Quest Diagnostics Launches Google Gemini Powered AI Companion
“People want to understand their lab data, but not everyone feels comfortable uploading their health data to public AI platforms”
Quest Diagnostics has announced the launch of Quest AI Companion, a new AI‑powered chat feature embedded inside its MyQuest mobile app and patient portal.
The tool helps patients understand, interpret, and act on their lab test results in collaboration with their healthcare provider.
The companion, based on Google’s Gemini models and built through a strategic collaboration with Google Cloud, debuted on March 2, 2026. Since it lives inside Quest’s HIPAA-compliant platform, users never need to copy or upload sensitive health data into public AI services.
Instead, patients simply chat with the Companion and instantly get clarifications on their test names, reference ranges, and what results mean for their health.
“Patients often tell us they want help simplifying and understanding their test results and what the results communicate about their health,” said Nicole Antonson, vice president of digital solutions and interoperability at Quest Diagnostics. “Now, Quest AI Companion builds on this history and empowers patients to analyze their results and spot trends they can discuss with their healthcare provider, for smarter and simpler testing that illuminates a path to better health.”
Analysing Years of Data
The AI Companion can analyze up to five years of an individual’s Quest lab data, surfacing trends and patterns that might indicate underlying health risks. Users can ask questions like, “Why was my cholesterol high?” or “What does this trend in my glucose levels mean?” and receive personalized, plain explanations tied specifically to their reports.
It can also define test names and medical terminology, translate numeric values relative to reference ranges (high, low, or within range), and generate questions patients can bring to their clinicians.
Quest points to its own survey data showing that many individuals remain hesitant about using generative AI apps to analyze personal health data, mainly due to concerns about privacy and data security.
By delivering an AI assistant via a provider‑branded platform that already manages patients’ most sensitive information, Quest aims to bridge the trust gap.
“People want to understand their lab data, but not everyone feels comfortable uploading their health data to public AI platforms,” explained Yuri Fesko, M.D., senior vice president and chief medical officer at Quest. “Quest AI Companion empowers people to access the benefits of gen AI from a healthcare services provider they already know and trust to manage their most personal lab information.”
The Quest AI Companion runs on Google Cloud technology. Quest announced the Google partnership in March 2025, and the new tool uses Google’s advanced Gemini family of AI models to power its chat interface.
This means the Companion benefits from the latest natural language understanding capabilities and it can even parse medical reports and extract meaningful insights in context. At the same time, all computation occurs within Quest’s secure servers and the MyQuest app.
As Quest explained, their collaboration “integrates Google Cloud’s advanced AI technologies to streamline data management and improve customer experiences”
Quest Diagnostics helps the lives of approximately one-third of American adults each year and serves roughly half of the physicians and hospitals in the United States annually. The company operates approximately 2,000 patient service centers across the United States and employs over 55,000 people.
While Quest did not disclose the number of active MyQuest users, the platform serves as the primary digital interface for patients accessing their lab results from one of the largest diagnostic testing networks in the country.
Despite its analytical capabilities, Quest is very clear about what the AI Companion is not. The company stresses that the tool is not a substitute for professional medical advice, nor is it a diagnostic engine.
It is positioned strictly as an educational aid, meant to help patients come to their appointments with more context and a clearer understanding of their trends.
Users must be at least 18 years old to access the feature, and the system is designed to prompt continued engagement with clinicians.
The disclosures suggest that patients should continue to consult their healthcare provider about test results and any symptoms, and that treatment decisions should never be based solely on the AI’s output.
The Quest AI Companion does not replace clinical judgment, but it does preload the patient‑provider conversation with better informed questions and mapped out trends.
For patients, the Quest AI Companion is a way to democratize access to lab‑data literacy. Instead of staring at PDFs full of cryptic acronyms and numbers, users can now learn about their own histories and proactively ask their doctors targeted follow ups.
For healthcare systems and payers, the AI agents that live inside existing clinical workflows and trusted platforms may be more likely to gain traction than public‑facing chatbots.