We’re a nonprofit start-up bringing clinicians, data scientists, developers and designers together to build tools and products that transform the way personal, digital data can be used in health care.


David Haddad

David is a co-founder and Executive Director of Open mHealth. He comes with a breadth of experience in both domestic and global health, working for organizations like the World Bank and UN Foundation. David holds a master’s degree in health economics and policy from the London School of Economics and a bachelors in chemistry and public health from UC Berkeley.

Ida Sim

Ida is a co-founder and Principal Clinical Data Scientist of Open mHealth. She is a professor of medicine at the University of California, San Francisco and co-director of Biomedical Informatics for UCSF’s Clinical and Translational Science Institute. She received her MD/PhD from Stanford University.

Deborah Estrin

Deborah is a co-founder of Open mHealth. She is a professor of computer science at Cornell Tech and was the founding director of the NSF-funded Center for Embedded Networked Sensing (CENS). Deborah received her Ph.D. in computer science from M.I.T., and bachelors from UC Berkeley.


Katie McCurdy

Katie McCurdy is excited to lead design for Open mHealth. By combining her background as a chronic patient with her passion for UX design and research, she aims to empower patients and improve the experience of stakeholders throughout the healthcare system.

Emerson Farrugia

Emerson Farrugia is Open mHealth’s Chief Software Architect. He has nine years of experience designing and building distributed systems, having helped startups and multinationals create systems that scale. He received his B.S. and M.S. in Computer Science from GMU.

Jasper Speicher

Jasper is a front-end focused software engineer at Open mHealth. He has a decade of experience working at the intersection of art, design and technology. He holds a bachelors degree from Brown University in engineering + visual arts and a masters in computer music and multimedia and has worked on some cool projects at Tellart and a number of startups and consultancies around the bay area.

Simona Carini

Simona Carini is Open mHealth’s Data Scientist. Her background includes nursing, clinical data science and medical information science. She received her B.A. from the University of the Sacred Heart (Milan, Italy) and M.A. from Mills College, CA.

Josh Selsky

Josh was the first developer for Open mHealth. He holds a BS in Computer Science from the Illinois Institute of Technology and is a software developer with 15 years of professional experience working at startups, within academia, and at corporations both large and small.


Eric Horvitz

Managing Director, Microsoft Research

John Mattison

Chief Medical Information Officer, Kaiser Permanente

Jody Ranck

Director of Digital Health, TM Forum


During their service together on a National Academies committee in 2008, Deborah Estrin and Ida Sim realized that if the learnings from other information technologies could be applied to mobile health, the impact on health care could be dramatic. In 2010, they co-authored a Policy Paper in Science calling for an open ‘mHealth’ architecture. In April 2011, Deborah and Ida convened a group of technology and health experts to figure out how to realize such an architecture. In September 2011, Open mHealth was born.


Open mHealth is a registered non-profit (501c3) under the Tides Center. The organization depends on private donations, foundations, corporate and strategic partnerships to fund everything from staff salaries to basic operations. These investments go to continuing to build the Open mHealth platform and ecosystem. Open mHealth is proud to be supported by:

Robert Wood Johnson Foundation (current)
California Health Care Foundation (2011-12)
Vodafone Americas Foundation (2012)
McKesson Foundation (2012)

Open mHealth believes that innovation comes through open community and collaboration. To learn more about how your organization can contribute to Open mHealth, contact us at admin@openmhealth.org.



Is Open mHealth a non-profit, and why?

Open mHealth is an independent non-profit organization with 501c3 status under the fiscal sponsorship of the Tides Center. We strongly believe in being neutral and promoting all sectors of the mHealth ecoysystem, including both for-profit and non-profit solutions. Our non-profit status allows us the greatest flexibility to pursue our goal of breaking down integration barriers and bringing clinical meaning to digital health data.

Isn’t Open mHealth just an academic project that’s forcing people to apply a specific data standard on app makers?

No; as part of our collective experience, we have noticed that in health care, imposed standards are often not successfully adopted. Health care is complex and needs are ever evolving, but that doesn’t mean there shouldn’t be any structure around formatting data. Open mHealth’s approach is to provide a framework for the developer community to choose which existing standards to use, if any, and when. We will seed this process with some initial recommendations and guidelines for basic data entities, such like measurement units, handling of time, geolocation, etc. You can find more details on our approach to data integration here.

Is Open mHealth US-focused or global?

The Open mHealth approach is available and applicable worldwide. Our initial efforts have been US-focused but international partners and projects are greatly welcomed.

Is Open mHealth a clinical standards development organization?

No; Open mHealth defines a syntax and guidelines for read and write APIs,  and for defining different types of data, but doesn’t impose any standards. The Open mHealth data schemas reference existing terminology standards such as SNOMED, RxNORM, LOINC to describe the clinical meaning of data payloads.

Does Open mHealth have health data that I can access?

No; Open mHealth provides a platform for building health technology products and solutions, and a way to exchange data. We do not collect or store any health data.