Brook

Brook

Brook is a remote patient care platform that combines remote clinical teams with AI to deliver continuous, between-visit care for chronic conditions. Brook pairs nurses, dietitians, and health coaches with connected devices and an assistant trained on years of care conversations, so patients managing hypertension, diabetes, or heart failure get always-on support from home. Founded in 2015 and based in Seattle, Brook works with health systems, providers, and payers to extend care beyond the clinic. It reports outcomes such as a 90% reduction in congestive heart failure readmissions at one partner. For organizations adding remote monitoring, Brook blends human clinicians with AI rather than relying on devices alone.

Production credibility: Founded in 2015 by Oren Nissim (co-founder and CEO; previously co-founder and CEO of mobile and location company Telmap, acquired by Intel in 2012) and Kit Macgillivray (chief product officer; longtime strategy consultant and Telmap colleague). Brook started in diabetes management and expanded into hypertension, metabolic, and broader chronic care. In late 2025 Brook (operating as Brook.ai) closed a $28M Series B led by UMass Memorial Health and Morningside, bringing total funding to approximately $40M. Brook reports 204% patient growth over the prior year, an 82% retention rate, and an NPS of 66, plus clinical results including a 90% reduction in CHF readmissions and an 80% increase in controlled-hypertension populations within six weeks at partners. Its AI is trained on 5M+ messages from 6+ years of care conversations. Named partners include Independent Health and UMass Harrington Hospital. HQ: Seattle, Washington.

Key Features

• Remote clinical team of nurses, dietitians, and health coaches delivering ongoing care
• AI assistant trained on millions of real care conversations for daily patient nudges and triage
• Connected devices (blood-pressure cuffs, glucose meters, scales) for continuous data capture
• Chronic-condition programs spanning hypertension, diabetes, metabolic health, and heart failure
• Between-visit monitoring that flags deterioration and escalates to clinicians
• Patient engagement via messaging and coaching designed for high retention
• Outcome reporting on readmissions, blood-pressure control, and engagement for partners
• Deployment models for health systems, provider groups, and payers

Ideal Use Case

A health system enrolls heart-failure and hypertension patients in Brook so a remote care team and AI watch their device readings daily, intervening early to keep them stable and out of the hospital between appointments.

How Brook differentiates

Brook competes with virtual chronic-care and remote-monitoring companies like Cadence and Memora Health. Where Cadence centers on remote patient monitoring staffed by its clinical team, and Memora focuses on AI-driven care-program messaging and workflow, Brook's pitch is the blend: its own remote clinicians plus an AI assistant trained on years of its care conversations, sold to providers, systems, and payers. Its evidence is partner-reported outcomes rather than only engagement metrics. The trade-offs are stage and scale: Brook is smaller and earlier-funded than the largest RPM players, and reported results come from specific partners, so generalizing across populations warrants the usual diligence.

FAQ

Q: What does Brook do? A: Brook is a remote patient care platform that pairs remote clinical teams—nurses, dietitians, and health coaches—with AI and connected devices to manage chronic conditions like hypertension, diabetes, and heart failure between visits.

Q: Who founded Brook and when? A: Brook was founded in 2015 by Oren Nissim (CEO), who previously co-founded and led Telmap (acquired by Intel), and Kit Macgillivray (chief product officer), a former Telmap colleague.

Q: How much funding has Brook raised? A: Brook raised a $28M Series B in late 2025 led by UMass Memorial Health and Morningside, bringing its total funding to approximately $40M.

Q: What results does Brook report? A: Brook reports a 90% reduction in congestive heart failure readmissions and an 80% increase in controlled-hypertension populations within six weeks at partners, along with 204% patient growth, 82% retention, and an NPS of 66.

Q: Brook vs Cadence: how do they differ? A: Cadence centers on remote patient monitoring with its own clinical staff, while Brook blends remote clinicians with an AI assistant trained on years of its care conversations, selling continuous chronic-care management to providers, systems, and payers.

tl;dr

Brook is a Seattle-based remote patient care platform (founded 2015) that pairs remote clinical teams with AI to manage chronic conditions between visits. It raised a $28M Series B in 2025 led by UMass Memorial Health and Morningside (~$40M total) and reports strong readmission outcomes.

Related

Looking for more options? Browse the Healthcare directory or read our best AI healthcare tools listicle. Brook is also tracked on Crunchbase.