What You Should Know
- Onos Health, a behavioral health clinical intelligence platform engineered for health plans and payers, secured a $17 million Series A financing round led by Costanoa.
- The syndicate features strategic investment from CVS Health Ventures alongside continued participation from Flare Capital Partners.
- Directly targets structural blind spots in behavioral healthcare—a category affecting over 23% of U.S. adults annually and generating more than $140 billion in direct medical spend.
- Unlocks critical insights from unstructured clinical notes, addressing the reality that more than 70% of behavioral health quality signals are trapped in non-standardized documentation that legacy payer systems cannot interpret.
- Demonstrates validated operational and clinical outcomes across major health plan deployments, including a 35% improvement in clinical standard adherence, a 75% increase in clinical review efficiency (drastically reducing care delays), and a >6% reduction in behavioral program costs within 12 months.
Costanoa and CVS Health Ventures Back Onos Health
Evaluating mental health and substance use care has long been one of the biggest blind spots for health insurers. While mental health conditions affect nearly one in four U.S. adults and drive over $140 billion in direct spending each year, insurers typically rely on billing codes that show little about actual patient recovery. Over 70% of the meaningful clinical signals—such as treatment plans, symptom progression, and therapy notes—remain locked inside unstructured doctor narratives that standard claims engines cannot read.
The result is an adversarial system of manual chart pulls and blunt prior authorizations that frustrate therapists and delay treatment for patients who need immediate help.
To turn those narrative records into actionable clinical insight, Onos Health has raised a $17M Series A round led by Costanoa, with backing from CVS Health Ventures and Flare Capital Partners. The fresh capital will expand deployment of the company’s natural language processing engine across major commercial insurers, Medicare Advantage plans, and Medicaid programs.
Unlocking Narrative Notes to Speed Up Care
Onos Health’s software scans unstructured therapy notes, intake assessments, and utilization histories to evaluate whether delivered care aligns with established clinical guidelines. Rather than replacing clinicians, the platform automates back-office chart reviews to help payer medical directors identify high-performing providers and flag care gaps early.
The company’s operational footprint has already yielded notable performance metrics:
- 75% Faster Chart Reviews: Automates manual record extraction, reducing turnaround times for clinical reviews and cutting care delays.
- 35% Lift in Evidence-Based Care: Continuously benchmarks care plans against clinical standards across outpatient, intensive outpatient, and residential programs.
- Over 6% Spend Reduction: Lowers total program costs within the first year by curbing avoidable psychiatric readmissions and steering members toward high-quality networks.
- Enterprise Footprint: Currently deployed at Aetna and three of the nation’s six largest health plans.
“Behavioral health care quality is difficult to understand and manage because it is recorded in unstructured clinical documentation which legacy solutions cannot process,” said Akshay Agarwal, co-founder and CEO of Onos Health. “AI has the potential to fundamentally transform how health plans manage care by making clinical quality and care pathways measurable at scale. Onos leverages proprietary AI to give plans unprecedented visibility into their populations, enabling them to proactively partner with providers, eliminate manual administrative work, and improve outcomes while driving efficiency across the healthcare system.”
