Citizen Health

Citizen Health

Aggregates and organizes patient health data

Overview

Citizen Health aggregates and organizes patients’ medical histories into a searchable digital platform, giving patients and their families a way to access, manage, and share health data with clinicians and researchers. It collects records from multiple sources, indexes them, and provides search, filter, and export features so users can use their data for care decisions and to participate in studies. The company differentiates itself by prioritizing patient control over data and enabling patient-driven research, partnering with healthcare providers and research organizations to speed drug development and improve outcomes. Its goal is to make health data more accessible and usable for patients, clinicians, and researchers to transform care and support new treatments.

About Citizen Health

Simplify's Rating
Why Citizen Health is rated
B
Rated B on Competitive Edge
Rated A on Growth Potential
Rated C on Differentiation

Industries

Data & Analytics

Enterprise Software

Healthcare

Company Size

51-200

Company Stage

Series A

Total Funding

$44.5M

Headquarters

San Mateo, California

Founded

2023

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Simplify's Take

What believers are saying

  • Citizen Health raised $30 million in August 2025, totaling over $44 million.
  • By July 2026, more than 8,000 patients and 16 pharma companies used its data.
  • 2026 partnerships expanded Ari into Angelman, NMOSD, MOGAD, and gallbladder cancer communities.

What critics are saying

  • HIPAA-like privacy breaches or model errors can trigger OCR complaints and reputational collapse.
  • Pharma revenue concentrates on de-identified datasets; any consent backlash destroys the data moat.
  • Incumbents and foundations can replicate concierge record tools, commoditizing Ari within 12 months.

What makes Citizen Health unique

  • Citizen Health combines patient-owned records, AI teammate Ari, and research-grade longitudinal data.
  • It specializes in rare disease communities, where fragmented records and trial matching create acute pain.
  • Partnerships with RSRT, TSF, ASF, and GBCF anchor disease-specific data networks.

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Funding

Total Funding

$44.5M

Above

Industry Average

Funded Over

2 Rounds

Series A funding typically happens when a startup has a product and some customers, and now needs funding to scale. This money is usually used to grow the team, expand marketing, and improve the product. Venture capital firms are frequently the main investors here.
Series A Funding Comparison
Above Average

Industry standards

$15M
$8.2M
Discord
$15M
Canva
$30M
Kalshi
$30M
Citizen Health

Benefits

Health Insurance

Dental Insurance

Vision Insurance

Unlimited Paid Time Off

Hybrid Work Options

Stock Options

Company Equity

Growth & Insights and Company News

Headcount

6 month growth

-4%

1 year growth

0%

2 year growth

12%
The Rett Syndrome Research Trust (RSRT)
Aug 3rd, 2026
Six years of partnership: how RSRT and Citizen Health are accelerating Rett research.

Six years of partnership: how RSRT and Citizen Health are accelerating Rett research. For the past six years, RSRT and Citizen Health have worked together to accelerate the development of genetic medicines for Rett syndrome. * Genevieve Laforet, MD, PhD August 3, 2026 For the past six years, RSRT and Citizen Health have worked together to accelerate the development of genetic medicines for Rett syndrome. By combining RSRT's expertise in Rett syndrome and connection with the family community with Citizen Health's innovative approach to securely collecting and organizing healthcare data, this partnership aims to help industry better understand the disorder and design more efficient and expedient clinical trials. Why does this matter? To develop new treatments for Rett syndrome and other rare disorders, researchers need to understand two things: how the disease changes over time and what meaningful improvement would look like if a treatment works. That information, known as natural history data, is the foundation of every clinical trial. Natural history data provides a detailed picture of how Rett syndrome progresses, both in individual patients and across the broader Rett community. When collected rigorously, this information helps scientists: - Recognize when a treatment is working, sometimes earlier than would otherwise be possible. - Design more efficient clinical trials with less burden on families. - Move more quickly toward FDA approval and patient access. Natural history data has already changed how rare disease trials work. In some cases, it removes the need for a placebo (untreated) comparison group, because researchers already know what the expected course of the disease looks like without treatment. It also helps identify which specific developmental milestones are the most meaningful signs that a treatment is working. Two ongoing Rett gene therapy programs, from Neurogene and Taysha, are relying on the NIH's traditional Rett natural history study to define exactly these kinds of milestones. The FDA has agreed that improvements in these milestones could support approval of the gene therapies. A Faster, Fully Remote Approach In 2020, as COVID-19 was closing down in-person Rett clinic visits worldwide, RSRT and Citizen Health launched a new kind of natural history study - one that could be done entirely from home. With a caregiver's permission, the study retrieves relevant information directly from a patient's existing medical records, with no clinic visits required. This effort, called the CARE Study (Citizen Health Aggregated Health Record Extraction), has now collected and analyzed data from 147 Rett patient medical records, with more on the way. Early findings were presented at the 2026 American Society of Gene & Cell Therapy conference and will soon be submitted to a peer-reviewed scientific journal. Why This Is a Big Deal Traditional natural history studies typically require years of in-person visits. The CARE Study shows that carefully extracting information already sitting in medical records can gather and analyze years' worth of rare disease data in a matter of weeks - at a fraction of the cost, and from a broader, more diverse group of participants across more locations. Faster, more representative data means faster and more robust clinical trials, and earlier access to new treatments for the families who need them. Forward-thinking initiatives like this one are central to RSRT's mission of advancing genetic medicines to cure Rett syndrome. You Can Help The CARE digital natural history study is open for participation for US families. If you consent to participate, Citizen Health handles the rest - retrieving your loved one's medical records on your behalf. No further action is needed from you. The CARE Study welcomes anyone in the US with a clinical diagnosis of Rett confirmed with a genetic mutation in MECP2. Thank you for helping move Rett research forward.

Yahoo Finance
Jul 29th, 2026
Angelman Syndrome Foundation partners with Citizen Health to launch AI advocate for rare disease families

The Angelman Syndrome Foundation has partnered with Citizen Health to provide AI-powered support to families affected by Angelman syndrome. The collaboration will introduce Ari, an AI advocate designed for rare disease families, at the 2026 ASF Family Conference in Denver from 30 July to 1 August. Ari performs administrative tasks for families managing rare diseases, including organising medical records from multiple specialists, tracking seizures and symptoms through voice-to-text input, and identifying relevant clinical trials. The system operates proactively, alerting families via text before they need to ask. The technology aims to reduce time spent on administrative work whilst helping families stay informed about research opportunities. For families who consent, de-identified data from their records can support research efforts for the Angelman community, which comprises approximately 500,000 people globally.

VocoLife
Jul 29th, 2026
Angelman Syndrome Foundation: AI advocate for rare disease care.

Angelman Syndrome Foundation: AI advocate for rare disease care. 3h ago · 0:00 listen · Source: Fierce Healthcare Summary. The Angelman Syndrome Foundation is partnering with Citizen Health to offer families access to an artificial intelligence advocate called Ari. This AI tool is designed specifically for rare disease communities. The Foundation states it is among the first to directly provide such an AI advocate to its families. Ari will help families navigate and manage complex conditions. What's interesting is that the platform aggregates medical records and assists with care coordination. Angelman syndrome is a rare neurodevelopmental disorder affecting about one in 15,000 people. The CEO of the Angelman Syndrome Foundation, Amanda Moore, whose son has the condition, says Ari will help ease the burden on parents. Families will get access to Ari at the 2026 ASF Family Conference in Denver. A phased rollout will then begin, starting in the United States and expanding globally. The bottom line is this partnership aims to make the journey easier for families facing rare disease diagnoses. This is an AI-generated audio summary. Always check the original source for complete reporting.

Africa Finance Today
Jul 29th, 2026
Angelman Syndrome Foundation and Citizen Health partner to put advanced AI to work for every angelman family.

Angelman Syndrome Foundation and Citizen Health partner to put advanced AI to work for every angelman family. Citizen Health's AI advocate for rare disease families debuts for the Angelman community at the 2026 ASF Family Conference. SAN FRANCISCO and DENVER, July 29, 2026 (GLOBE NEWSWIRE) - The Angelman Syndrome Foundation (ASF) and Citizen Health today announced a partnership to bring Ari, Citizen Health's AI advocate for rare disease families, to the Angelman community. ASF is among the first foundations to put this technology directly in the hands of its families, who will get access to Ari at the 2026 ASF Family Conference, held July 30 through August 1 at the Gaylord Rockies Resort near Denver, Colorado. For too long, rare disease families have been an afterthought in health technology, left to manage extraordinarily complex medical lives with tools built for everyone but them. This partnership starts from a different belief: that the roughly 500,000 people suffering from Angelman syndrome globally deserve the best technology available, working for them around the clock. "Rare disease families deserve the best technology at their fingertips, not whatever gets built for everyone else first," said Nasha Fitter, Co-Founder and Chief Business Officer of Citizen Health. "Ari does the work that families have had to do alone for years, and it does it proactively. We are honored that ASF, one of the largest and most research-driven communities in rare disease, is bringing the technology to families who can truly benefit from it." Ari is a proactive advocate that takes on the relentless administrative work of rare disease management. For an Angelman family, that means Ari tracks down and organizes the medical records scattered across neurologists, geneticists, and therapists. It keeps a running history of seizures and symptoms entered seamlessly via voice to text by the caregiver, and watches for clinical trials and research as they open, flagging what is relevant to that specific child. Much of this happens in the background, and Ari reaches out by text before a parent has to ask. The result is real relief. Fewer hours on hold with health systems, less paperwork at the kitchen table, and more time and attention for the child at the center of it all. For families who choose to share de-identified insights from their medical records, the same securely organized data also helps speed the research and therapies the Angelman community is working toward. "After my son Jackson was diagnosed with Angelman syndrome in 2016, I saw firsthand how little support exists for families navigating this alone," said Amanda Moore, Chief Executive Officer of the Angelman Syndrome Foundation. "As a mom, I know how much of this work falls on parents, and how little of it technology has ever helped with. Ari takes that load off. It keeps our families organized and informed, and for those who want it, it opens a real door to the research that will change our children's lives." Why ASF and Citizen Health ASF is one of the leading research funders in the field, having invested more than $18 million in Angelman syndrome research at universities and medical centers worldwide. That early investment has helped unlock more than $200 million in additional funding, and ASF-backed science laid the groundwork for many of the therapeutic approaches now in development. Angelman syndrome is a rare neurodevelopmental disorder that affects roughly one in 15,000 people, with seizures among its defining challenges. As a growing number of investigational therapies advance toward families, the value of organized, real-world data has never been higher. Ari connects everyday care to that research pipeline. As families use it, they build the kind of data that helps move therapies forward, entirely on their own terms. Sharing data for research is always optional, and families control their own information and decide whether and how it is used. Available at the 2026 ASF Family Conference Citizen Health will exhibit at the conference, and Nasha Fitter will present Ari during the opening session, joined by members of the Angelman community who will share how they are already using it. Following the conference, the two organizations will begin a phased rollout of Ari, starting with families in the United States and expanding to ASF's global community in waves, so each group has a reliable, well-supported experience as availability grows. About the Angelman Syndrome Foundation The Angelman Syndrome Foundation is dedicated to advancing the awareness and treatment of Angelman syndrome through education, information, research, and support for individuals with Angelman syndrome and their families. ASF has invested more than $18 million in research, provides clinical care for families, and family support programs, and brings families together through its Family Conference and Angelman Strong events. Learn more at angelman.org. About Citizen Health Citizen Health is building the future of healthcare, starting with rare disease. By combining AI, community, and longitudinal health data, Citizen Health empowers patients to take control of their care and contribute to regulatory-grade data that can accelerate treatments. Its AI teammate, Ari, helps patients and caregivers interpret medical records, track symptoms, learn from peers, manage appointments, and connect to the next best step in their health journey. Citizen Health is headquartered in San Francisco, California. Learn more at citizen.health. Media Contacts Citizen Health Amanda Wells [email protected] Angelman Syndrome Foundation Amy Friel [email protected] 800.432.6435 Legal Disclaimer: EIN Presswire provides this news content "as is" without warranty of any kind. Africa Finance Today do not accept any responsibility or liability for the accuracy, content, images, videos, licenses, completeness, legality, or reliability of the information contained in this article. If you have any complaints or copyright issues related to this article, kindly contact the author above.

PR Newswire
Jul 24th, 2026
Gallbladder Cancer Foundation partners with Citizen Health to bring AI assistant Ari to patients

The Gallbladder Cancer Foundation and Citizen Health have expanded their partnership to provide Ari, an AI assistant for patients and caregivers, to the gallbladder cancer community. Ari helps patients manage their care by gathering medical records, translating pathology reports into plain language, tracking treatments and side effects, and identifying relevant clinical trials. The tool is designed to address the lack of support resources typically available for rare cancers. It operates proactively, checking in via text when decisions are needed rather than waiting for prompts. Ari prepares documentation for second opinions and insurance appeals whilst allowing patients to maintain control over their information. The service is free for gallbladder cancer patients, with optional premium tiers available. Setup takes approximately five minutes.

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