Atropos Health
Stanford, US · Founded 2019 · Delaware corporation · 95 employees on LinkedIn · 11 known investors
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Atropos Health develops a cloud-based platform that generates real-world evidence from electronic health records to inform clinical decision-making and healthcare research. The company enables healthcare institutions, clinicians, and life sciences organizations to rapidly conduct observational studies from patient data for personalized medicine and evidence-based practice.
Also known as Green Button project
Founders & leadership
Atropos Health was founded in 2019 by Nigam Shah, Brigham Hyde, Saurabh Gombar, and Nigam Shah, PhD MBBS.




Board

Investors · 11
Also in the syndicate · 2
Reported raises · per SEC filings
Form D private placements$44.3M disclosed across 3 of 4 rounds · 2022–2024
▶$33MraisedMay 2024 · 7 investors · Other Health CareRule 506(b)
- Neil SanghaviExecutive Officer
- Nigam ShahDirector
- Matthew BettonvilleDirector
- Mike SpadaforeDirector
- Brigham HydeExecutive Officer, Director
- Saurabh GombarExecutive Officer
- Offering amount
- $33M
- Amount sold
- $33M
- First sale
- May 2024
- Incorporated
- Corporation, Delaware, 2019
- Federal exemptions
- 06b
▶$3.3MraisedAug 2023 · 8 investors · Other Health CareRule 506(b)
- Nigam ShahDirector
- James BreyerDirector
- Neil SanghaviExecutive Officer
- Brigham HydeExecutive Officer, Director
- Saurabh GombarDirector
- Matthew BettonvilleDirector
- Offering amount
- $5M
- Amount sold
- $3.3M
- First sale
- Jul 2023
- Incorporated
- Corporation, Delaware, 2019
- Federal exemptions
- 06b
▶$8MraisedAug 2022 · 16 investors · Other Health CareRule 506(b)
- NIGAM SHAHDirector
- SAURABH GOMBARDirector
- MATTHEW BETTONVILLEDirector
- NEIL SANGHAVIExecutive Officer
- JAMES BREYERDirector
- BRIGHAM HYDEExecutive Officer, Director
- Offering amount
- $8M
- Amount sold
- $8M
- First sale
- Aug 2022
- Incorporated
- Corporation, Delaware, 2019
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Company profile
researched Aug 2026Atropos Health builds software that converts real-world clinical data, primarily from electronic medical records, into methodologically documented observational studies that answer specific clinical questions. Its core technology is GENEVA OS, described as an operating system for rapid healthcare evidence generation across a network of real-world data sources. Queries run against a network of de-identified patient records; the system executes statistical analyses and formats results into a standardized observational study report the company calls a Prognostogram. The company positions this against what it terms the "evidence gap" — its site states only 14% of daily medical decisions are backed by high-quality evidence, and it cites a 2017 BMJ study finding 18% of primary care clinical recommendations rest on current evidence, along with the exclusion of much of the population from clinical trials.
Products include ChatRWD, a chat-based generative-AI interface launched in beta in Q4 2023 that produces full observational studies on real-world data, built as an LLM-independent framework intended to limit hallucination risk and preserve institutional LLM security. Other named assets include the Atropos Evidence Network of partner healthcare institutions and data sources, and Alexandria, a body of medical evidence that the company states contains 33 million precision Evidence-Based Findings, with plans to grow to more than two billion studies in 2026. An Atropos Evidence Agent MCP has been published on the Databricks Marketplace.
For health systems, the company markets applications across pharmacy and formulary program design, quality and operations, value-based care and population health, graduate medical education, point-of-care decision support, and academic publishing support, stating timelines of under two weeks from idea to abstract or poster and two months to manuscript. Reported customer-side outcomes cited on its site include $547K in drug cost savings from comparative effectiveness studies, $1.2M in research cost savings, and $1.62M in length-of-stay savings.
Founding story
Atropos Health was founded in 2019 by Brigham Hyde, Nigam Shah and Saurabh Gombar as a spin-out of the "Green Button" project at Stanford University, which used dormant EMR data to inform clinical decision-making.
Business model
Atropos Health sells access to its evidence-generation platform, tools and data network to healthcare provider organizations and life sciences companies, combining cloud software with a physician-centered service that fulfills clinical informatics consult requests and delivers study reports.
Commercial contracts with healthcare institutions and life sciences organizations for platform access and evidence generation; the company directs prospects to a sales team rather than publishing pricing.
Traction
The company reports more than 10,000 clinical questions converted into studies for clients, over 50 peer-reviewed publications including in Cell and NEJM Catalyst with a stated 100% publication success rate, and $100M in client-reported savings. Its evidence network is described as covering hundreds of millions of de-identified records, with more than 200 million unique patients cited in May 2024. Named users and partners include Stanford Health Care, Mayo Clinic Platform, Arcadia, Emory Healthcare, and Janssen Research & Development.
Latest developments
Following the May 2024 Series B, the company expanded its partnership with Databricks by launching the Atropos Evidence Agent MCP on the Databricks Marketplace, and announced that its Alexandria evidence base reached 33 million precision Evidence-Based Findings with a target of more than two billion studies in 2026. It also presented a study on the association between semaglutide and bone fracture risk in type 2 diabetes at an Endocrine Society meeting.
▸Full profile — market position, technology, go-to-market, geography, history, risks & controversies
Market position
Operates at the intersection of real-world evidence research and applied AI in healthcare, describing itself as the pioneer in translating real-world clinical data into personalized real-world evidence; press coverage characterizes it as a Stanford spin-out competing to serve both provider and pharma real-world data needs.
Emphasis on speed (studies in minutes rather than weeks or months), methodological transparency and publication-grade output, data fitness scoring, an LLM-independent architecture designed to avoid hallucinations, and a federated network of partner data that avoids moving data.
Technology
Cloud-based, scalable analytics built on GENEVA OS, which orchestrates queries against federated de-identified real-world data, applies statistical methods and generates standardized publication-grade observational study reports (Prognostograms). Predecessor technologies include Stanford's ACE (Advanced Cohort Engine) for searching longitudinal patient records and the "Green Button" informatics consult concept. ChatRWD adds a natural-language interface and is LLM-independent; a demonstrated query produced a publication-grade study in under three minutes. The platform also provides data fitness scoring and phenotype selection tooling.
Go-to-market
Direct enterprise sales supported by clinical and life sciences advisory boards, peer-reviewed publications and conference presentations, customer user stories, and channel/technology partnerships including Arcadia, Mayo Clinic Platform, Databricks Marketplace and pharmaceutical collaborations such as Janssen Research & Development.
Health systems and academic medical centers (clinicians, researchers, pharmacy, quality, population health and value-based care teams), research institutions, data platforms, and pharmaceutical and life sciences companies.
Geography
United States-focused, with a Palo Alto, California base referenced in funding announcements and roots at Stanford University; management has stated an ambition to build an international federated healthcare data network.
History
The company traces its lineage to 2011, when Dr. Frankovich used rapid EHR assessment to inform an anticoagulation decision for a lupus patient, followed by 2014 work on a "Green Button" for using aggregate patient data at the point of care, the 2016 creation of ACE and TQL in Dr. Shah's Stanford lab, and the first informatics consult pilot at Stanford in 2018. Atropos Health launched in 2020 to scale clinical informatics consults. Mayo Clinic Platform partnered with the company in 2022. A $14M Series A closed in August 2022. In autumn 2023 the company launched GENEVA OS and the ChatRWD chatbot interface in beta and signed a partnership with Janssen Research & Development. A $33M Series B was announced in May 2024, with value-based care investor Mike Spadafore of Valtruis joining the board.
Risks & controversies
The company acknowledges that hallucination risk in generative AI is unacceptable in clinical evidence and states ChatRWD is architected to eliminate it. Several of the outcome and savings figures it publishes are self-reported client results rather than independently verified.
Compiled by commissioned research from 8 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.
Competitors · 2
by search overlapCompanies competing with Atropos Health for the same Google search keywords, organic and paid, via search-intersection analysis.
Timeline · 10
launches, deals, and filingsExpanded partnership with Databricks bringing the Atropos Evidence Agent MCP to the Databricks Marketplace.
Series B to invest in real-world evidence for value-based care, expand the Atropos Evidence Network into oncology and specialty areas, and fund the full launch of ChatRWD.
$33M source ↗
Collaboration with Janssen Research & Development, a Johnson & Johnson company, to accelerate clinical development using real-world data analysis.
Company launched its GENEVA OS operating system and the ChatRWD chat-based interface in beta in Q4 2023 for rapid generation of observational studies.
$14M source ↗
Partnership combining Mayo Clinic data with Atropos Health clinical informatics technology.
Company launched to scale clinical informatics consults and make real-world evidence accessible at the point of need.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
Legal entities · 1
corporate structureIn the news
▸Research sources · 8
primary sources listed
- Atropos Healthatroposhealth.com · web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Atropos Health do?
- Atropos Health turns real-world clinical data into publication-grade evidence reports for clinicians, health systems and life sciences.
- Who founded Atropos Health?
- Atropos Health was founded by Nigam Shah, Brigham Hyde, Saurabh Gombar, Nigam Shah, PhD MBBS in 2019.
- Who are Atropos Health's investors?
- Atropos Health's investors include Yosemite, Breyer Capital, Cencora Ventures, Cerity Partners Ventures, mark vc, McKesson Ventures, Presidio Ventures, Samsung Next and 1 more.
- How much funding has Atropos Health raised?
- Atropos Health has disclosed $44.3M raised across 3 of its 4 known rounds.
- Where is Atropos Health headquartered?
- Atropos Health is headquartered in Stanford, US.




