Indiana Medicaid is stepping down the ABA 97153 unit rate from $17.06 to $15.39 by 2027. That is a 10% cumulative revenue cut per unit, phased in a way that gives Indiana ABA CFOs a real planning window.
The practices that survive this rate cycle will use the phased implementation to their advantage. The practices that treat each rate step as a one-off will find themselves boxed into consolidation or shutdown by 2028.
Two data points to anchor the plan:
- Old 97153 unit rate: $17.06
- 2027 target 97153 unit rate: $15.39
- Approximate per-BCBA supervision team annual revenue delta: -$34,500/year at 400 units/week
For a 10-team Indiana ABA org, that’s approximately $345,000/year in gross revenue you must recover through operational discipline, volume growth, or payer mix change.
Here’s the playbook.
Why Indiana Followed New York’s Playbook
Indiana ABA rate cuts are downstream of the same pressures compressing New York rates:
- HHS-OIG improper payment findings ($200M+ across 4 states)
- Post-CARD bankruptcy political scrutiny of PE-backed ABA consolidation
- Autism prevalence growth outpacing state ABA line item budgets
- 132,307 BCBA job postings in 2025 (up 28% YoY) creating workforce pressure
Indiana specifically is exposed to the Midwest PE-backed ABA cluster: BlueSprig (KKR, based in Houston but Midwest-active), Caravel Autism Health (GTCR, WI/MN/IA/IL Midwest concentration), Action Behavior Centers (Charlesbank, IN in its 9-state footprint), Behavioral Innovations (Tenex, TX-anchored but expanding).
Indiana Medicaid has visibility into which platforms are billing at scale. The rate step-down is a way to compress PE-backed ABA margins without triggering a coverage crisis.
The Multi-Year Rate Curve and Your Response
Because the rate cut is phased through 2027, Indiana ABA orgs have a real planning window most other states don’t get. Use it:
2026: Precision year
The 2026 rate is between $17.06 baseline and the 2027 $15.39 target. This is your operational precision window. Fix modifier stacks, tighten documentation, renegotiate commercial contracts. Every basis point of NCR improvement you bank now applies to a lower revenue base later.
2027: Structural change year
By the 2027 rate step, your business model needs to accommodate:
- 97153 at $15.39/unit
- 97155 supervision documentation at BCBA salary ranges of $75-100K+
- BCBA-to-RBT ratios at Indiana Medicaid current requirements
- Commercial payer contract adjustments locked in
2028+: The equilibrium year
Practices that hit 2028 with strong operational discipline will find margin has stabilized at a lower but sustainable level. Practices that don’t will be acquisition targets or closures.
The Three Immediate Fixes (Q3 2026)
Fix 1: Indiana Medicaid modifier compliance (2-4% of billable revenue at stake)
Indiana Medicaid has specific concurrent 97153/97155 documentation requirements. If your team is using generic templates that worked in the pre-cut environment, you’re leaving 2-4% on the table now and more at the 2027 rate.
Build an Indiana Medicaid-specific claim scrubbing checklist. Every 97153 line reviewed for BCBA supervision ratio documentation, distinct clinical activity notation, and correct modifier stack.
Fix 2: Commercial payer contract audit (4-8% of billable revenue at stake)
Indiana commercial payers (Anthem BC/BS, Aetna, United, Humana) will use the Indiana Medicaid rate step-down as leverage in commercial rate negotiations. Your commercial payer contracts need to be renegotiated before that leverage is applied.
Priority order:
- Anthem BC/BS Indiana (largest commercial payer in most Indiana ABA markets)
- United HealthCare Indiana
- Aetna Indiana
- Humana Indiana
For each: know your contract renewal date, prepare your outcome data package, push for +8-12% commercial rate increases.
Fix 3: Denial pattern operating model (3-6% recoverable)
At $17.06/unit, denial recovery was optional. At $15.39/unit, denial recovery is mandatory.
Every Indiana ABA org needs a systematic denial recovery process:
- Weekly denial pattern review by payer
- Appeal template for every top-10 denial reason code
- Systematic MHPAEA parity appeal filing on commercial denials that would not apply to physical health services
MHPAEA 2025 final rule (enforced 2026) requires commercial payers to conduct NQTL comparative analyses. Every Indiana commercial denial with disparate treatment vs physical health services is appealable at parity. Most orgs are not filing these.
When Indiana ABA Orgs Should Outsource
Indiana ABA billing outsourcing typically pays for itself within 90 days if any of these apply:
- Multi-state operations with Indiana as one of your states
- Bill Indiana Medicaid + 3+ Indiana commercial payers
- 10+ BCBAs supervising 30+ RBTs
- Historical net collection rate below 96%
- Considering PE roll-up exit within 24 months (buyer diligence will find every billing weakness)
Specialty ABA billing firms in 2026 charge 4-8% of collections. Generic firms charge 8-12% for lower quality. At Indiana’s stepping-down rate structure, the 4-percentage-point differential is the difference between margin sustainability and margin compression.
The Diligence Perspective (For Orgs Considering Sale)
If your Indiana ABA org may pursue a PE-backed roll-up exit before 2028, buyer diligence models are being re-priced to reflect state rate cuts. Specifically:
- Multiples of EBITDA are being adjusted downward to reflect state Medicaid rate risk
- OIG audit posture is now a Q1 diligence question for every ABA acquisition
- BCBA supervisor-to-RBT ratio documentation is being audited for CARD-bankruptcy pattern indicators
- Commercial vs Medicaid payer mix is being scrutinized
Practices with clean modifier compliance, tight session note documentation, and defensible commercial contract terms will trade at platform-multiples. Practices without will trade at a discount or fail diligence.
The gap between “clean” and “not clean” is often 3-4 turns of EBITDA at exit. For a $2M EBITDA regional ABA practice, that’s $6M-$8M in enterprise value.
The Bottom Line
Indiana’s phased rate step-down through 2027 is a planning window. Use it.
The Indiana ABA orgs that come out of 2027 in good shape will be the ones that treated 2026 as their precision year: modifier compliance, documentation tightness, commercial renegotiation execution, systematic denial recovery.
We do a free 30-day denial and modifier audit for Indiana ABA practices. Data-first, no obligation. We’ll show you where the 2027 rate cut will hit hardest and what to fix first.
Book 15 minutes: calendar.app.google/zF3c44hYGRjEf5U26
— KD, Founder, Revenant Care Group | Specialty BH/ABA/SUD RCM | revenantcare.com | (346) 476-4453