Bunkerhill Raises $55m For Carebricks Agentic AI Platform

Bunkerhill Health raised $55 million to scale Carebricks, an agentic AI platform used by health systems, AI News reported.

The Series B round included continued participation from Sequoia Capital, Felicis, Optum Ventures and Y Combinator, with Khosla Ventures also named among the investors.

The article included hospital deployment evidence rather than only research-stage claims.

It named Cleveland Clinic, the University of Texas Medical Branch and Intermountain Health as organisations running the platform today.

Carebricks Lets Hospitals Build Their Own AI Agents

Carebricks lets hospitals build agents rather than buy one fixed product, the article said; some agents review cardiology imaging for early signs of heart disease and flag patients needing follow-up care, while others handle prior authorisations or keep registry data current.

In a quoted company statement, Bunkerhill chief executive Nishith Khandwala said medicine has advanced faster than the healthcare system's ability to operationalise it.

Khandwala said AI agents can help health systems turn more improvement ideas into reality when workforce capacity is limited.

The funding round was linked to a wider US healthcare cost and staffing backdrop.

Citing the Centers for Medicare & Medicaid Services, the article put US healthcare spending at $5.3 trillion in 2024 and wrote that labour shortages continue to strain providers.

UTMB Runs More Than 20 Agents On Carebricks

UTMB provided the most detailed deployment account.

According to Dr Peter McCaffrey, UTMB's chief AI officer, the system has more than 20 agents live on Carebricks across clinical care, operations and administration.

The account said a Carebricks coronary-calcium agent flagged a UTMB patient during its first month of use.

It stated that the agent used an FDA-cleared algorithm, cardiology confirmed the heart-attack risk and clinicians performed a triple bypass; UTMB's care team credited early detection with saving the patient's life.

The article also cited UTMB-reported operational results from two other agents.

UTMB said the nephrology triage agent prioritises patients by severity, routes others to telemedicine and cut average specialist wait times by more than 50 percent.

For lung nodule follow-up, the account said a Carebricks agent tracks incidental findings on CT scans through to the correct follow-up.

UTMB cited an 80 percent faster response on urgent cases, a doubling of guideline-concordant follow-up and a drop in manual coordinator work.

Those clinical and operational claims remain tied to the named health system and the article's account.

The account did not provide a peer-reviewed study, patient cohort size, false-positive rate or comparative outcome data for the Carebricks deployment.

Khosla Ventures Points To Health-System Adoption

Vinod Khosla, founder of Khosla Ventures, was quoted as saying the healthcare AI bottleneck was getting a health system to run the technology, not the technology itself.

Khosla described Bunkerhill as having traction in critical health systems that most companies would take years to earn.

The round gives Bunkerhill more capital for sales and deployment work, but the article did not present the raise as proof of measured clinical performance across all sites.

The account gives named users, UTMB deployment examples and investor comments, while leaving commercial and clinical baselines incomplete.

The article did not provide independent clinical outcome data for Carebricks deployments.