutions in MN, MA, CT. 85 MN EIDBI investigations. State MFCUs in 12+ states with ABA as priority enforcement area.
Whistleblower note: False Claims Act qui tam suits allow employees or insiders to file suit on behalf of the government and receive 15–30% of any federal recovery. RBTs and BCBAs are among the most likely whistleblowers in ABA fraud cases.

SOURCES & REFERENCES

1. – Wall Street Journal. The Boom in Autism Therapy Is Medicaid’s Fastest-Growing Jackpot. March 10, 2026. wsj.com/health/healthcare/autism-therapy-medicaid-payments-640aa435

2. – Massachusetts AGO. Indictments Against Randolph ABA Provider Patrice Lamour / LBD / LCHI. June 10, 2025. mass.gov

3. – U.S. Attorney’s Office, D. of Minnesota. Federal Prosecutors Charge Asha Farhan Hassan / Smart Therapy Center. September 24, 2025. (Guilty plea December 18, 2025.)

4. – Minnesota AG Ellison. Indictments of EIDBI and HSS Providers, including Star Autism Center. December 18, 2025. ag.state.mn.us

5. – U.S. Attorney’s Office, D. of Connecticut. Two Charged with Defrauding Connecticut’s Medicaid Program (Apellaniz/Aponte, Minds Cornerstone LLC). January 17, 2025. justice.gov

6. – HHS-OIG. Indiana Made at Least $56 Million in Improper FFS Medicaid Payments for ABA. Report A-09-22-02002. December 16, 2024. oig.hhs.gov

7. – HHS-OIG. Colorado Made at Least $77.8 Million in Improper FFS Medicaid Payments for ABA. Report A-09-24-02004. February 25, 2026. oig.hhs.gov

8. – Morgan Lewis Health Law Scan. Applied Behavioral Analysis: Key Service for Children with Autism Is Under Payment Scrutiny. November 14, 2025. (Kevin Lownds AHLA quote.)

9. – Benesch Law. Heightened Scrutiny of Medicaid-Funded ABA Services — Key Takeaways for Providers. beneschlaw.com. March 2026. (Citing WSJ and OIG audits.)

10. – Benesch Law. OIG Finds Significant Improper Medicaid Payments for ABA in Wisconsin and Indiana. beneschlaw.com. January 9, 2026.

11. – Cotiviti. FWA Insights: Catching Inappropriate Billing Within ASD Services. resources.cotiviti.com (2023). (Group billed as individual; altered psych reports case.)

12. – Sanford Heisler Sharp McKnight. Fraud Against Autistic Individuals, Their Loved Ones, and Beyond. sanfordheisler.com. December 2025.

13. – Optum / Minnesota DHS. Report: $9.4 Billion in Claims Review, $703 Million in EIDBI Potential Overpayments. January 2026.

14. – ABA Matrix. ABA Trends 2026. abamatrix.com (December 2025). (80% of BCBAs no formal training on service hour determination.)

15. – The Arc of Indiana. Statement on WSJ Reporting on Autism Therapy Medicaid Billing. arcind.org. March 2026.

16. – CASP. CASP Responds to Wall Street Journal Articles. casproviders.org. March 2026.

17. – Massachusetts AGO. October 2023 — $2.5M in Recoveries from Two ABA Provider Settlements for False Claims. mass.gov

18. – Shasta Unfiltered. Minnesota Autism Reimbursements Surge Amid Fraud Probes and Nationwide Cost Controls. March 2026.

19. – DOJ. 2025 National Health Care Fraud Takedown: 324 Defendants Charged, $14.6 Billion Alleged Fraud. June 30, 2025. justice.gov

20. – BreakingNewsABA.com — March 2026