Somewhere in the United States today, a parent is sitting in a pediatric emergency room for the third time this year. Their child is in crisis. The clinical team will stabilize the immediate risk, write a referral to an outpatient therapist, and discharge them. The therapist has a six-month waitlist. The only alternative is a psychiatric residential facility at $30,000 a month that removes the child from home and rarely addresses the family dynamics that triggered the crisis in the first place.
This is not a gap in the system. It is the system.
For the 9 million Americans between the ages of 8 and 26 with serious mental health conditions, this cycle — crisis, emergency room, discharge, no real care, repeat — is the only available path. Flourish Health is building the path that was missing.
Youth serious mental health is one of the most acutely underfunded markets in U.S. healthcare. The CDC estimates 9 million Americans ages 8 to 26 live with clinically serious mental health conditions. Only 20 percent receive appropriate care. The remaining 7.2 million are at risk of cycling through emergency rooms and psychiatric residential treatment at an estimated annual economic cost of $300 billion.
The structural cause is not a shortage of willingness. It is a shortage of the right clinical infrastructure. Community-based clinicians qualified to treat severe behavioral health in youth are scarce. Traditional outpatient therapy was never built for this acuity level. Psychiatric residential treatment removes the child from the family system that determines whether any improvement lasts.
Prior to Flourish, the choice for a family in crisis was: waitlist for outpatient, escalate to residential, or cycle through the ER until something changed. None of those is care.
Flourish is built around a founding team of serial healthcare company builders and a clinical physician whose entire career has been shaped by the communities this model serves.
Natalia Birgisson, MD trained as a psychiatrist at Stanford and volunteered throughout her medical training with medically complex youth in the foster care system. Before Flourish, she was on the Doximity IPO team. She is Latina, first-generation American and Icelandic. Her entire career has been oriented around the exact families Flourish serves.
That is not a background. That is a calling.
John Haskell co-founded Reema Health and Triggr Health. Josh Gachnang was Employee #1 at Triggr Health. They have built and scaled payer-facing behavioral health companies together before.
Flourish delivers intensive, community-based behavioral health care through a model called a CarePod: a four-person multidisciplinary team of a child and adolescent psychiatrist, licensed therapist, patient guide, and family guide, serving up to 30 patients simultaneously, amplified by a purpose-built AI platform.
This is not a telehealth app. It is a care delivery operating system.
The AI platform removes the administrative burden that consumes clinicians in traditional settings, freeing each team member to focus on patients rather than paperwork. Flourish built its own platform to fill a gap in capabilities among traditional EMRs that were never designed for integrated, high-acuity, team-based care. The platform uses AI as a force multiplier to support engagement, workflow, clinical model adherence, and care team coordination, while clinicians remain the decision-makers and all patient care is delivered by humans. The result is care margins that are exceptional for a care delivery model, a proof point that the AI productivity is real and already working.
Flourish does not sell to employers or consumers. It sells to health plans on a bundled case rate, aligning revenue with patient outcomes and removing the fee-for-service incentive to over-service.
The family-inclusive model is what makes results durable. Flourish works directly with parents, siblings, and caregivers to change the home dynamic, so that improvements persist after clinical discharge. Studies with multiple major health plans confirm 70 to 96 percent reductions in hospitalizations, a 69 to 90 percent decrease in residential treatment, and a sustained 80 to 95 percent decrease in higher levels of care post-discharge. Flourish achieves 92 percent month-over-month patient retention during programs that cost less than a single month of inpatient treatment.
The health plans know this. That is why they expand.
Cherryrock backs concentrated positions in companies we believe can define their categories. We look for a large underserved market, a team with the domain depth to build it, outcomes that customers cannot walk away from, and a business model that scales with clinical success. Flourish has all four.
There is also something more personal here. I grew up on Medicaid. My grandparents were foster parents for over four decades, throughout my entire childhood and into my adult life. I watched families in my community navigate a system that was not built for them. I have seen what it looks like when a child in crisis has nowhere to go. I have seen how those families are turned away, passed along, and left with nothing that actually works. Investing in Flourish is not just a thesis. It is a belief that the families I grew up around deserve the same quality of care that any family with a good private insurance plan takes for granted.
I am honored to be joining the Flourish board.
The Series A is a $26 million round, co-led by B Capital, F-Prime, and Cherryrock Capital. Combined with $20 million in previously undisclosed funding, Flourish has raised over $46 million since inception.
Revenue has grown 3x year over year, entirely contracted with major health plans including Medicaid plans, specialty foster care plans, and commercial insurers.
The land-and-expand playbook is working. Multiple Medicaid plans have recommended Flourish to their counterparts across state lines, and Flourish is now contracted nationally. These are executed contracts, compounding.
Health plans describe the choice as: Flourish, or a waitlist to residential. No other clinical startups are named as direct alternatives in payer conversations. That is the most direct competitive validation available.
Youth serious mental health is not an edge case. It is a structural failure of the U.S. healthcare system that touches 9 million people, costs $300 billion a year, and is getting worse. The post-pandemic deterioration in youth mental health has added urgency that Medicaid programs and commercial payers can no longer absorb with the existing toolkit. Something has to change.
The new capital will support national expansion in partnership with the largest health plans in the country, with continued investment in hiring and training clinicians and guides, health plan partnerships, and the technology needed to deliver intensive, compassionate care at scale. The demand is not the constraint.
We believe Flourish is building the infrastructure that changes how high-acuity youth behavioral health is delivered in the United States, and that the window to build it is open right now. We are proud to be partners in that work.
