Preemptive
Founded 2022 · 13 employees on LinkedIn · 5 known investors
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Preemptive builds a continuous, clinician-guided health monitoring layer positioned beneath primary care, using sensing and AI to detect early physiological changes before symptoms appear. It combines device signals with human interpretation to provide early health signals for individuals within the broader healthcare system.
Also known as Preemptive Health
Founders & leadership
Preemptive was founded in 2022 by Jamien McCullum and Matt Whitehill.
Investors · 5
Company profile
researched Aug 2026Preemptive describes itself as a layer of healthcare positioned beneath primary care, intended to surface early physiological change and prompt action before symptoms or emergencies occur. The company states it does not replace physicians but supplies an earlier signal to the existing care system, spanning acute care at the top, primary care in the middle, and continuous physiology plus human stewardship as the foundational layer.
The service works by turning a smartphone camera into an optical sensor: a user places a finger over the lens for a brief period, and the system captures blood-flow patterns. Equivalent signals can also be collected through supported wearable devices. Thousands of passive measurements are aggregated into an evolving individual baseline, which the company's foundation model uses to separate normal daily fluctuation from physiological drift. Meaningful deviations are reviewed by a clinical team, and when a baseline shift is confirmed the company contacts the member with a specific plan, such as medication tuning or hydration adjustments, rather than issuing an automated alert.
Alongside the models, Preemptive assigns each member a dedicated nurse guide who follows the member longitudinally, interprets model-surfaced signals, and maintains continuity of the member's health history. The site frames the offering around three enabling conditions: ubiquitous noninvasive sensing via phones and wearables, longitudinal learning over months and years, and use of AI to filter noise so clinical staff focus on actionable signals.
Business model
Preemptive delivers a continuous monitoring and clinical stewardship service to individuals, combining software-based physiological sensing with assigned nurses and clinicians. It also positions the underlying continuous physiological layer as a foundation other parties can build on, naming clinicians, payors, digital health companies and pharmaceutical organizations as beneficiaries of the same data layer.
Traction
The site lists institutions and organizations it works with or was built alongside, including Duke Health, Stanford Health Care, UW Medicine, MultiCare, the Allen Institute for AI (Ai2) incubator, Inspired, Precursor and Meridian Street. It also states that four or more dedicated nurses and clinicians support members.
▸Full profile — market position, technology, go-to-market, geography
Market position
Preemptive characterizes existing healthcare as reactive, with acute care handling emergencies and primary care managing diagnosed conditions, and positions itself as a missing foundational layer beneath both. It states that clinically meaningful insight previously required invasive tests or in-clinic visits, and that consumer devices captured raw signals that were not interpretable at scale.
The company contrasts its model with alert-only consumer monitoring, emphasizing human interpretation of every meaningful signal, a consistent assigned nurse guide rather than call-center staffing, outreach that includes a specific care plan, and longitudinal baselines rather than one-off readings. It also frames its position as additive to, rather than competitive with, primary care.
Technology
The core technology converts a smartphone camera into an optical sensor that captures blood-flow signals from a fingertip, with the same signals also obtainable from enabled wearables. A foundation model aggregates thousands of passive readings to build and update a per-person baseline and detect deviation from it. Algorithmic detection is paired with human review: the clinical team assesses every meaningful signal to distinguish noise from clinical risk before any outreach.
Go-to-market
The website offers prospective users a direct entry point to obtain a baseline, and the company reports working with research institutions, clinicians and long-term partners on proactive care.
Stated audiences include individual members concerned with age-related change, families monitoring aging parents, clinicians seeking to identify patients needing intervention, payors aiming to manage health at the baseline rather than react to emergencies, digital health companies wanting a continuous physiological layer beneath their interventions, and pharmaceutical companies studying physiological change across populations.
Geography
Named institutional relationships are with U.S.-based health systems and research organizations, including Duke Health, Stanford Health Care, UW Medicine, MultiCare and the Allen Institute for AI.
Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
In the news
▸Research sources · 1
primary sources listed
- Preemptivepreemptive.health · web
1 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Preemptive do?
- Preemptive is a continuous health monitoring service that pairs phone- and wearable-based physiological sensing with clinician review.
- Who founded Preemptive?
- Preemptive was founded by Jamien McCullum, Matt Whitehill in 2022.
- Who are Preemptive's investors?
- Preemptive's investors include Evolution VC Partners, Blumberg Capital, Hike Ventures, Oregon Venture Fund, Runtime Ventures.