Full-Time
Posted on 12/31/2025
Aggregates and organizes patient health data
$100k - $180k/yr
San Francisco, CA, USA
Hybrid
Hybrid role; expects on-site in San Francisco, CA with flexibility for remote days.
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.
Company Size
51-200
Company Stage
Series A
Total Funding
$44.5M
Headquarters
San Mateo, California
Founded
2023
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Health Insurance
Dental Insurance
Vision Insurance
Unlimited Paid Time Off
Hybrid Work Options
Stock Options
Company Equity
The Sumaira Foundation selects Citizen Health as its real-world data partner. The Sumaira Foundation selects Citizen Health as its real-world data partner to accelerate neuroimmune research and provide an AI teammate for every patient. The partnership gives patients a next-generation AI teammate to support their day-to-day care while building regulatory-grade data to accelerate research. BOSTON & SAN FRANCISCO - June 18, 2026 - The Sumaira Foundation (TSF), a global nonprofit dedicated to rare neuroimmune diseases, today announced a partnership with Citizen Health, the AI-powered, patient-centered health platform, naming Citizen Health its real-world data partner across TSF's communities. Through the partnership, TSF patients will gain access to Ari, Citizen Health's next-generation AI teammate, a tool designed to help patients and caregivers make sense of their health information and navigate their care every day. The collaboration spans the full breadth of TSF's focus areas, including neuromyelitis optica spectrum disorder (NMOSD) and MOG antibody-associated disease (MOGAD), as well as the foundation's expanding work in related neuroimmune disorders. Together, the organizations aim to give an engaged community of patients better tools for daily care while building the high-quality, real-world data needed to accelerate research and the development of new treatments. "When I founded TSF, it was to make sure no patient with a rare neuroimmune disease ever feels alone or unsupported," said Sumaira Ahmed, Founder and Executive Director of TSF. "Partnering with Citizen Health lets us put a genuinely useful tool directly into the hands of our community while building the kind of data that can move research forward for every disease state we support. We chose Citizen Health because of their technology expertise, the trust they have in the rare disease community, and a founding team that includes Nasha Fitter, a rare disease mom who has built meaningfully in this space and genuinely cares about our community." For patients and caregivers, Ari is built to take on the work that too often falls on families navigating rare and complex conditions, helping them organize and interpret medical records, track symptoms over time, manage appointments, learn from others living with the same condition, and understand the next best step in their care journey. Citizen Health will also serve as the data layer and patient-facing tool supporting the foundation's research efforts. By turning everyday patient experiences into regulatory-grade longitudinal data, the partnership will help generate evidence that benefits the entire rare neuroimmune community. This includes streamlining data collection and reducing burden on participating patients in TSF's comparative effectiveness research in NMOSD, as well as TSF's expanding work in other conditions. Patients remain in control of their own data and choose whether to contribute it, in de-identified form, to research. "What drew us to TSF is how much they care, and how smartly and optimistically they're building research that can show their community which treatments work best and help create new ones," said Nasha Fitter, Chief Business Officer and Co-founder of Citizen Health. "As a mom raising a child with a rare disease, I know how much it matters to have tools that let patients contribute to that data without adding burden. That's what Ari does; it helps people day-to-day while building the kind of data that can actually change the path of these diseases." Citizen Health and The Sumaira Foundation will share more about the partnership and demonstrate Ari at TSF's upcoming Patient Day events in Rochester, Minnesota; Michigan; Miami; and Los Angeles, where Citizen Health has been invited to present a combined vision alongside the broader rare neuroimmune community. About The Sumaira Foundation. Founded in 2014 by Sumaira Ahmed shortly after her own NMOSD diagnosis, The Sumaira Foundation (TSF) is a global nonprofit dedicated to raising awareness of rare neuroimmune conditions, building communities of support for patients and caregivers, funding and leading research, and advocating on behalf of patients. Beginning with NMOSD and MOGAD, the foundation has expanded its work to a growing range of rare neuroimmune diseases and supports a community of thousands of patients worldwide. Learn more at sumairafoundation.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 advocate, 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.
Citizen Health, an AI-powered platform for rare disease patients, has raised more than $44 million in venture funding since its 2023 launch, including a $30 million Series A round led by 8VC in August 2025. Co-founded by technology entrepreneurs Farid Vij and Nasha Fitter, whose daughter has FOXG1 syndrome, the platform addresses the challenge facing rare disease families who typically spend 53 hours weekly on care beyond ordinary parenting. Citizen Health has built one of the largest rare patient data networks, with over 8,000 patients across 350 diseases and 16 pharmaceutical companies using the data. The company is now launching an "AI advocate" using agentic AI to schedule appointments, navigate insurance appeals and connect patients with clinical trials. Fitter credits the platform with helping her foundation's treatment reach FDA approval whilst saving approximately $80 million by skipping phase three trials.
The Gallbladder Cancer Foundation has partnered with Citizen Health to launch an AI-driven platform designed to help patients manage their medical records and treatment information. The AI Advocate for Gallbladder Cancer centralises health records from multiple providers and uses artificial intelligence to answer patient questions in plain language. The platform allows patients to track biomarkers, decode medical reports, prepare for appointments and organise data for clinical trials. Founder Sanjeev Kumar, inspired by his mother's Stage 4 diagnosis, said the tool aims to reduce the burden of navigating complex medical systems. The service is free for patients and caregivers. Citizen Health co-founder Farid Vij said the platform puts data control back into patients' hands. The Gallbladder Cancer Foundation, founded in 2024, supports research into treatments for this rare cancer.
Citizen Health has raised $30 million in Series A funding to develop an AI advocate for rare disease care. The round was led by 8VC, with Transformation Capital and Headline participating, bringing total funding to $44 million since its December 2023 launch. The platform aims to empower individuals with rare conditions by providing agency, clarity, and actionable insights through AI, community, and health data.
Citizen Health raises $30M in Series A Funding.